This vibration actuator includes: a housing; a first movable part that has a magnet part and is disposed in such a manner as to be capable of reciprocating in a vibration direction that is along the axial direction, such reciprocation being within the housing and via a first elastic support part joined to both ends of the magnet part, the ends being separated in the axial direction of the magnet part; and a second movable part that has a coil part disposed to surround the magnet part, and that is disposed so as to be capable of reciprocating along the vibration direction at the outer periphery of the first movable part such reciprocation being within the housing and via a second elastic support part joined to both ends of the coil part, the ends being separated in the axial direction of the coil part.
H02K 33/18 - Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with coil systems moving upon intermittent or reversed energisation thereof by interaction with a fixed field system, e.g. permanent magnets
2.
MOTOR DRIVE CONTROL DEVICE, MOTOR UNIT, AND MOTOR DRIVE CONTROL METHOD
The rotation speed of a motor is made to more reliably approach a target rotation speed. A motor drive control device includes: a drive circuit configured to apply an AC voltage converted by switching a DC voltage (VDD) to a coil of a motor based on a drive control signal (Sd) for controlling drive of the motor; and a control circuit configured to perform PWM control for generating a PWM signal as the drive control signal (Sd) in a manner that a rotation speed (Sr) of the motor matches a target rotation speed (Stg) and a sinusoidal current flows through the coil. The control circuit generates the PWM signal by increasing a modulation degree indicating a ratio of a command value of the AC voltage relative to the DC voltage (VDD) when the rotation speed (Sr) has not reached the target rotation speed (Stg).
H02P 27/08 - Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using DC to AC converters or inverters with pulse width modulation
3.
MOTOR DRIVE CONTROL DEVICE AND MOTOR DRIVE CONTROL METHOD
To provide a motor drive control device and a motor drive control method capable of achieving high motor drive efficiency and suppressing the occurrence of vibration. A motor drive control device includes a control circuit unit configured to output a drive control signal (Sd) for PWM-driving a motor, and a motor drive unit configured to drive the motor based on the drive control signal (Sd). The control circuit unit adjusts a PWM frequency of the drive control signal (Sd) such that the PWM frequency is in a predetermined range and the number of PWM pulses per one cycle of an electrical angle of the motor is a desired value in a first rotation speed range of predetermined rotation speed ranges of the motor, and the PWM frequency is in the predetermined range in a rotation speed range other than the first rotation speed range.
H02P 27/08 - Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using DC to AC converters or inverters with pulse width modulation
The application improves a design while controlling cost increase. In a vehicle cabin illuminating device, a first and second cabin LEDs are housed in a case. A panel of the case is provided with a cabin illuminator, and a light irradiated from the first and the second cabin LEDs passes through the cabin illuminator to illuminate inside a vehicle cabin. The panel is provided with a decorative illuminator having a decorative translucent portion that can transmit light, and the first lens housed in the case guides light from the first cabin LED to a back side of the decorative illuminator, and the second lens housed in the case guides light from the second cabin LED to the back side of the decorative illuminator. Thus, the decorative illuminator can be illuminated using the first and second cabin LEDs for illuminating inside the vehicle cabin, thereby decorating the vehicle cabin illuminating device.
B60Q 3/66 - Arrangement of lighting devices for vehicle interiorsLighting devices specially adapted for vehicle interiors characterised by optical aspects using light guides for distributing light among several lighting devices
B60Q 3/70 - Arrangement of lighting devices for vehicle interiorsLighting devices specially adapted for vehicle interiors characterised by the purpose
The planar illumination device includes a substrate including a plurality of light sources provided at one surface side, and a reflector disposed at the one surface side of the substrate and including a plurality of segments corresponding to the plurality of light sources, respectively, each of the segments being formed with a reflection surface surrounding each of the light sources. In an outer peripheral part segment disposed at an outer peripheral part of the reflector out of the plurality of segments, the reflection surface at an outer side and the reflection surface at an inner side are asymmetric.
A vibration actuator according to the present invention comprises a plate that is a magnetic body, an electromagnet that is provided on the plate and is formed by providing a coil to a center part of a core, and an elastic body that supports the core on both sides of the coil and is connected to the plate. Magnetic force generated by energization of the coil causes one of the coil or the plate to be displaced toward the other and vibrate.
H02K 33/02 - Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with armatures moved one way by energisation of a single coil system and returned by mechanical force, e.g. by springs
In accordance with one aspect of the present disclosure, an electronic device includes a housing, a contact member attached to the housing, a plate displaceable with respect to the base, an elastic member supporting the plate with respect to the base. The base, the plate and the elastic member are arranged inside the housing. A magnetic gap is formed with the plate and the base. The plate connects with the contact member.
H02K 33/02 - Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with armatures moved one way by energisation of a single coil system and returned by mechanical force, e.g. by springs
G06F 3/01 - Input arrangements or combined input and output arrangements for interaction between user and computer
H02K 5/22 - Auxiliary parts of casings not covered by groups , e.g. shaped to form connection boxes or terminal boxes
8.
GRIPPING DEVICE, GRIPPING SYSTEM, AND CONTROL METHOD BY GRIPPING DEVICE
A gripping device includes a motor configured to rotate according to an operation value; a grasper including a first finger and a second finger, the grasper being configured to change a distance between the first finger and the second finger by using the motor, and to grip an object with the first finger and the second finger; a force detector configured to detect a gripping force by which the object is gripped with the first finger and the second finger, upon occurrence of a condition in which the object is gripped with the first finger and the second finger; and a controller configured to output the operation value such that a force detection value of the gripping force detected by the force detector matches a force command value. The controller is configured to detect a deviation of the object from a predetermined reference position based on a time period from a start of a gripping operation from a timing at which any one of the first finger and the second finger contacts the object.
A strain gauge according to the present disclosure includes: a resin substrate; a resistor formed of a film containing Cr, CrN, and Cr2N on one side of the substrate; and an inorganic insulating layer formed on another side of the substrate, and, in this strain gauge, the inorganic insulating layer is formed at least at a position overlapping a region where the resistor is formed in plan view.
G01L 1/22 - Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluidsMeasuring force or stress, in general by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress using resistance strain gauges
G01B 7/16 - Measuring arrangements characterised by the use of electric or magnetic techniques for measuring the deformation in a solid, e.g. by resistance strain gauge
10.
MOTOR DRIVE CONTROL DEVICE AND INITIAL POSITION DETECTION METHOD FOR A ROTER
A control circuit that generates a drive control signal, an inverter circuit including a switch provided corresponding to the coil of each-phase of the motor, a driving circuit that rotates the rotor of the motor by alternately turning on/off the switch in accordance with the drive control signal, a shunt resistance provided between the inverter circuit and a ground, and a bidirectional current detection circuit that detects the current flowing through the shunt resistance in both directions are provided. The control circuit performs energization and interruption in the energization direction of the coil by sequentially switching the energization sectors without rotating the rotor of the motor, and estimates the position of the rotor based on the peak value of the energization current and the peak value of the kickback current due to the inductive kickback for each energization sector.
H02P 27/08 - Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using DC to AC converters or inverters with pulse width modulation
A motor as an example of the present disclosure includes a shaft, a bearing, and a holding member configured to hold the bearing, the holding member includes a protruding part protruding toward the shaft, the bearing and the protruding part are away from each other in the axial direction, and the protruding part and the shaft are away from each other in the radial direction.
H02K 5/173 - Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings
F16C 19/08 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with two or more rows of balls
The invention relates to a fluid dynamic bearing system, comprising a bearing bush and a shaft rotatably supported in the bearing bush, wherein an annular pressure plate is arranged at the shaft and wherein a bearing gap is formed which is filled with a bearing fluid, and wherein two fluid dynamic radial bearings are formed between the shaft and the bearing bush, and wherein at least one fluid dynamic axial bearing is formed between an end face of the pressure plate and an end face of a cover plate, wherein the fluid dynamic axial bearing has groove structures provided on the pressure plate or the cover plate wherein, in the connection or junction region between the shaft and the pressure plate, at least one axially extending recess or hole is present, wherein the opening of the recess or hole of the pressure plate and the groove structure of the axial bearing do not overlap in the radial direction.
An anomaly detector for detecting an anomaly of a motor includes circuitry configured to acquire a characteristic value related to the motor and process the characteristic value. The circuitry is configured to acquire the characteristic value related to the motor as inspection data, update a statistic of the inspection data, update an amplitude from an updated statistic, update an exponential moving average value of the inspection data, update an anomaly level based on the inspection data, the amplitude, the statistic, and the exponential moving average value, and detect the anomaly of the motor based on the anomaly level.
A motor drive control device includes: a control circuit configured to generate a drive control signal; a drive circuit including an inverter circuit including a switch provided corresponding to each phase of coil of the motor, the drive circuit being configured to rotate a rotor of the motor by alternately turning the switch on and off in response to the drive control signal; and a phase voltage detection circuit configured to detect a phase voltage generated between the inverter circuit and each phase of coil of the motor. The control circuit generates an idling control signal and switches a switch state of the inverter circuit to generate a current circulating between each phase of coil of the motor and the inverter circuit when the rotor of the motor is idling, and then determines idling of the motor based on a phase voltage generated at the phase voltage detection circuit by an inductive kickback generated when a path of the current is blocked.
