NHK Spring Co., Ltd.

Japan


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Total IP 1,858
Total IP incl. subs 1,896 (+ 45 for subs)
Total IP Rank # 712
IP Activity Score 3.7/5.0    1,024
IP Activity Rank # 726
IP AS incl. subs 3.4/5.0    1,039
Stock Symbol
ISIN JP3742600004
Market Cap. 218195132736.0  (JPY)
Industry Auto Parts
Sector Consumer Cyclical
Dominant Nice Class Games; toys; sports equipment

Patents

Trademarks

801 24
24 9
973 18
9
 
Last Patent 2025 - Method of manufacturing armature
First Patent 1977 - Nc coil spring manufacturing app...
Last Trademark 2025 - NS
First Trademark 1962 - NHK

Subsidiaries

5 subsidiaries with IP (40 patents, 5 trademarks)

3 subsidiaries without IP

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Industry (Nice Classification)

Latest Inventions, Goods, Services

2025 Invention Coil spring, suspension device, and coil spring manufacturing method. According to an embodiment...
Invention Stage. A stage includes a first metal plate, a second metal plate below the first metal plate, a...
Invention Multilayer structure and method for manufacturing multilayer structure. A laminated structure in...
Invention Bending structure and joint function part. Provided is a bending structure and a joint function ...
Invention Turbocharger with insulator. An example turbocharger includes a turbine impeller, a rotation sha...
Invention Coiling machine and coil spring manufacturing method. A coiling machine comprises a feed unit fe...
Invention Coiling machine and production method for coil springs. A coiling machine comprises a laser heat...
G/S Towels of textile; Japanese cotton towels [Tenugui]; handkerchiefs of textile; Japanese general w...
G/S Gloves for household purposes; cooking pots and pans, non-electric; kettles, non-electric; kitch...
G/S Gloves for household purposes; cooking pots and pans, non-electric; kettles, non-electric; kitche...
Invention Contact probe, probe holder and probe unit. A contact probe includes: a first plunger; a second ...
Invention Heater unit. A heater unit includes a heater, a first plate including a groove portion in which ...
Invention Vehicle seat. Provided is a vehicle seat that can suppress unsteadiness of a sitting occupant. A ...
Invention Suspension coil spring device. This suspension coil spring device comprises: a coil spring includ...
2024 Invention Segment coil management method and device. Provided is a segment coil management method capable o...
Invention Punching device and method. Provided is a punching device capable of punching in which the roundn...
Invention Vehicle seat and headrest. This vehicle seat is equipped with a headrest. A main part disposed to...
Invention Personal watercraft and controlling method of the same. According to an embodiment a personal wa...
Invention Tension balancer. This tension balancer comprises: first to n-th cylindrical members; first to (n...
Invention Conveyance device and conveyance method. A conveyance device according to one embodiment is a co...
Invention Vehicle suspension system. A vehicle suspension system according to the present invention compris...
Invention Vehicle suspension device. This vehicle suspension device includes: a plate spring; a locking mem...
Invention Vehicular suspension device. According to the present invention, a vehicular suspension device, w...
Invention Vehicle suspension device. A vehicle suspension device according to the present invention is prov...
Invention Inspection device and inspection method. According to an embodiment, an inspection device inspec...
Invention Working jig, die set using the working jig and manufacturing method for working jig. According t...
Invention Workpiece manufacturing device and workpiece manufacturing method. A workpiece manufacturing dev...
Invention Vehicle seat. This vehicle seat includes a plurality of spring members which are bridged between ...
Invention Medical wire. The present invention comprises a bendable first flexible tube body (11) that exten...
Invention Medical wire. The present invention comprises a first flexible tube body (11) that extends in the...
Invention Medical wire. The present invention comprises: a first flexible tube body (11) that extends in th...
Invention Moisture-proof cover for heater. This moisture-proof cover for a heater covers a heater that is e...
Invention Method for manufacturing spring member and control device. 2111, which is the ratio of the area o...
Invention Composite body, method for manufacturing composite body, laminate, and method for manufacturing l...
Invention Vehicular seat frame and vehicular seat. Provided is a vehicular seat frame capable of suppressin...
