Abstract

One method for producing a dielectric oxide according to the present invention comprises: a precursor layer formation step wherein a layer of a first mixed precursor solution, which is obtained by mixing a first precursor solution that contains, as solutes, a precursor containing bismuth (Bi) and a precursor containing niobium (Nb) with at least one additive selected from the group consisting of sorbitan fatty acid esters, polyoxyethylene ethers of sorbitan fatty acid esters, polyvinyl polymers and ethylene polymers, is formed by means of a coating method; and a dielectric oxide layer formation step wherein a layer (30x) of a first dielectric oxide which has a crystal phase having a pyrochlore crystal structure and contains a first oxide that is composed of bismuth (Bi) and niobium (Nb) (and which may contain unavoidable impurities) is formed by means of a heating treatment in which the layer of the first mixed precursor solution is heated in an oxygen-containing atmosphere.

IPC Classes  ?

• H01L 21/316 - Inorganic layers composed of oxides or glassy oxides or oxide-based glass
• C01G 33/00 - Compounds of niobium
• H01G 4/12 - Ceramic dielectrics
• H01G 4/33 - Thin- or thick-film capacitors
• H01L 21/822 - Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate with subsequent division of the substrate into plural individual devices to produce devices, e.g. integrated circuits, each consisting of a plurality of components the substrate being a semiconductor, using silicon technology
• H01L 21/8234 - MIS technology
• H01L 27/04 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being a semiconductor body
• H01L 27/06 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being a semiconductor body including a plurality of individual components in a non-repetitive configuration
• H01L 27/088 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being a semiconductor body including only semiconductor components of a single kind including field-effect components only the components being field-effect transistors with insulated gate

Abstract

b to form a twisted portion 5, whereby it is possible to perform output of a steady mode from light incident on the fiber 2.

IPC Classes  ?

• G02B 6/14 - Mode converters
• G02B 6/46 - Processes or apparatus adapted for installing optical fibres or optical cables
• G02B 6/00 - Light guidesStructural details of arrangements comprising light guides and other optical elements, e.g. couplings

Abstract

[Problem] To provide a multi-core optical connector which is easy to assemble as a result of having a simple structure, and which provides excellent operability during connection. [Solution] By providing a plate-like guide 2 for fiber movement to an end face and providing a gap x at the rear surface of the plate-like guide 2, fibers 5 move with each other in the optical axis direction along through-holes h provided in the plate-like guide 2 when connecting a connector. Accordingly, when connecting connectors, the fibers 5, which are capable of being elastically connected independently of each other, can be connected collectively. Further, when used as a multi-core connector 1, the positioning accuracy between the fibers 5 can be improved.

IPC Classes  ?

• G02B 6/38 - Mechanical coupling means having fibre to fibre mating means

Abstract

An optical connector of the present invention includes a ferrule that holds a multicore fiber, and a plug frame equipping the ferrule housed therein. The ferrule has at least one flat surface on the outer circumferential surface thereof, and the plug frame has a plate spring structure to apply pressure on the flat surface. In the optical connector of the present invention, the plate spring structure is casted in the plug frame.

IPC Classes  ?

• G02B 6/38 - Mechanical coupling means having fibre to fibre mating means

Abstract

[Problem] To provide an oxide derivative having excellent characteristics and a solid-state electronic device (for example, a high frequency filter, a patch antenna, a capacitor, a semiconductor device or a micro-electro-mechanical system) which is provided with this oxide derivative. [Solution] An oxide layer 30 that is formed of one oxide derivative according to the present invention contains an oxide which is composed of bismuth (Bi) and niobium (Nb) and has a crystal phase having a pyrochlore crystal structure (and which may contain unavoidable impurities). If the number of bismuth (Bi) atoms is taken as 1, the number of niobium (Nb) atoms is from 1.3 to 1.7 (inclusive).

IPC Classes  ?

• H01L 21/316 - Inorganic layers composed of oxides or glassy oxides or oxide-based glass
• C01G 33/00 - Compounds of niobium
• H01L 21/822 - Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate with subsequent division of the substrate into plural individual devices to produce devices, e.g. integrated circuits, each consisting of a plurality of components the substrate being a semiconductor, using silicon technology
• H01L 21/8246 - Read-only memory structures (ROM)
• H01L 27/04 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being a semiconductor body
• H01L 27/105 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being a semiconductor body including a plurality of individual components in a repetitive configuration including field-effect components

Abstract

Provided is a steering-wheel power generation device that, when operating in-vehicle equipment wirelessly from an operation unit provided on a steering wheel, can supply power having high power generation efficiency and space efficiency in line with practical use. A ring-shaped rack and a gear power generator fitted to the rack are provided in the gripping portion of the steering wheel, and a guide groove portion is provided on an inner wall of the gripping portion, thereby enabling a guide portion to absorb shock other than the shock in the power generation direction, and enabling stable power supply even when the steering wheel is being rotated.

IPC Classes  ?