H02P 27/08 - Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using DC to AC converters or inverters with pulse width modulation
G01R 25/00 - Arrangements for measuring phase angle between a voltage and a current or between voltages or currents
A distance estimation device estimates a distance between an image acquiring unit and a marker in a first axis direction, based on coordinates of an upper end portion of the marker; coordinates of a lower end portion of the marker; and a length between the upper end portion and the lower end portion. The distance estimation device estimates a distance between the image acquiring unit and the marker in a third axis direction, based on a first elevation angle of a projected position and the distance in the first axis direction.
G01B 11/00 - Measuring arrangements characterised by the use of optical techniques
G01B 11/14 - Measuring arrangements characterised by the use of optical techniques for measuring distance or clearance between spaced objects or spaced apertures
To measure a current of a coil of a motor with high accuracy. A motor drive control device includes a control circuit configured to generate a drive control signal based on a measurement value of a current flowing through a coil of a motor, and a drive circuit configured to drive the coil based on the drive control signal. The drive circuit includes a switch and a switch connected in series, a switch and a switch connected in series, a current detection element connected in series to the switch and the switch, and a current detection element connected in series to the switch and the switch. The coil is connected between a node with the switch and the switch connected in common, and a node with the switch and the switch connected in common. The control circuit measures the current based on a mean value of a current flowing through the current detection element and a current flowing through the current detection element.
A motor includes a stator core including a stacked body of electromagnetic steel plates, a surface of the stacked body is covered with a coating film, and the coating film is an epoxy resin-containing electrodeposition coating film subjected to overbaking.
A permanent magnet manufacturing method includes at least a magnetization target forming step of molding a magnetization target by applying a predetermined pressure to a magnet powder and a thermosetting resin, and a heating step of heating the magnet powder to the Curie point or higher while permanent magnets of a field magnet part are brought close to the magnetization target placed on a base member to magnetize the magnet powder and melting and curing the thermosetting resin to allow the magnetization target to fixedly adhere to the base member.
H01F 41/02 - Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformersApparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils or magnets
An actuator includes a movable body including: a disk-shaped magnet, a pair of disk-shaped yokes fixed to front and back surfaces of the disk-shaped magnet, a pair of spring retaining parts connected at one ends to the disk-shaped yokes, respectively, and connected at other ends to central portions of circular leaf springs, respectively, and a protruding part protruding in an axial direction of the disk-shaped magnet from the other end of one spring retaining part of the pair of spring retaining parts; and a fixing body including: a coil disposed at an outer circumference of the movable body, and a case including an opening portion through which the protruding part is inserted, the case accommodating the coil and the movable body such that a protruding end side of the protruding part protrudes to an outside.
H02K 33/18 - Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with coil systems moving upon intermittent or reversed energisation thereof by interaction with a fixed field system, e.g. permanent magnets
H02K 11/01 - Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for shielding from electromagnetic fields
H02K 11/215 - Magnetic effect devices, e.g. Hall-effect or magneto-resistive elements
A rolling bearing includes an outer ring, an inner ring, a rolling element disposed in a rollable manner between the outer ring and the inner ring, and an O-ring made of an elastic body and fitted to a peripheral groove provided at an outer peripheral surface of the outer ring. A first bottom surface is provided at a center of the peripheral groove in an axial direction, and a second bottom surface is provided at an end part of the first bottom surface in the axial direction. The second bottom surface extends in a circumferential direction and has a smaller diameter than the first bottom surface.
F16C 19/06 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row of balls
F16C 27/06 - Elastic or yielding bearings or bearing supports, for exclusively rotary movement by means of parts of rubber or like materials
F16C 35/077 - Fixing them on the shaft or housing with interposition of an element between housing and outer race ring
A coil device of the present application includes a bobbin including a winding core portion, a coil wound around the winding core portion, a flange portion provided integrally with the winding core portion, a pin terminal block provided integrally with the flange portion, a plurality of pin terminals (P) provided at predetermined intervals at the pin terminal block and connected to lead wires of the coil, and a circuit board connected to the plurality of pin terminals (P). The pin terminal block includes a plurality of pin terminal groove portions formed in a groove shape along an axial direction of the winding core portion, and a pin fixing portion formed in an interior space of the pin terminal groove and integrally fixed to one end of the pin terminal (P).
A fan according to one embodiment of the present disclosure includes a casing, an impeller including a hub portion, rotor blades, and a cylindrical portion, and fixed blades, the casing including an increasing diameter portion having an inner circumferential surface increasing in inner diameter from an air inlet side toward an air outlet side, a maximum outer diameter of the rotor blades being larger than a minimum inner diameter of the increasing diameter portion, a position of the minimum inner diameter of the increasing diameter portion being located, in an axial direction, at the air inlet side of a position of the maximum outer diameter of the rotor blades, the rotor blades projecting, in the axial direction, from the hub portion toward an air inlet, and a length of the fixed blades in the axial direction being longer than a width of the fixed blades along a radial direction.
A power supply device includes storage circuit including first node connected to power supply, second node grounded, and electrical double-layer capacitor between first and second nodes; discharge circuit to discharge the storage circuit; charge circuit to charge the storage circuit; and power supply controller to measure voltage at first node and control the discharge and charge circuits. The power supply controller performs: measuring the voltage at first node and measuring first capacitance value and first equivalent series resistance value of the electrical double-layer capacitor upon the discharge circuit discharging the storage circuit; measuring the voltage at first node and measuring second capacitance value and second equivalent series resistance value of the electrical double-layer capacitor upon the charge circuit charging the storage circuit; computing third capacitance value based on first and second capacitance values; and computing third equivalent series resistance value based on first and second equivalent series resistance values.
H02J 7/34 - Parallel operation in networks using both storage and other DC sources, e.g. providing buffering
B60R 16/03 - Electric or fluid circuits specially adapted for vehicles and not otherwise provided forArrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric for supply of electrical power to vehicle subsystems
H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
H02J 9/04 - Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
24.
POWER SUPPLY DEVICE, AND CONTROL METHOD FOR POWER SUPPLY DEVICE
A power supply device includes a storage circuit including first electrical double layer capacitor and second electrical double layer capacitor; first switch element; first discharging resistor; second switch element; second discharging resistor; and a power supply controller. The power supply controller performs procedure of discharging the first electrical double layer capacitor when an absolute value of difference between first capacitance voltage value of the first electrical double layer capacitor and second capacitance voltage value of the second electrical double layer capacitor is higher than a standard voltage value and the first capacitance voltage value is higher than the second capacitance voltage value, and procedure of discharging the second electrical double layer capacitor when the absolute value of the difference between the first and second capacitance voltage values is higher than the standard voltage value and the second capacitance voltage value is higher than the first capacitance voltage value.
A position determination system includes: at least four communication devices respectively acquiring distances to a mobile terminal; a position determination unit determining a position of the mobile terminal from the distances acquired respectively by the at least four communication devices; a region determination unit determining, from the position of the mobile terminal determined by the position determination unit, which region of a plurality of regions set around the vehicle or in a vehicle interior the mobile terminal is positioned; and a selection unit selecting three distances from the distances acquired respectively by the at least four communication devices depending on the region where the mobile terminal is positioned determined by the region determination unit. The position determination unit determines the position of the mobile terminal 3 from the three distances selected by the selection unit.
A method of producing a rare earth iron-based sintered magnet according to an embodiment includes a step of filling a mold with a rare earth iron-based magnet powder produced by a rapid quenching method, a step of setting the mold in a sintering apparatus, supplying a predetermined current from electrodes, and pressurizing and heating the rare earth iron-based magnet powder filled to produce a sintered magnet body, and a step of magnetizing the sintered magnet body with a magnetizing device. The mold includes dies having a hollow cylindrical form, punches to be inserted into the dies, and die supports made of a conductive material and respectively disposed at both ends of the dies in an axial direction. A cavity to be formed by the dies and the punches is filled with the rare earth iron-based magnet powder. The dies include an inner die made of a non-conductive material and an outer die made of a conductive material and disposed outside the inner die, inner peripheral surfaces of the die supports are in contact with an outer peripheral surface of the outer die, and the electrodes are in contact with the die supports.
H01F 41/02 - Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformersApparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils or magnets
H01F 1/057 - Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B
H01F 13/00 - Apparatus or processes for magnetising or demagnetising
A planar illumination device according to an embodiment includes a plurality of light sources, a condenser lens, and a field lens. The plurality of light sources are disposed two-dimensionally on a substrate and light emission of the plurality of light sources is individually controlled. The condenser lens is disposed at an exit side of the light sources in parallel with the substrate and configured to condense light exiting from the light sources. The field lens is disposed at an exit side of the condenser lens, disposed inclined in at least one direction orthogonal to a plane parallel to the substrate, configured to spread light incident from the condenser lens outward, and disposed along a liquid crystal panel attached externally.
A rotating device includes a shaft, an impeller fixed to the shaft, a motor causing the impeller to rotate, and a casing accommodating the impeller and the motor. The casing includes a suction port and a discharge port for a fluid. The casing and a heat sink are adjacent in a radial direction of the impeller. The heat sink includes a first part adjacent to the discharge port and a second part disposed inside the discharge port. The first part is in contact with a heat pipe. The second part is in contact with the casing in an axial direction of the impeller.
