NTN Corporation

Japan


 
Total IP 4,978
Total IP incl. subs 5,069 (+ 93 for subs)
Total IP Rank # 215
IP Activity Score 3.8/5.0    1,463
IP Activity Rank # 498
IP AS incl. subs 3.5/5.0    1,506
Stock Symbol
ISIN JP3165600002
Market Cap. 120336757102.0  (JPY)
Industry Tools & Accessories
Sector Industrials
Dominant Nice Class Machines and machine tools

Patents

Trademarks

1,212 15
9 8
3,709 13
12
 
Last Patent 2025 - Ball screw device and electric a...
First Patent 1988 - Clutch
Last Trademark 2024 - GUARDIAN AN NTN MONITORING SOLUTION
First Trademark 1960 - NTN

Subsidiaries

2 subsidiaries with IP (80 patents, 13 trademarks)

2 subsidiaries without IP

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Industry (Nice Classification)

Latest Inventions, Goods, Services

2024 Invention Ball bearing. A ball bearing includes a cage circular annular portion and a seal member. The cag...
Invention Control device for industrial equipment. A control device controls an attitude control actuator ...
Invention Charging station for uncrewed aircraft. A charging station (1) is provided with: power generation...
Invention Angular ball bearing and rotation mechanism. Provided are an angular ball bearing and a rotation ...
Invention Hand and component supply system including same. A hand (6) according to the present invention co...
Invention Seal member and rolling bearing with seal. A large number of fine protrusions (23) are formed on ...
Invention Energization unit, electrolytic corrosion prevention bearing device, and bearing unit. This energ...
Invention Rolling bearing. This rolling bearing comprises an outer member (1) and an inner member (2), a pl...
Invention Sealing device. Provided are a sealing device capable of achieving both low torque and high seali...
Invention Bearing device. This bearing device has a magnetic ring attached to a rotary member, and has a se...
Invention Ball bearing. The present invention avoids, during an operation of a ball bearing including a cro...
Invention Ball screw. Provided is a ball screw comprising a circulation member 5 that is mounted in a fitti...
Invention Ball screw. This ball screw includes a circulation member 5 which is attached to a fitting hole 6...
Invention Insulated rolling bearing unit. This insulated rolling bearing unit includes a rolling bearing (1...
Invention Motor unit. This motor unit 1 comprises: an electric motor 2; a substrate 3 provided with a contr...
Invention Sliding constant velocity universal joint and wheel driving device provided with same. In a doubl...
Invention Roller fall-off prevention tool and bearing with roller fall-off prevention tool. A roller fall-o...
Invention Method for designing rolling bearing. A first mathematical expression is prepared which enables a...
Invention Information processing device and information processing method. A monitoring device (100) create...
Invention Information processing device and information processing method. A calculation device (102) ident...
Invention Rolling bearing cage and rolling bearing. Provided are a rolling bearing cage and a rolling beari...
Invention Rolling bearing fitted with conductive seal. Provided is a rolling bearing fitted with an electro...
Invention Power conversion device and power generation system. Provided is a power conversion device having...
Invention Electric motor device. An electric motor device comprises: a stator (4) that has a stator magneti...
Invention Wheel bearing device. The present invention addresses the problem of suppressing movement of a sl...
Invention Sliding style constant velocity universal joint. A film (manganese phosphate film 20) that reduce...
Invention Clutch unit. Provided is a clutch unit 1 including: an input-side clutch 10 that controls the tra...
Invention Method for estimating rolling viscosity resistance, system for estimating rolling viscosity resis...
Invention Collection arrangement member, collection arrangement device, and collection arrangement method. ...
Invention Shaft seal. Provided is a shaft seal capable of reducing the variation in the inner diameter cont...
Invention Retainer for rolling bearings, and rolling bearing. The present invention provides: a retainer fo...
Invention Sealed ball bearing and bearing device. Provided is a ball bearing which is used at a dmn value o...
Invention Rotational load device. This rotational load device comprises a slide tube (16) which is fitted a...
Invention Wrist joint unit and work device equipped with same. A wrist joint unit (HU) comprises: an arm (5...
Invention Rolling bearing and drive unit for vehicle. A rolling bearing (100) supports a rotating shaft of ...
Invention Stator, electric motor, and method for manufacturing stator. A stator 2 includes: an annular stat...
Invention Clutch unit. Provided is a clutch unit which prevents a locking mechanism from switching from an ...
Invention Ball bearing. Provided is a ball bearing having a structure in which: a cage is less susceptible ...