• B62D 1/04 - Hand wheels
• 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

Abstract

[Problem] To provide an oxide dielectric having excellent properties and a solid state electronic device (e.g., a capacitor, semiconductor device, or micro-electrical-mechanical system) equipped with the oxide dielectric. [Solution] An oxide layer (30) including one of the oxide dielectrics of the present invention is a layer of oxide (which may have unavoidable impurities) that includes bismuth (Bi) and niobium (Nb), and has a first crystal phase of a pyrochlore-type crystal structure and a second crystal phase of a β-BiNbO4-type crystal structure. In addition, the content of the first crystal phase and the content of the second crystal phase are adjusted in the oxide layer (30), the dielectric constant of the first crystal phase decreasing with the rise in the temperature of the oxide layer (30) in a temperature range of 25°C to 120°C and the dielectric constant of the second crystal phase increasing with the rise in the temperature of the oxide layer (30) in said temperature range.

IPC Classes  ?

• C01G 33/00 - Compounds of niobium
• C04B 35/00 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products
• H01G 4/12 - Ceramic dielectrics

Abstract

　Provided is an electricity-generating device that, while incorporating a basic structure in which a rack and a pinion are used, exhibits improved durability by virtue of a simplified structure, offers heightened power-generating efficiency, and contains fewer components; it being possible to easily reduce the size of said device. A guiding mechanism is formed by combining rails provided on a case inner wall of an electricity-generating device using a case outer wall of an electricity-generating unit as a guide; whereby unnecessary stress from the electricity-generating unit is dispersed in the case inner wall, the overall size is reduced, fewer components are required, and durability is improved.

IPC Classes  ?

• H02K 7/06 - Means for converting reciprocating motion into rotary motion or vice versa

Abstract

　Provided are an optical fiber assembly, and an optical coupling device and optical fiber coupling device provided with the optical fiber assembly. In the optical fiber assembly, damage to a fixing material is prevented by preventing clad mode light from being incident on the fixing material, and the direct incidence on the fixing material of laser light emitted from a light-emitting element or an optical fiber is prevented to produce resistance against emitted light. At least an optical fiber and a capillary constitute the optical fiber assembly. The optical fiber is inserted into the capillary and one end of the optical fiber is extended from the capillary. The capillary and the outer circumference of the optical fiber are fixed using the fixing material. A ceramic material is disposed so as to be in contact around the entire outer circumference of the optical fiber and so as to have a predetermined contact length in the axial direction of the optical fiber. The position at which the ceramic material is disposed is set forward of the position of the fixing material as viewed from one end of the optical fiber.

IPC Classes  ?

• G02B 6/42 - Coupling light guides with opto-electronic elements
• G02B 6/40 - Mechanical coupling means having fibre bundle mating means

Abstract

[Problem] To provide a coupler whereby an axis direction shift of a multicore fiber is not generated. [Solution] An optical coupler (17) of the present invention includes a ferrule (13) that holds a multicore fiber (11), and a plug frame (15) having the ferrule (13) housed therein. The ferrule (13) has at least one flat surface (19) on the outer circumferential surface thereof, and the plug frame (15) has a plate spring structure (21) for pressurizing the flat surface (19). In the optical coupler (17) of the present invention, the plate spring structure (21) is integrally molded in the plug frame (15).

IPC Classes  ?

• G02B 6/40 - Mechanical coupling means having fibre bundle mating means
• G02B 6/38 - Mechanical coupling means having fibre to fibre mating means

Abstract

Provided is a current measuring device such that it is possible to reliably keep the fluctuation range for the ratio error in output to within a range of ±0.5% and such that assembly thereof can be simplified. The current measuring device is configured to include at least a light entrance and exit, an optical fiber for a sensor, a Faraday rotator, a first 1/4 wavelength plate, a second 1/4 wavelength plate, a polarization separator, a light source, and a signal processing circuit comprising a photoelectric conversion element. The optical fiber for a sensor has birefringence and comprises one end into which two circularly polarized light beams having different directions of rotation enter and another end that reflects the circularly polarized light beams that have entered. In addition, the phase difference of two linearly polarized light beams in the round-trip light path between the two 1/4 wavelength plates is compensated, and the Faraday rotational angle when the Faraday rotator is magnetically saturated is set to 22.5°+α° so that the fluctuation range for the ratio error in the measured value of the current to be measured is set to be in the range of ±0.5%. In addition, the crystal axes on the optical faces of the two 1/4 wavelength plates are set to be perpendicular or are set to be in the same direction.

IPC Classes  ?

• G01R 15/24 - Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using light-modulating devices

Abstract

Provided are a sleeve for optical communication and method for manufacture for the sleeve for optical communication, for which withdrawal force for ferrules, which are generally used in the technical field of optical communication, or connection loss between ferrules is a predetermined value, and for which manufacturing steps are reduced so as to allow reduction of manufacturing costs. The present invention is made by press-molding ceramic feedstock, after which cold isostatic pressing and sintering are performed thereto, and is made so that an inner circumferential surface (4a), of a through-hole (2a) for inserting a ferrule formed on the length-direction of the axis, has a sintered state.

IPC Classes  ?

• G02B 6/38 - Mechanical coupling means having fibre to fibre mating means
• B28B 3/00 - Producing shaped articles from the material by using pressesPresses specially adapted therefor
• B28B 3/06 - Producing shaped articles from the material by using pressesPresses specially adapted therefor wherein a ram exerts pressure on the material in a moulding spaceRam heads of special form with one ram per mould with two or more ram and mould sets
• B28B 11/00 - Apparatus or processes for treating or working the shaped articles