A position determination device includes: a communication unit including communication devices to perform wireless communication with a mobile terminal 1, the communication devices to repeatedly perform UWB communication for detecting a distance measurement value Vr, at least one of the communication devices being configured to repeatedly perform BLE communication for receiving the movement value Vm; a main position determination unit to determine a first coordinate position Pf(n) as a position of the mobile terminal, based on distance measurement values Vr; a sub-position determination unit to determine a second coordinate position Ps(n) as a position of the mobile terminal 1, based on the movement value Vm; and a determination position setting unit to set any one of the first coordinate position Pf(n) and the second coordinate position Ps(n) as a determination coordinate position Pj(n) that is a current position of the mobile terminal.
A motor includes a rotor and a stator opposing the rotor in a radial direction. The rotor includes a yoke, a magnet, and a resin part covering the yoke and the magnet. The resin part is disposed adjacent to the magnet in a circumferential direction.
To increase the stability of an operation when the driving of a stepping motor is started. A motor drive control device includes a control unit configured to generate a control signal (Sd) for controlling driving of a two-phase stepping motor, and a drive unit configured to drive coils of two phases of the two-phase stepping motor based on the control signal (Sd). The control unit has, as control modes, a first commutation control mode for commutating the coils according to a target energization time based on a preset commutation condition, and a second commutation control mode for commutating the coils based on a detection result of a zero crossing point of a back electromotive voltage of the coils, and the control unit generates the control signal (Sd) in the first commutation control mode at the start of activation of the two-phase stepping motor, and generates the control signal (Sd) in the second commutation control mode when the detection result of the zero crossing point satisfies a predetermined condition.
Object
Object
Objective is to provide a grease composition for a pivot assembly and a pivot assembly bearing filled with the grease composition, and to provide a bearing apparatus as well as a drive apparatus including the bearing apparatus, which is capable of suppressing adhesion of a volatilized component to a magnetic disk or the like even when the grease composition is volatilized by application of the grease composition and the bearing, thereby suppressing occurrence of read/write errors of an HDD.
Object
Objective is to provide a grease composition for a pivot assembly and a pivot assembly bearing filled with the grease composition, and to provide a bearing apparatus as well as a drive apparatus including the bearing apparatus, which is capable of suppressing adhesion of a volatilized component to a magnetic disk or the like even when the grease composition is volatilized by application of the grease composition and the bearing, thereby suppressing occurrence of read/write errors of an HDD.
Solution
Object
Objective is to provide a grease composition for a pivot assembly and a pivot assembly bearing filled with the grease composition, and to provide a bearing apparatus as well as a drive apparatus including the bearing apparatus, which is capable of suppressing adhesion of a volatilized component to a magnetic disk or the like even when the grease composition is volatilized by application of the grease composition and the bearing, thereby suppressing occurrence of read/write errors of an HDD.
Solution
Provided are: a grease composition for a pivot assembly bearing including an aromatic ester-based base oil and a thickener, the aromatic ester-based base oil containing an aromatic ester compound having an ester group *—(CO)O— as a substituent on a ring, where * is a bonding site to an aromatic ring, and having an alkyl group with a total of 8 or more carbon atoms bonded to an oxygen atom of the ester group; a pivot assembly bearing filled with the grease composition for pivot assembly bearing; a bearing apparatus including the pivot assembly bearing; and a disk drive apparatus equipped with the bearing apparatus.
C10M 169/00 - Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
C10M 115/08 - Lubricating compositions characterised by the thickener being a non-macromolecular organic compound other than a carboxylic acid or salt thereof containing nitrogen
C10M 129/44 - Carboxylic acidsSalts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having 8 or more carbon atoms containing hydroxy groups
C10M 129/76 - Esters containing free hydroxy or carboxyl groups
C10M 133/12 - Amines, e.g. polyalkylene polyaminesQuaternary amines having amino groups bound to a carbon atom of a six-membered aromatic ring
C10M 133/40 - Six-membered ring containing nitrogen and carbon only
C10M 141/10 - Lubricating compositions characterised by the additive being a mixture of two or more compounds covered by more than one of the main groups , each of these compounds being essential at least one of them being an organic phosphorus-containing compound
C10N 20/00 - Specified physical properties of component of lubricating compositions
C10N 30/06 - OilinessFilm-strengthAnti-wearResistance to extreme pressure
C10N 30/10 - Inhibition of oxidation, e.g. anti-oxidants
C10N 50/10 - Form in which the lubricant is applied to the material being lubricated semi-solidForm in which the lubricant is applied to the material being lubricated greasy
G11B 5/00 - Recording by magnetisation or demagnetisation of a record carrierReproducing by magnetic meansRecord carriers therefor
This pulse wave measuring device is attachable to a subject to be measured, and comprises: a pulse wave sensor having a strain gauge; a sensor placement member in which the pulse wave sensor is arranged; a first curved member having one end connected to the sensor placement member; a second curved member having one end connected to the sensor placement member; and a band member connected to another end of the first curved member and another end of the second curved member, wherein the first curved member and the second curved member are connected to opposite sides across the sensor placement member in a plan view, and wherein a curvature of the first curved member is different from a curvature of the second curved member.
A61B 5/00 - Measuring for diagnostic purposes Identification of persons
G01L 1/22 - Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluidsMeasuring force or stress, in general by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress using resistance strain gauges
34.
MOTOR DRIVE CONTROL DEVICE, MOTOR UNIT, AND MOTOR DRIVE CONTROL METHOD
To satisfy a desired air flow-static pressure characteristic while satisfying constraints of a power supply capacity and without over-limiting the drive current. A motor drive control device includes: a control circuit unit configured to generate a drive control signal (Sd) for controlling an actual rotation speed of a motor based on a speed command signal indicating a target rotation speed of the motor; and a motor drive unit configured to drive the motor based on the drive control signal (Sd). The control circuit unit includes a power control unit configured to enable selection of one of: a speed feedback control mode to generate the drive control signal (Sd) so that the actual rotation speed of the motor matches the target rotation speed; and a current feedback control mode to generate the drive control signal (Sd) so that a drive current of the motor matches a target current. The power control unit sets a current threshold corresponding to a power supply voltage (Vdd) supplied from the outside as the target current, and when detecting that the drive current is not less than the current threshold, switches from the speed feedback control mode to the current feedback control mode.
H02P 29/032 - Preventing damage to the motor, e.g. setting individual current limits for different drive conditions
H02P 23/14 - Estimation or adaptation of motor parameters, e.g. rotor time constant, flux, speed, current or voltage
H02P 27/06 - Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using DC to AC converters or inverters
A planar illumination device of an embodiment includes a light guide plate for emitting light incident from a light incident side surface from one principal surface of two principal surfaces, and a plurality of light sources arranged in a longitudinal direction of the light incident side surface and emitting light incident on the light incident side surface. The light sources include a light emitting element for emitting first light and a wavelength conversion material for emitting second light having a wavelength longer than a wavelength of the first light by the light emitted by the light emitting element. The light incident side surface is formed with a plurality of rows of first irregularities extending in a width direction of the light guide plate and diffusing incident light in a thickness direction of the light guide plate in a partial range in the thickness direction of the light guide plate, the range opposing the light emitting element.
A vehicle power supply device includes a backup power supply to which power is supplied from a battery mounted in the vehicle, a boost unit that boosts a voltage of the backup power supply to a predetermined boost voltage, a motor drive unit that is connected to the battery and the boost unit and is capable of driving the electric motor by being supplied with power from one of the battery and the boost unit, a first switching unit that conducts or interrupts power supply between the battery and the motor drive unit, a control unit that controls the first switching unit, and a second switching unit that is provided between the boost unit and the first switching unit and turns off the first switching unit when a voltage output from the boost unit becomes equal to or higher than the predetermined boost voltage
E05B 81/82 - Electrical circuits characterised by the power supplyEmergency power operation using batteries other than the vehicle main battery
B60R 16/033 - Electric or fluid circuits specially adapted for vehicles and not otherwise provided forArrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric for supply of electrical power to vehicle subsystems characterised by the use of electrical cells or batteries
H02J 9/06 - Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over
A stimulus applying device includes an actuator and a housing. In the actuator, a head part of a protrusion part that protrudes from a movable main body is disposed outside a fixed body, and the movable main body is housed inside the fixed body. The actuator moves the movable main body along the protruding direction of the protrusion part by electromagnetic drive, and applies a stimulus to the surface of a subject by the movement. The housing includes a main surface that extends around the head part in directions intersecting the movement direction. The main surface regulates the position of the subject surface in the movement direction.
H02K 33/16 - Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with polarised armatures moving in alternate directions by reversal or energisation of a single coil system
G06F 3/01 - Input arrangements or combined input and output arrangements for interaction between user and computer
H02K 5/04 - Casings or enclosures characterised by the shape, form or construction thereof
38.
ROLLING BEARING, PIVOT ASSEMBLY BEARING, AND DISK DRIVE APPARATUS
The application provides a rolling bearing including a grease composition, the grease composition containing a base oil and a thickener, the base oil containing an aromatic ester-based base oil, and the thickener containing a urea-based thickener, where the grease composition has a storage elastic modulus at 25° C. of from 1200 to 3000 Pa as measured under conditions of a film thickness of 1 mm and a shear strain of 1% and has an oil separation amount at 80° C. of from 200 to 270 mm2/mg; a pivot assembly bearing apparatus including the rolling bearing; and a disk drive apparatus including the pivot assembly bearing apparatus.