G/S Physical analyzing apparatus, namely, vibration, temperature, ultrasound, proximity, magnetic flu...
2022 Invention Ball screw device and electric actuator provided with same. A ball screw device 4 includes a scr...
Invention Rolling component and rolling bearing. A rolling component has a surface and is made of steel. T...
Invention Sealed bearing. An outer surface rubber portion is formed to cover the entire axially outer surf...
Invention Shell type roller bearing. A shell type roller bearing includes a shell outer ring that includes...
Invention Mechanical component and rolling bearing. A mechanical component includes steel and has a surfac...
Invention Feed screw mechanism and electric actuator. A feed screw mechanism includes a rotary member havi...
Invention Electric actuator. A casing 10 that accommodates an electric motor 2 and a ball screw 30 as a mo...
Invention Silicon nitride sintered body, machine part, and bearing. To provide a silicon nitride sintered ...
Invention Plunging type constant velocity universal joint. A plunging type constant velocity universal joi...
Invention Grinding apparatus. A grinding apparatus includes: a grinding member driving unit having a motor...
2021 G/S Bearings with built-in sensors, machine elements not for land vehicles; bearings, machine element...
G/S Bearings with built-in sensors, machine elements not for land vehicles; bearings, machine elemen...
G/S Bearings with built-in sensors, being parts of machines not for land vehicles; bearings, being pa...
G/S Axles for machines; spindles being parts of machines; shaft couplings, axles and spindles for mac...
G/S Shafts, axles or spindles, machine elements other than land vehicles; bearings, machine elements...
G/S Shafts, axles or spindles being parts of machines; shaft couplings for machines; transmissions an...
2018 G/S Slide bearings as parts of machines; bearings with sensor as parts of machines; hub bearings as p...
G/S Axle bearings; slide bearings; bearings with sensor; hub bearings; bearings, as machine elements...
2017 G/S shafts, axles or spindles being parts of machines; shaft couplings for machines; transmissions an...
G/S Hub bearings being parts of machines; bearings being parts of machines; shafts, axles or spindles...
G/S Computer application software, namely, software for scanning or reading barcodes, quick response ...
G/S Application software; computer software applications, downloadable; computer programs and softwa...
2015 G/S Rocker arms for land vehicles; ball screws for land vehicles. Bearings for land vehicles; axle be...
2013 G/S Vehicle axles coupled with hub bearings; Vehicle axles having junctions with hub bearings; Axle...
G/S Remote monitoring and alerting apparatus for wind-powered electricity generators via communicatio...
2011 G/S [ Conveyors being machines; loading and unloading machines; resonance type vibration conveyors; m...
G/S Conveyors, as machines; loading-unloading machines and apparatus; resonance type vibration conve...
G/S Machine parts, namely, bearings
2010 G/S Machines and machine tools, component parts of these machines, especially ball-bearings, roller ...
2008 G/S Ball bearings for ships and planes; roller bearings for ships and planes; ball bearings other tha...
2007 G/S Ball bearings for ships and planes, roller bearings for ships and planes, ball bearings other tha...
G/S Ball bearings for ships or planes, roller bearings for ships or planes, ball bearings other than...
2005 G/S Bearings (machine elements not for land vehicles); shaft couplings (machine elements not for lan...
2004 G/S Bearings, being parts of machines; mechanical shafts and joints, couplings and parts thereof (exc...
G/S Hub bearings; shaft couplings; wheel bearings; bearings for land vehicle.
G/S Bearings for ships or planes; bearings other than for land vehicles; universal joints other than...
2003 G/S Bearings other than for land vehicles, motors other than for land vehicles and electric generator...
G/S Machine parts namely bearings, motors for machines, electric generators Wheel and axle bearings, ...
G/S [ METAL WORKING MACHINES NAMELY, LATHES, MILLING MACHINES, GRINDING MACHINES FOR MANUFACTURING BE...
G/S Metalworking machines and tools; bearings.
1999 G/S Tapered roller bearings and other bearings; shafts; shaft joints and couplings; their parts (exce...
1992 G/S semi-processed plastic substances; namely, films, tapes, sheets, rods, pipes and boards; semi-pro...
G/S Semi-processed plastic substances in the form of films, tapes, sheets, rods, pipes and boards.
1990 G/S Machine tools, bearing units for wheels, bearings including bearings for wheels, joints, coupling...
1988 G/S CONSTANT VELOCITY JOINTS FOR USE IN MACHINES CONSTANT VELOCITY JOINTS FOR USE IN VEHICLES
1985 G/S BEARINGS
1968 G/S Roulements à billes et à galets, billes, galets de toute forme, butées à billes et à galets, cam...
1960 G/S Bearings.
G/S Ball and Roller Bearings