Invention Coil spring, suspension device, and method for producing coil spring. A coil spring according to ...
Invention Golf shaft and method for manufacturing same. Provided is a golf shaft capable of obtaining an ap...
G/S Labels with machine-readable codes, namely, labels carrying electronically recorded or encoded in...
G/S Labels with machine-readable codes; labels carrying magnetically recorded or encoded information...
2023 G/S Electronic testing apparatus for liquid crystal panels; electronic testing apparatus for semicon...
G/S Umbrellas; golf umbrellas; day packs; briefcases; bags; bags for sports; travelling bags; pouches...
G/S Umbrellas; golf umbrellas; day packs; briefcases; bags; bags for sports; travelling bags; pouche...
Invention Spring member. A spring member presses a first pressed body and a second pressed body in directi...
Invention Motor core manufacturing device and motor core manufacturing method. A motor core manufacturing ...
Invention Coating material application system, control device, control method, and control program. A coat...
Invention Remote ship maneuvering system, ship control device, input device, remote ship maneuvering method...
Invention Accumulator. An accumulator includes: an exterior body including a bottom, a shell and a port; a...
Invention Method of manufacturing stabilizer and base material. A method of manufacturing a stabilizer hav...
Invention Disc spring member. A disc spring device includes a first member and a second member, in which t...
Invention Method for manufacturing laminated body. Provided is a method for manufacturing a laminated body...
Invention Torsion bar unit. A height torsion bar unit according to an embodiment of the present invention c...
Invention Circuit board, method for manufacturing circuit pattern, and etching device. There are provided ...
Invention Laminated body manufacturing device and laminated body manufacturing method. A laminated body ma...
Invention Coating method and sheet material. A coating method including: using a coating apparatus includi...
Invention Method for producing laminate. The present invention relates to a laminate that includes a circu...
2022 Invention Apparatus for manufacturing stator, method for manufacturing stator, and stator. An apparatus fo...
Invention Heating method and heating system. A heating method for hardening a coil spring includes: fixing...
G/S Golf club shafts
Invention Method of manufacturing armature. With this manufacturing method, a stator provided with a plura...
2021 G/S Golf clubs; golf club shafts.
G/S Golf club shafts.
2019 G/S Golf club shafts; golf clubs; golf club heads; head covers for golf clubs; golf club grips; grip...
G/S Electric accumulators for vehicles Metallic bellows for articulated vehicles
G/S Printed wiring boards; Printed circuit boards; Electronic circuit boards; Electrical circuit boar...
G/S Printed circuit boards; Electronic circuit boards; Electrical circuit boards; Circuit boards; Cus...
2018 G/S Probes for scientific purposes; semiconductor testing apparatus; contact probes for testing semic...
G/S Probes for scientific purposes; semiconductor testing apparatus; contact probes for testing semi...
G/S Metal pipe supports; metal clamps; door springs, non-electric. Motors core (electric motors for m...
G/S structural vehicle parts and fittings for land vehicles, namely, connecting radius rods, stabilin...
G/S Accumulators for vehicles namely electric accumulator for vehicles, accumulators to control vehic...
2017 G/S Umbrellas; bags for sports; rucksacks; briefcases; suitcase; travelling case; travelling bags; ca...
G/S umbrellas; bags for sports; rucksacks; briefcases; suitcase; travelling case; travelling bags; c...
G/S Golf umbrellas; bags for golf sports; rucksacks for golf sports; briefcases for golf sports; suit...
G/S Umbrellas; bags for sports; rucksacks; briefcases; suitcases; travelling cases for carrying sport...
G/S Umbrellas; bags for sports; rucksacks; briefcases; suitcases; travelling cases for carrying spor...
2016 G/S Golf clubs; golf club shafts.
G/S Golf clubs; golf club shafts
2015 G/S Metal nuts; movable metal handrails used in nursing care; metal hardware, namely, springs, mesh s...
G/S locks of metal; springs, of metal; non-electric wires; springs of titanium alloy. springs being p...
G/S Shock absorbers for land vehicles; springs for land vehicles.
2012 G/S Holograms, namely, printed laser photographs; bar code readers; portable telephones; printers; * ...
G/S Holograms (laser photographs), bar code readers, portable telephones, printers, counterfeit disc...
2010 G/S Golf club shaft.