C10M 169/00 - Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
C10M 115/08 - Lubricating compositions characterised by the thickener being a non-macromolecular organic compound other than a carboxylic acid or salt thereof containing nitrogen
C10M 133/40 - Six-membered ring containing nitrogen and carbon only
C10M 135/26 - ThiolsSulfidesPolysulfides containing sulfur atoms bound to acyclic or cycloaliphatic carbon atoms containing carboxyl groupsDerivatives thereof
C10M 141/10 - Lubricating compositions characterised by the additive being a mixture of two or more compounds covered by more than one of the main groups , each of these compounds being essential at least one of them being an organic phosphorus-containing compound
C10N 20/00 - Specified physical properties of component of lubricating compositions
C10N 50/10 - Form in which the lubricant is applied to the material being lubricated semi-solidForm in which the lubricant is applied to the material being lubricated greasy
F16C 33/66 - Special parts or details in view of lubrication
An absolute encoder includes a spindle gear fixed to a motor shaft, a permanent magnet provided on the spindle gear, and a first driven gear having a center axis perpendicular to a center axis of a worm gear portion, and engaging the worm gear portion. The absolute encoder includes a second driving gear provided coaxially with the first driven gear and rotating according to a rotation of the first driven gear, and a second driven gear having a center axis perpendicular to the center axis of the first driven gear, and engaging the second driven gear. The spindle gear includes a magnet holder which is fit onto a tip end of the motor shaft, coaxially with the motor shaft, and a resin gear portion provided with the worm gear portion on an outer side in a radial direction.
G01D 5/14 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
G01D 5/04 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using mechanical means using leversMechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using mechanical means using camsMechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using mechanical means using gearing
Provided is a fixing member used in a support structure (100) for a bed. The support structure includes a lower frame (10), an upper frame (20), a raising/lowering mechanism (30) configured to raise and lower the upper frame with respect to the lower frame and including a support shaft (312) extending in a width direction of the bed, and a supported member (221, 222) fixed to the upper frame and supported by the support shaft. The support shaft moves in a longitudinal direction of the bed while supporting the supported member when the upper frame is raised and lowered. The fixing member includes a plurality of fixing tools (S11 to S14) configured to fix the supported member to the upper frame. Each of the plurality of fixing tools includes a flexure element (SB) fixed to the upper frame at one end and fixed to the supported member at the other end, and a strain gauge (SG) attached to the flexure element.
A61G 7/012 - Beds specially adapted for nursingDevices for lifting patients or disabled persons having adjustable mattress frame raising or lowering of the whole mattress frame
A61G 13/06 - Adjustable operating tablesControls therefor raising or lowering of the whole table surface
41.
COMMUNICATION APPARATUS, INFORMATION PROCESSING SYSTEM, AND INFORMATION PROCESSING METHOD
A communication apparatus receives status information including a value of a status regarding reception or non-reception of a beacon signal. The status is associated with each of pieces of identification information 25_1 to 25_n. When receiving the status information after transmitting a beacon signal, the communication apparatus selects, based on the status information, another identification information different from identification information of the beacon signal transmitted most recently and transmits a beacon signal including the selected identification information, instead of the beacon signal transmitted most recently.
A power supply device includes a storage circuit including a first node connected to a power supply, a second node connected to a ground, and an electrical double layer capacitor between the first node and the second node; a discharge circuit including a discharging resistor connected between the first node and the ground; and a power supply controller configured to measure a voltage at the first node and control the discharge circuit. The power supply controller is configured to perform a procedure of starting discharge of the storage circuit by the discharge circuit in response to detecting transfer to a suspended state, and stopping the discharge by the discharge circuit in a case in which the voltage at the first node is lower than a first standard voltage value.
H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
H02J 7/34 - Parallel operation in networks using both storage and other DC sources, e.g. providing buffering
H02J 9/06 - Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over
43.
POWER SUPPLY DEVICE, AND CONTROL METHOD FOR POWER SUPPLY DEVICE
A power supply device (1) of the present invention includes a storage circuit (10) including electrical double layer capacitor (11,12) between first node connected to a power supply (100), which is an in-vehicle battery, and second node grounded; a charge circuit (20) connected to the first node and configured to charge the storage circuit (10); and a power supply controller (50) configured to measure voltage at the first node and control the charge circuit (20). The power supply controller (50) performs procedure of causing the charge circuit (20) to charge the storage circuit (10) and computing first capacitance value and first equivalent series resistance value of the electrical double layer capacitor (11,12) based on voltage measured at the first node, upon determining the voltage at the first node is lower than a threshold voltage value, that is, determining a stop period of a vehicle is longer than a threshold period.
A rotary apparatus includes a motor, a plurality of gears, and a sensor configured to detect a rotation angle of one of the plurality of gears. The sensor includes a first connection terminal electrically connecting to the outside, and a base portion. The first connection terminal is disposed at the base portion. A second connection terminal is disposed at the base portion.
A vehicle power supply device includes a backup power supply to which power is supplied from a battery mounted in the vehicle, a boost unit that boosts a voltage of the backup power supply to a boost voltage, a motor drive unit that is connected to the battery and the boost unit and is capable of driving an electric motor by being supplied with power from either the battery or the boost unit, whichever has a higher voltage, and a control unit that controls operation of the boost unit. When it is determined that a predetermined boost condition is satisfied, the control unit controls the boost unit to boost the voltage of the backup power supply to a voltage higher than a rated voltage of the battery.
B60R 16/033 - Electric or fluid circuits specially adapted for vehicles and not otherwise provided forArrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric for supply of electrical power to vehicle subsystems characterised by the use of electrical cells or batteries
E05B 81/82 - Electrical circuits characterised by the power supplyEmergency power operation using batteries other than the vehicle main battery
A blower case configured to accommodate an impeller and a bracket attached to an outer periphery of the blower case and configured to fix the blower device at a mounting target are included. At an outer peripheral surface of the blower case, a pair of rail parts extending in a direction of a rotation axis of the impeller and an engagement rib connecting the rail parts to each other at an intermediate portion in a longitudinal direction of the rail parts are provided. At the bracket, a pair of grooves fitted with the pair of rail parts and slidable in the direction of the rotation axis and a claw part disposed between the pair of grooves so as to be engaged with the engagement rib in the direction of the rotation axis are provided. A plurality of pairs of rail parts are provided along the outer periphery of the blower case, and the bracket can be selectively attached to the pair of rail parts.
A present strain gauge module includes a film-like strain detection device that is to be attached to a measurement target and includes a terminal on an upper surface thereof, and is configured to detect strain generated in the measurement target; and a thin-plate metal substrate including an upper surface and a lower surface. The film-like strain detection device is attached to the upper surface of the thin-plate metal substrate via an adhesive. The lower surface of the thin-plate metal substrate serves as an attachment surface that is to be attached to the measurement target.
G01B 7/16 - Measuring arrangements characterised by the use of electric or magnetic techniques for measuring the deformation in a solid, e.g. by resistance strain gauge
According to the present disclosure, a strain gauge includes: a flexible substrate; and a resistor formed of a film containing Cr, CrN, and Cr2N, on the substrate, and, in this strain gauge, the strain gauge is attached to a measurement object such that a grid direction of the resistor is orthogonal to a strain direction of the measurement object.
G01L 1/22 - Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluidsMeasuring force or stress, in general by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress using resistance strain gauges
G01B 7/16 - Measuring arrangements characterised by the use of electric or magnetic techniques for measuring the deformation in a solid, e.g. by resistance strain gauge
49.
ROTATION DETECTION DEVICE, ROTATION DETECTION METHOD, AND ROTATION DETECTION PROGRAM
A rotation detection device includes: a first comparator configured to generate a first digital signal that indicates a magnitude relationship between a first voltage, which is output from a potentiometer in accordance with an amount of rotation of a rotating body, and a threshold voltage; a second comparator configured to generate a second digital signal that indicates a magnitude relationship between a second voltage, which is obtained by dividing the first voltage, and the threshold voltage; and a controller configured to detect a direction of rotation and a number of complete turns of the rotating body based on transition edges of the first digital signal and transition edges of the second digital signal. By this means, even when the rotating body rotates while not being driven, it is possible to detect the number of complete turns of the rotating body.
G01D 5/165 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying resistance by relative movement of a point of contact and a resistive track
G01B 7/00 - Measuring arrangements characterised by the use of electric or magnetic techniques
50.
LOCK CONTROL SYSTEM, PROGRAM, TERMINAL DEVICE, AND LOCK CONTROL METHOD
In a lock control system for controlling an electronic lock, the lock control system includes an electronic lock and a program executed by a terminal device that controls the electronic lock, in order to reduce a malfunction due to false detection in position information. The program causes the terminal device to perform a distance detection process of detecting a distance between the electronic lock and the terminal device, an unlocking control process of controlling unlocking of the electronic lock based on the distance, a determination process of determining whether the distance is falsely detected based on a predetermined signal that the electronic lock transmits via near-field communication, and a stop process of stopping the unlocking control process upon determining that the distance is falsely detected.
G07C 9/29 - Individual registration on entry or exit involving the use of a pass the pass containing active electronic elements, e.g. smartcards
G06K 7/10 - Methods or arrangements for sensing record carriers by electromagnetic radiation, e.g. optical sensingMethods or arrangements for sensing record carriers by corpuscular radiation
A planar illumination device of an embodiment includes substrates, a reflector plate, and a plurality of optical sheets. The substrates are provided with a plurality of light sources and have a planar shape or a curved shape. The reflector plate is disposed on the substrates and has reflection surfaces surrounding the light sources. The plurality of optical sheets is disposed at the emission side of the reflector plate. The reflector plate includes flat parts on one side of a frame of the reflector plate. The optical sheets include respective a fixing region. The fixing region of the optical sheets is fixed to the flat parts. The flat parts on the side are sandwiched between both sides respectively provided with a pin protruding in a thickness direction. The optical sheets are provided with holes at positions corresponding to the pins to engage with the pins.
G02F 1/00 - Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulatingNon-linear optics
To provide an axial fan motor increasing the mounting area of a circuit board and further improving heat dissipation as compared with the axial fan motor in the related art. A fan device as an axial fan motor includes: a casing having a hollow tubular shape and provided with an intake opening at one end in an axial direction and an exhaust opening at another end in the axial direction; an impeller including a plurality of blades and accommodated in the casing; a motor accommodated in the casing and configured to rotate the impeller; and a plurality of circuit boards arranged along the axial direction at a side close to exhaust opening in the casing.
A load detection device (100, 200) installed under a caster of a bed includes a placement unit (30, 230), the caster being placed on the placement unit, a load detection unit (10, 20) configured to detect a load applied to the placement unit, and a guide plate (40) having an annular shape and surrounding the placement unit. The guide plate is provided with a slope (SL) configured to guide the caster to the placement unit and a handle (HD) for moving the load detection device. The slope includes a first slope provided adjacent to the placement unit in a predetermined direction and a second slope provided adjacent to the placement unit in a direction orthogonal to the predetermined direction.
G01L 1/22 - Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluidsMeasuring force or stress, in general by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress using resistance strain gauges
A planar illumination device of an embodiment includes a plurality of light sources, a substrate, and a reflector. The light sources are bidimensionally disposed on the substrate. The reflector is provided with a segment including a hole corresponding to each of the light sources and a reflecting surface extending obliquely from a periphery of the hole, is provided with outer walls at an entire outer peripheral portion of the reflector, and is disposed at an emission side of the substrate. In the segment disposed at an irregular portion of an outer peripheral portion of the reflector and unconfigurable into a predetermined shape by the outer walls, surfaces of the outer walls opposing the substrate are provided with recessed portions for accommodating the light sources or adjusting the amount of light.
F21Y 105/16 - Planar light sources comprising a two-dimensional array of point-like light-generating elements characterised by the overall shape of the two-dimensional array square or rectangular, e.g. for light panels
A distance estimation device includes circuitry that estimates a distance between an image acquiring device and a marker in a first axis direction, based on coordinates of an upper end portion and a lower end portion of the marker and a length between the upper end portion and the lower end portion.
H01Q 3/36 - Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elementsArrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the distribution of energy across a radiating aperture varying the phase by electrical means with variable phase-shifters
A motor includes: a rotor including a yoke, a first magnet, and a second magnet opposing the first magnet; and a stator. The yoke includes a hole and a frame surrounding the hole. The first magnet is disposed in the hole of the yoke. The second magnet includes a first surface opposing the frame of the yoke in the peripheral direction and a second surface opposing the stator in the radial direction.
Provided is a rotor allowing effectively utilizing magnetic flux generated from a magnet, a motor using the rotor, and an electronic device. Provided are a rotor, a motor using the rotor, and an electronic device, the rotor including a plurality of magnetic bodies stacked in an axial direction and a plurality of magnets. The magnetic body includes: an annular part; a plurality of magnetic pole pieces extending in a radial direction; and a plurality of coupling parts configured to couple each of the plurality of magnetic pole pieces and the annular part. The plurality of magnets are each disposed between two adjacent magnetic pole pieces among the plurality of magnetic pole pieces in a circumferential direction. The coupling part extends with both components including a component in the radial direction and a component in the circumferential direction.
H02K 1/276 - Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]
H02K 21/16 - Synchronous motors having permanent magnetsSynchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures having annular armature cores with salient poles
Provided are a base member at least partially covered with a coating film, the coating film being an electrodeposition coating film containing no carbon black, a spindle motor including the base member, and a disk drive apparatus including the spindle motor.
In a motor of an embodiment, an insulator includes a wall part having two recess parts (an insulator-side first recess part and an insulator-side second recess part) opposed to two drawing positions of a conducting wire drawn out from a coil in a radial direction. One of the two drawing positions is located at an outer peripheral portion of the coil, and the other is located at an inside of the outer peripheral portion. A substrate includes a substrate-side first recess part and a substrate-side second recess part recessed at an inside in the radial direction from an outer peripheral end and adjacent to each other in a circumferential direction. The substrate-side first recess part is opposed to the insulator-side first recess part, and the substrate-side second recess part is opposed to the insulator-side second recess part.
H02K 3/34 - Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation
A power supply device includes an electrical storage device and a bidirectional buck-boost converter having a charging function of starting charging of the electrical storage device based on input power from a power system of a vehicle, upon occurrence of a condition in which a voltage of the electrical storage device decreases to a first threshold and of stopping the charging of the electrical storage device, upon occurrence of a condition in which the voltage of the electrical storage device increases to a second threshold that is greater than the first threshold. The bidirectional buck-boost converter has a boost function of stepping up the voltage of the electrical storage device. The power supply device includes a control circuit configured to cause the boost circuit to perform a boost operation such that a boosted voltage that is higher than the voltage of the electrical storage device is supplied to a load device, and such that the boosted voltage is a constant voltage.
B60R 16/033 - Electric or fluid circuits specially adapted for vehicles and not otherwise provided forArrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric for supply of electrical power to vehicle subsystems characterised by the use of electrical cells or batteries
E05F 15/611 - Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings
H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
This vibration device comprises: a vibration actuator which drives and vibrates a movable body supported in an elastically vibratable manner with respect to a fixed body, in one direction of the vibration directions of the movable body; and an accommodation part which seals and accommodates therein the vibration actuator, wherein the vibration actuator is attached to an inner wall of the accommodation part with a support member therebetween, the support member extending in one direction. The support member supports, with respect to the inner wall, one among the movable body and the fixed body of the vibration actuator.
H02K 33/18 - Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with coil systems moving upon intermittent or reversed energisation thereof by interaction with a fixed field system, e.g. permanent magnets
A rotating device according to the present invention comprises a motor, a connection terminal electrically connecting the motor with an external device, and a housing accommodating the motor and the connection terminal. The connection terminal includes a bent portion bent in a direction crossing an insertion direction or a removal direction of the connection terminal. The housing includes a contact surface in contact with the bent portion.
A rolling bearing includes an outer ring and an inner ring, a rolling element disposed in a rollable manner between the outer ring and the inner ring, a cage holding the rolling element, and a shield. The outer ring includes a raceway surface supporting the rolling element in a rollable manner, recess parts formed at both direction sides in an axial direction with respect to the raceway surface, and a ridge part formed between the recess part and the raceway surface. The recess part includes a placement surface for placing a grease, and a first inclined part formed between the placement surface and the ridge part and approaching an outer peripheral surface of the outer ring toward an outer side in the axial direction.
This vibration transmitting device comprises: a vibrating actuator which causes a movable body, which is supported in such a way as to be capable of vibrating elastically with respect to a fixed body, to vibrate by driving the movable body in one direction of the vibration direction of said movable body; and an accommodating unit for internally accommodating the vibrating actuator. The accommodating unit has an opening portion exposing at least a portion of the movable body such that the movable body comes into contact with an object to which vibrations are to be imparted, and the vibration transmitting device is provided with a projecting portion which projects from the movable body to the exterior of the accommodating unit through the opening portion.
B06B 1/04 - Processes or apparatus for generating mechanical vibrations of infrasonic, sonic or ultrasonic frequency making use of electrical energy operating with electromagnetism
H02K 1/34 - Reciprocating, oscillating or vibrating parts of the magnetic circuit
H02K 33/18 - Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with coil systems moving upon intermittent or reversed energisation thereof by interaction with a fixed field system, e.g. permanent magnets
65.
STERILIZATION SYSTEM, STERILIZATION DEVICE, CONTROL DEVICE, CONTROL METHOD, AND CONTROL PROGRAM
A sterilization system of an embodiment includes a light source unit, a horizontal angle adjustment unit and/or a vertical angle adjustment unit, and a controller. The light source unit emits ultraviolet rays in a radiating form. The horizontal angle adjustment unit adjusts a horizontal angle of the light source unit by causing rotation of the light source unit in a horizontal direction. The vertical angle adjustment unit adjusts a vertical angle of the light source unit by causing rotation of the light source unit in a vertical direction. The controller captures a target of sterilization from a camera image, controls rotation of the horizontal angle adjustment unit and/or the vertical angle adjustment unit, and irradiates the target with the ultraviolet rays from the light source unit.
A vibration actuator comprising: a fixing body having a wound coil; a movable body housed in the fixing body, having a magnet and a yoke, and supported such that it vibrates inside the coil; and a pair of end portion members disposed at end portions of the fixing body and configured not to contact the movable body in a normal vibration range of the movable body but to contact the movable body at a time of impact to regulate a movement range of the movable body; wherein, each of the pair of end portion members includes an interference region that abuts against the movable body at the time of impact and restricts the movement range of the movable body, and a vent hole region that is located on an outer peripheral side of the interference region and includes a plurality of vent holes arranged in a circumferential direction.
H02K 33/18 - Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with coil systems moving upon intermittent or reversed energisation thereof by interaction with a fixed field system, e.g. permanent magnets
B06B 1/04 - Processes or apparatus for generating mechanical vibrations of infrasonic, sonic or ultrasonic frequency making use of electrical energy operating with electromagnetism
H02K 33/12 - Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with armatures moving in alternate directions by alternate energisation of two coil systems
An aerial display device of an embodiment includes a planar light-emitting body, a retroreflective sheet, and a half mirror. The planar light-emitting body includes a light-emitting portion. The retroreflective sheet is disposed at an emission surface side of the planar light-emitting body, and includes, at a position corresponding to the light-emitting portion, a plurality of through-holes representing a figure to be displayed in the air. The half mirror is disposed at an emission surface side of the retroreflective sheet.
G02B 30/56 - Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images the image being built up from image elements distributed over a 3D volume, e.g. voxels by projecting aerial or floating images
G02B 30/25 - Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer’s left and right eyes of the stereoscopic type using polarisation techniques
G06F 3/044 - Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
A sensor module includes a strain generating body that is made of metal, the strain generating body being adhered to an outer surface of a housing configured to house a battery; and a strain gauge including a Cr mixed phase film as a resistor, the strain gauge being provided on one side of the strain generating body, wherein on another side of the strain generating body, a plurality of adhesive regions separated from each other and adhered to the housing are defined, and the strain gauge is arranged on the one side of the strain generating body in a region that is not opposite to the adhesive regions.
G01L 1/22 - Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluidsMeasuring force or stress, in general by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress using resistance strain gauges
A speed reducer includes a sun gear, an internal gear, and a planetary gear meshing with the sun gear and the internal gear. The speed reducer includes two bearings disposed to sandwich the planetary gears in an axial direction. At least one of the two bearings is pressed against the planetary gears in an axial direction by the engaging members.
A motor drive control device includes a control circuit generating a drive control signal, and a drive circuit driving a motor. The drive circuit includes a plurality of switching legs each including a high-side transistor and a low-side transistor connected in series between a power line and a ground potential, and pull-up resistors each connected between the power line and a control electrode of the low-side transistor. The control circuit performs brake control to generate a drive control signal for turning off the high-side transistor and periodically switching the low-side transistor, when detecting a power supply voltage to be lower than a threshold voltage.
H02P 21/36 - Arrangements for braking or slowingFour quadrant control
H02P 21/00 - Arrangements or methods for the control of electric machines by vector control, e.g. by control of field orientation
H02P 25/03 - Synchronous motors with brushless excitation
H02P 27/08 - Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using DC to AC converters or inverters with pulse width modulation
71.
VIBRATION ACTUATOR AND VIBRATION PRESENTATION DEVICE
A vibration actuator includes a flat plate base part that accommodates a coil wound around a plate-shaped core in an internal opening; a plate-shaped body including a suction part made of a magnetic material, the plate-shaped body disposed to overlap the flat plate base part; and an elastic support part that arranges the suction part to face the plate-shaped core within the region of the internal opening and connects the plate-shaped body to the flat plate base part so as to be movable along a surface of the flat plate base part.
H02K 33/18 - Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with coil systems moving upon intermittent or reversed energisation thereof by interaction with a fixed field system, e.g. permanent magnets
G06F 3/01 - Input arrangements or combined input and output arrangements for interaction between user and computer
G06F 3/041 - Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
H01H 13/85 - Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard characterised by ergonomic functions, e.g. for miniature keyboardsSwitches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard characterised by operational sensory functions, e.g. sound feedback characterised by tactile feedback features
H02K 11/20 - Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
H02K 33/02 - Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with armatures moved one way by energisation of a single coil system and returned by mechanical force, e.g. by springs
72.
ANTENNA DEVICE, FEED SYSTEM, FEED DEVICE, AND FEED METHOD
To provide an antenna device capable of suppressing the spread of a reflected portion of a transmitted power signal to allow for reductions in an effect of interference on any other device that may exist around a given position.
To provide an antenna device capable of suppressing the spread of a reflected portion of a transmitted power signal to allow for reductions in an effect of interference on any other device that may exist around a given position.
An antenna device includes an array antenna; a phase adjuster configured to adjust phases of transmission power signals supplied by multiple antenna elements, with respect to a first axis; an image acquiring unit configured to acquire an image through a fisheye lens; a deriving unit configured to convert a first position of a marker that is included in the image acquired by the image acquiring unit, into a second position of polar coordinates on a first plane that includes the first axis and a second axis, the first position being used in the image acquiring unit; an acquiring unit configured to acquire, based on the second position, an elevation angle of a projected position that is obtained by projecting the first position onto a second plane including the first axis and a third axis, the elevation angle being relative to the third axis of the second plane; a storage that stores multiple sets of phase data for respective elevation angles, the phase data indicating phases for power that is from the antenna elements and that is received by a power receive, the phases being adjusted to be matched; and a controller configured to control the phase adjuster such that a direction of a beam, emitted by the array antenna based on retrieved phase data, defines the elevation angle for the second plane, the phase data being phase data relating to the elevation angles that are within a predetermined included angle range.
H02J 50/70 - Circuit arrangements or systems for wireless supply or distribution of electric power involving the reduction of electric, magnetic or electromagnetic leakage fields
G06T 7/246 - Analysis of motion using feature-based methods, e.g. the tracking of corners or segments
G06T 7/73 - Determining position or orientation of objects or cameras using feature-based methods
H01Q 3/36 - Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elementsArrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the distribution of energy across a radiating aperture varying the phase by electrical means with variable phase-shifters
H02J 50/23 - Circuit arrangements or systems for wireless supply or distribution of electric power using microwaves or radio frequency waves characterised by the type of transmitting antennas, e.g. directional array antennas or Yagi antennas
H02J 50/40 - Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting or receiving devices
H02J 50/80 - Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
H02J 50/90 - Circuit arrangements or systems for wireless supply or distribution of electric power involving detection or optimisation of position, e.g. alignment
To provide an antenna device capable of transmitting power stably.
To provide an antenna device capable of transmitting power stably.
An antenna device includes an adjuster to adjust phases of transmission power signals that are respectively supplied by multiple antenna elements, with respect to a first axis direction, an image acquiring unit to acquire an image; a deriving unit to convert a first position of a marker that is included in the image, into a second position of polar coordinates on a first plane that includes the first axis and a second axis, the first position being used in the image acquiring unit; an acquiring unit to acquire, based on the second position, an elevation angle of a projected position that is obtained by projecting the first position onto a second plane including the first axis and a third axis, the elevation angle being relative to the third axis of the second plane; a storage that stores multiple sets of phase data for respective elevation angles, the phase data being set such that phases of power that is received by the antenna elements are adjusted and matched; a controller to control the adjuster such that a direction of a beam defines the elevation angle for the second plane, based on phase data that is retrieved according to acquired elevation angle; and a power ramping unit to perform power ramping on at least one given transmission power signal.
G06T 7/66 - Analysis of geometric attributes of image moments or centre of gravity
G06T 7/73 - Determining position or orientation of objects or cameras using feature-based methods
H01Q 3/26 - Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elementsArrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the distribution of energy across a radiating aperture
H01Q 21/06 - Arrays of individually energised antenna units similarly polarised and spaced apart
H02J 50/40 - Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting or receiving devices
A rotor includes a rotor core, a magnet, and a cover. The rotor core includes an annular portion and a plurality of magnetic pole pieces. The magnet is disposed between two magnetic pole pieces adjacent to each other in a circumferential direction of the plurality of magnetic pole pieces. The cover covers an outer peripheral portion of the magnet, and is formed of a non-magnetic member or a member having magnetism lower than magnetism of the rotor core.
H02K 1/274 - Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
In a planar illumination device according to an embodiment, a reflector can be stably fixed to a substrate even when a temperature change occurs. A planar illumination device includes a substrate provided with a plurality of light sources at one surface side, a reflector provided at the one surface side of the substrate, a bottom frame provided at a surface side of the substrate opposite to the one surface side, a first fixing member configured to fix a center portion of the reflector in a longitudinal direction to the bottom frame, and a second fixing member configured to fix the one surface of the substrate and the reflector. A force of the second fixing member restricting the substrate and the reflector is greater at a center portion of the reflector 4 in the longitudinal direction than at a portion of the reflector 4 separated in the longitudinal direction from the center portion.
A blower device includes a blower casing, an impeller accommodated inside the blower casing, a motor provided at one end side in an axial direction of the blower casing and configured to rotate the impeller, and a connector housing including a plurality of connector pins configured to supply electric power to the motor. A water damage prevention cover configured to cover an upper side of the connector housing is fixed to the connector housing.
H02K 5/10 - Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. of water or fingers
F04D 25/06 - Units comprising pumps and their driving means the pump being electrically driven
H02K 5/22 - Auxiliary parts of casings not covered by groups , e.g. shaped to form connection boxes or terminal boxes
77.
ABSOLUTE ENCODER, ANGLE ERROR CORRECTION DEVICE IN ABSOLUTE ENCODER, AND METHOD FOR CORRECTING ANGLE ERROR IN ABSOLUTE ENCODER
To suppress a maximum value of an angle deviation regardless of the position of a rotating body at the time of start-up. An absolute encoder includes a sensor configured to generate a signal indicating a value of a predetermined physical quantity varying depending on a rotation of a rotating body, a computer configured to generate angle information indicating an angle of the rotating body on the basis of the signal the computer determines an offset value for correcting an angle deviation indicating a difference between an angle indicated by the angle information and an actual angle of the rotating body to reduce the angle deviation, on the basis of the angle information at the time of start-up and a predetermined coefficient, and the computer corrects the angle deviation by using the offset value. The coefficient is calculated on the basis of the angle deviation.
G01D 5/244 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means influencing characteristics of pulses or pulse trainsMechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means generating pulses or pulse trains
G01D 18/00 - Testing or calibrating apparatus or arrangements provided for in groups
Provided is a vibration presenting device includes an operation device; an electromagnetic actuator; and a control device. The electromagnetic actuator supports the operation device, and includes a base part formed in a plate shape, in which an electromagnet including a core and a coil is disposed; a movable part including a magnetic yoke disposed to face the electromagnet with a gap therebetween; and an elastic part configured to connect the base part and the movable part respectively such that the base part and the magnetic yoke are relatively displaced by energizing the electromagnet, wherein the movable part has, at a position opposite the coil, a shape into which a part of the coil can be inserted. The control device is configured to control the electromagnetic actuator to vibrate the operation device in a vibration direction by driving the operation device to one direction of the vibration direction.
B06B 1/04 - Processes or apparatus for generating mechanical vibrations of infrasonic, sonic or ultrasonic frequency making use of electrical energy operating with electromagnetism
B06B 1/02 - Processes or apparatus for generating mechanical vibrations of infrasonic, sonic or ultrasonic frequency making use of electrical energy
H02K 33/02 - Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with armatures moved one way by energisation of a single coil system and returned by mechanical force, e.g. by springs
H02P 25/032 - Reciprocating, oscillating or vibrating motors
The present strain gauge is a strain gauge installed on a Roberval-type strain generator, and includes a substrate having flexibility; and a resistor formed of a film that contains Cr, CrN, and Cr2N over the substrate, wherein a film thickness of the resistor is greater than or equal to 6 nm and less than or equal to 100 nm.
G01B 7/16 - Measuring arrangements characterised by the use of electric or magnetic techniques for measuring the deformation in a solid, e.g. by resistance strain gauge
G01G 3/14 - Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances wherein the weighing element is in the form of a solid body stressed by pressure or tension during weighing measuring variations of electrical resistance
80.
ROTOR, MOTOR USING THE ROTOR AND ELECTRONIC DEVICE
The present application provides a rotor, a motor using the rotor and an electronic device capable of effectively utilizing magnetic flux generated from a magnet. The rotor includes a rotor core including an annular portion and a plurality of magnetic pole pieces radially extending from the annular portion via a pair of joint portions, a plurality of first magnets disposed between the neighboring magnetic pole pieces in a circumferential direction, and a plurality of second magnets disposed between the pair of joint portions, in which each of the first magnets contacts side surfaces of two neighboring magnetic pole pieces in the circumferential direction and each of the second magnets contacts inner surfaces of the magnetic pole pieces in a radial direction.
H02K 1/276 - Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]
H02K 21/16 - Synchronous motors having permanent magnetsSynchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures having annular armature cores with salient poles
A base serves as a part of a housing of a hard disk drive device. The base includes a bottom plate part and a pivot shaft extending in a top-bottom direction. The pivot shaft includes a first shaft part formed integrally with the bottom plate part, and a second shaft part fixed to the first shaft part in a lower end region, a cover of the hard disk drive device being attached to the second part shaft in an upper end region.
The present vital sensor is a vital sensor configured to monitor a blood flow, and includes a strain generator to be attached to a measurement site in a subject, and a strain gauge disposed on the strain generator. The strain gauge includes three or more resistors. With a first direction being a direction in which a blood vessel extends in the measurement site and a second direction being a direction orthogonal to the first direction, the strain generator is attached to the measurement site so that positions of at least three of the resistors in the first direction are different from each other, and the positions of the at least three of the resistors in the second direction are different from each other.
A manufacturing method for a permanent magnet includes a magnetization step of magnetizing a to-be-magnetized object by a magnetizer including a field magnet unit having a plurality of permanent magnets for magnetization configured to generate a magnetic field on the to-be-magnetized object arranged at equal intervals and a heating unit having a heating surface opposing the to-be-magnetized object in an axial direction of the to-be-magnetized object and configured to heat the to-be-magnetized object. In the magnetization step, the to-be-magnetized object is disposed on the field magnet unit, the to-be-magnetized object is heated by the heating unit to a temperature equal to or higher than a Curie point of the to-be-magnetized object and lower than the Curie point of the permanent magnets for magnetization, and then the temperature is lowered to a temperature lower than the Curie point of the to-be-magnetized object, and a magnetization magnetic field is applied to the to-be-magnetized object by the permanent magnets for magnetization.
H01F 41/02 - Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformersApparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils or magnets
H01F 13/00 - Apparatus or processes for magnetising or demagnetising
A vibration actuator includes: a movable body which includes a stack formed by a magnet, a pair of magnetic cores and a pair of non-magnetic weights, is supported at both upper and lower sides of the movable body by a pair of leaf springs made of a magnetic material connected respectively to the pair of non-magnetic weights, and is operable to move vertically inside of a coil of a fixing body. The fixing body further includes a magnetic cylindrical body which is disposed outside of the coil, and has a length, the length being longer than a distance between upper and lower ends of the pair of magnetic cores and shorter than a distance between the pair of leaf springs.
H02K 33/06 - Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with armatures moved one way by energisation of a single coil system and returned by mechanical force, e.g. by springs wherein the frequency of operation is determined by the frequency of uninterrupted AC energisation with polarised armatures
A rolling bearing includes an outer ring having a predetermined rotation axis; an inner ring disposed coaxially with the outer ring and situated on an inner peripheral side of the outer ring; multiple rolling elements disposed between the outer ring and the inner ring; and a strain gauge disposed on an outer peripheral surface of the outer ring or an inner peripheral surface of the inner ring. The strain gauge includes three or more detector elements that are disposed on the outer peripheral surface of the outer ring or the inner peripheral surface of the inner ring, and the three or more detector elements include at least two detector elements at different locations in a circumferential direction of the outer ring or the inner ring, the at least two detector elements being situated at different locations in a direction of the rotation axis.
To appropriately detect an abnormal state of a motor without monitoring air pressure. A motor drive control device includes a monitoring control unit for setting a physical quantity related to operation of a drive-target motor as a monitoring parameter, and monitoring an operation state of the drive-target motor based on measurement data of the monitoring parameter and a reference value of the monitoring parameter. The monitoring control unit determines whether the drive-target motor is in an abnormal state based on a comparison result between a deviation of the measured value from the reference value of the monitoring parameter in the drive-target motor and a deviation of the measured value from the reference value of the monitoring parameter in another motor acquired by a communication unit.
A biological information display system for displaying biological information of a subject on a bed (BD), includes: a biological signal acquisition unit configured to acquire a biological signal of the subject; a biological information acquisition unit configured to acquire the biological information of the subject based on the biological signal; and a display control unit configured to display the biological information at a display unit. The display control unit displays past information at the display unit during a period when the biological information acquisition unit cannot acquire the biological information, together with time information indicating a time when the past information is acquired, the past information being the biological information acquired before the period.
To provide a load detector with performance capable of being improved. A load detector 1, 1A includes a flexure element 20, a base part 10 supporting the flexure element 20, at least one strain gauge 24 attached to an inner surface 22a of a flexure part 22 constituting the flexure element 20, and a stopper part 14 attached to the base part 10, receiving the inner surface 22a of the flexure part 22 when the flexure part 22 is deformed, and regulating the deformation of the flexure part 22. A distance D between the stopper part 14 and the inner surface 22a of the flexure part 22 is adjustable.
G01L 1/22 - Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluidsMeasuring force or stress, in general by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress using resistance strain gauges
The invention relates to an actuating drive and to a guiding element for use in an actuating drive. The actuating drive according to the invention includes an electric motor, comprising a rotor rotatably supported on a rotor axle and an output gear mechanically coupled to the rotor. The actuating drive further includes a guiding element comprising a guide configured to radially guide the output gear relative to an output axis. The guiding element also includes a first axle receiver configured to receive a distal end of the rotor axle. The guiding element also includes a second axle receiver configured to receive a central portion of the transmission axle.
Provided are a base member for a heat-assisted magnetic recording disk drive apparatus, the base member including: a coating film coating at least a part of the base member, in which the coating film is an overbaked epoxy resin-containing electrodeposition coating film, a spindle motor including the base member, and a method for manufacturing the base member.
G11B 5/31 - Structure or manufacture of heads, e.g. inductive using thin film
C09D 5/44 - Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects producedFilling pastes for electrophoretic applications
G11B 5/00 - Recording by magnetisation or demagnetisation of a record carrierReproducing by magnetic meansRecord carriers therefor
91.
BODILY VIBRATION GENERATION DEVICE AND BODILY VIBRATION PRESENTATION APPARATUS
A sensory vibration generation apparatus includes an electromagnetic actuator that includes: a plate-shaped base part on which an electromagnet consisting of a core and a coil is arranged, a movable body including a magnetic yoke disposed opposite the electromagnet with a gap and the movable body having a shape that allows a portion of the coil to be inserted at a position opposite to the coil, and an elastic body connected to each of the plate-shaped base part and the movable body so that the plate-shaped base part and the magnetic yoke are displaced relative to each other by energizing the electromagnet, wherein the electromagnetic actuator vibrates in one direction of a vibration direction with an input driving signal to the coil. The apparatus further includes a rectifier configured to acquire the driving signal by performing half-wave rectification on an alternating current signal.
A battery pack includes a battery; and a sensor configured to detect a state of the battery. The sensor includes an insulating layer, and a resistor including a plurality of first resistive portions arranged side by side on one side of the insulating layer, a longitudinal direction of the plurality of first resistive portions being directed to a first direction, and the plurality of first resistive portions being not electrically coupled to each other, and a plurality of second resistive portions arranged side by side on another side of the insulating layer, a longitudinal direction of the plurality of second resistive portions being directed to a second direction intersecting with the first direction, and the plurality of second resistive portions being not electrically coupled to each other. The sensor detects the state of the battery as a change in a resistance value of the resistor.
H01M 10/48 - Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
G01B 7/16 - Measuring arrangements characterised by the use of electric or magnetic techniques for measuring the deformation in a solid, e.g. by resistance strain gauge
G01L 1/22 - Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluidsMeasuring force or stress, in general by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress using resistance strain gauges
H01M 10/42 - Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
H01M 50/213 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for cells having curved cross-section, e.g. round or elliptic
H01M 50/528 - Fixed electrical connections, i.e. not intended for disconnection
To provide a feed device and a feed method capable of both powering a specific power receiver that requires a large amount of received power, and of powering a power receiver other than the specific power receiver can be provided.
To provide a feed device and a feed method capable of both powering a specific power receiver that requires a large amount of received power, and of powering a power receiver other than the specific power receiver can be provided.
A feed device repeats a frame including multiple subframes to control phases of power transmission signals from multiple first antennas located around each of multiple first power receivers, such that for one subframe, the phases sequentially change while maintaining a phase relation between the power transmission signals, so as to match the phases of the power transmission signals that one of the multiple first power receivers receives from the multiple first antennas, which are located around the one of the multiple first power receivers, and such that for the other subframe, the phases sequentially change while maintaining the phase relation between power transmission signals, so as to match the phases of the power transmission signals that the other first power receiver of the multiple first power receivers receives from the multiple first antennas located around the other first power receiver of the multiple first power receivers. The feed device sequentially changes the phases of power transmission signals that are transmitted from one or more second antennas.
H01Q 21/22 - Antenna units of the array energised non-uniformly in amplitude or phase, e.g. tapered array or binomial array
H01Q 23/00 - Antennas with active circuits or circuit elements integrated within them or attached to them
H02J 50/23 - Circuit arrangements or systems for wireless supply or distribution of electric power using microwaves or radio frequency waves characterised by the type of transmitting antennas, e.g. directional array antennas or Yagi antennas
H02J 50/27 - Circuit arrangements or systems for wireless supply or distribution of electric power using microwaves or radio frequency waves characterised by the type of receiving antennas, e.g. rectennas
H02J 50/40 - Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting or receiving devices
H02J 50/80 - Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
H02J 50/90 - Circuit arrangements or systems for wireless supply or distribution of electric power involving detection or optimisation of position, e.g. alignment
94.
COMMUNICATION SYSTEM, DIAGNOSTIC DEVICE, AND DIAGNOSTIC METHOD
Failure prediction of a slave device mounted with a storage device having a small storage capacity is realized in a communication system. A communication system including a drive control device, a diagnostic device, and a network is provided. The drive control device includes a control information acquisition unit for acquiring control information for controlling driving of the motor from a higher-level device, a drive control unit for controlling driving of the motor in accordance with the control information, and a transmission unit for transmitting operation result information to the network, the operation result information including information about a drive amount of the motor and a step-out of the motor. The diagnostic device includes an information acquisition unit for acquiring the operation result information and the control information, a failure prediction unit for predicting a failure of the motor based on the operation result information and the control information.
H02P 29/024 - Detecting a fault condition, e.g. short circuit, locked rotor, open circuit or loss of load
H04L 67/12 - Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
95.
ROTATION DETECTION DEVICE, ROTATION DETECTION METHOD, AND ROTATION DETECTION PROGRAM
A rotation detection device includes: a comparator configured to generate a digital signal that indicates a magnitude relationship between a voltage, which is output from a potentiometer in accordance with an amount of rotation of a rotating body, and a threshold voltage; and a controller configured to detect a number of complete turns of the rotating body based on transition edges of the digital signal. By this means, the number of complete turns of the rotating body can be detected through a simple process, so that the size of the rotation detection program can be reduced.
G01B 7/30 - Measuring arrangements characterised by the use of electric or magnetic techniques for measuring angles or tapersMeasuring arrangements characterised by the use of electric or magnetic techniques for testing the alignment of axes
G01D 5/16 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying resistance
A planar illumination device of an embodiment includes a substrate, a first optical element, and a second optical element. A plurality of light sources are two dimensionally disposed at the substrate. The first optical element is disposed at an emission side of the plurality of light sources, and condenses light emitted from the plurality of light sources. The second optical element inclines a light distribution of the light condensed by the first optical element with respect to the first axial direction.
An influence of use orientation on detection accuracy is reduced. A magnetism detection device includes a magnet (Mr) magnetized, an angle sensor (Sr) as a magnetic sensor configured to detect a magnetic flux from the magnet (Mr), a magnet holder holding the magnet (Mr), and a second layshaft gear shaft. The magnet holder is rotatably supported on the second layshaft gear shaft. The second layshaft gear shaft is made of a magnetic material. An attractive force due to a magnetic force is generated between the magnet (Mr) and the second layshaft gear shaft in a direction of a rotation axis of the magnet holder.
G01B 7/30 - Measuring arrangements characterised by the use of electric or magnetic techniques for measuring angles or tapersMeasuring arrangements characterised by the use of electric or magnetic techniques for testing the alignment of axes
Shielding members having different thicknesses can be easily attached. A magnetism detection device includes a magnet (Mr) magnetized, an angle sensor (Sr) as a magnetic sensor configured to detect a magnetic flux from the magnet (Mr), a magnet holder holding the magnet (Mr), and a second layshaft gear shaft. The magnetism detection device includes a case including a plurality of outer wall portions and a lid portion and configured to accommodate the magnet (Mr) and the magnetic sensor (Sr) inside and a shielding member having a flat plate shape and a shape corresponding to the lid portion and attached to the lid portion. The shielding member includes a protruding portion protruding outward from an outer peripheral portion. The case includes a recessed portion opening inward at an end portion outside of the lid portion and configured to accommodate the protruding portion. The recessed portion includes a plurality of sidewall portions having different widths and a plurality of upper wall portions having different heights.
G01B 7/30 - Measuring arrangements characterised by the use of electric or magnetic techniques for measuring angles or tapersMeasuring arrangements characterised by the use of electric or magnetic techniques for testing the alignment of axes
G01D 5/14 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
A pulse wave sensor includes a strain generating body with a circular opening and a strain gauge provided on the strain generating body and including a Cr mixed phase film as a resistor, wherein a diameter of the circular opening is set to d [mm] and a thickness of the strain generating body is set to t [mm], wherein when a material of the strain generating body is SUS and d is 32, a required range of t is 0.059≤t≤0.124; wherein when the material is SUS and d is 22, a required range of t is 0.046≤t≤0.099; wherein when the material is SUS and d is 13, a required range of t is 0.030≤t≤0.067; wherein when the material is SUS and d is 7, a required range of t is 0.026≤t≤0.034; wherein when the material is copper and d is 32, a required range of t is 0.084≤t≤0.166; wherein when the material is copper and d is 22, a required range of t is 0.066≤t≤0.132; wherein when the material is copper and d is 13, a required range of t is 0.044≤t≤0.088; wherein when the material is copper and d is 7, a required range of t is 0.032≤t≤0.050; wherein when the material is aluminum and d is 32, a required range of t is 0.097≤t≤0.212; wherein when the material is aluminum and d is 22, a required range of t is 0.079≤t≤0.168; wherein when the material is aluminum and d is 13, a required range of t is 0.050
G01L 1/22 - Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluidsMeasuring force or stress, in general by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress using resistance strain gauges
G01L 5/1627 - Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring several components of force using variations in ohmic resistance of strain gauges
100.
RARE-EARTH IRON-BASED RING MAGNET AND METHOD FOR MANUFACTURING SAME
A method for manufacturing a rare-earth iron-based ring magnet includes: (a) obtaining a rare-earth iron-based magnet powder; (b) preparing a compound; (c) forming a green body; (d) inserting the green body into a composite mold, setting the composite mold in a spark plasma sintering (SPS) apparatus, and degreasing the green body by energization at a predetermined current density while applying a pressure to the green body under reduced pressure to obtain a degreased body; and (e) sintering the degreased body by energization at a current density while applying a pressure to the degreased body to obtain a rare-earth iron-based ring magnet.
H01F 41/02 - Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformersApparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils or magnets
B22F 3/00 - Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sinteringApparatus specially adapted therefor
B22F 3/14 - Both compacting and sintering simultaneously
B22F 3/16 - Both compacting and sintering in successive or repeated steps
B22F 3/24 - After-treatment of workpieces or articles
B22F 5/10 - Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of articles with cavities or holes, not otherwise provided for in the preceding subgroups
B22F 9/04 - Making metallic powder or suspensions thereofApparatus or devices specially adapted therefor using physical processes starting from solid material, e.g. by crushing, grinding or milling
H01F 1/057 - Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B
patents
