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For the Inventor, By the Inventor

Tokyo, Japan

Nabtesco Corporation


USPTO Granted Patents = 399

% Expired Patents = 14.5



Trademarks = 15

Forward Citations = 1,053

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344 inventors (with patents filed for the assignee):

goldMedal Koji Nakamura (29 out of 30 patents)

silverMedal Tsutomu Yasui (22 out of 33 patents)

bronzeMedal Koji Ito (16 out of 110 patents)

4.  Kazuhiko Sakurai (14 out of 14 patents)

5.  Yuto Nakai (13 out of 13 patents)

6.  Osamu Nohara (13 out of 15 patents)

7.  Atsushi Fukui (13 out of 13 patents)

8.  Koji Nakamura (11 out of 71 patents)

9.  Masaki Harada (11 out of 17 patents)

10.  Atsuhito Yamaguchi (11 out of 11 patents)

11.  Etsuro Komori (11 out of 11 patents)

12.  Masahiro Takahashi (10 out of 244 patents)

13.  Kazuyoshi Makisumi (10 out of 10 patents)

14.  Shingo Nakagawa (10 out of 11 patents)

15.  Masahiro Takahashi (10 out of 15 patents)


Core Competencies:
Speed Reducer
Hydraulic Pump
Drive Transmission
Rotary Actuator
Gear Mechanism
Sensor Device
Control Method
Joint Structure
Wind Turbine
Abnormality Detection
Construction Machine
Electro-Hydrostatic Circuit

399 patents:

1. 12721738 - Prosthetic knee joint, prosthetic knee joint power generating method, and tangible computer-readable storage medium storing program (2026-09-01),
2. 12716480 - Speed reducer and industrial machine (2026-08-25),
3. 12716471 - Drive transmission device and construction machine (2026-08-25),
4. 12710096 - LUBRICANT LEAKAGE CONTROL MECHANISM AND GEAR MECHANISM (2026-08-18),
5. 12709869 - DRIVING APPARATUS, DRIVING METHOD, AND DRIVING PROGRAM (2026-08-18),
6. D1139036 - Actuator for aircraft (2026-08-04),
7. D1137052 - Actuator for electric power steering (2026-07-28),
8. D1137051 - Actuator for electric power steering (2026-07-28),
9. 12692741 - Automatic door device for detecting object using infrared sensor and image sensor, automatic door sensor, automatic door control method, storage medium storing automatic door control program, automatic door sensor control method, and storage medium storing automatic door sensor control program (2026-07-28),
10. 12679449 - Drive control device, drive control method, and computer-readable storage medium (2026-07-14),
11. 12638507 - Automatic door maintenance support system, automatic door maintenance support apparatus, automatic door apparatus, automatic door maintenance support method, and program (2026-05-26),
12. 12631257 - Seal device and construction machine (2026-05-19),
13. D1126267 - Speed reducer (2026-05-12),
14. 12623486 - Mecanum wheel (2026-05-12),
15. D1125310 - Speed reducer (2026-05-05),
Nabtesco Corporation, headquartered in Tokyo, Japan, specializes in the development and manufacturing of precision machinery and components, particularly in the field of speed reducers. The company is recognized for its innovative solutions in hydraulic pumps, drive transmission systems, rotary actuators, and gear mechanisms. With a strong emphasis on advanced sensor devices and control methods, Nabtesco contributes to various industries, enhancing automation and efficiency in applications ranging from robotics to transportation.
Profile summary based on public USPTO records.

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USPTO Data Jan 1 1976 - Sep 29 2026

Nabtesco Corporation
399 Patents

#216 in Tokyo

#435 in Japan

#2,331 in the World

Tokyo, JP
Tokyo, Japan

Nabtesco Corporation

Forward Citations = 1,053

344 inventors:

goldMedal Koji Nakamura (29 out of 30 patents)

silverMedal Tsutomu Yasui (22 out of 33 patents)

bronzeMedal Koji Ito (16 out of 110 patents)

4.  Kazuhiko Sakurai (14 out of 14 patents)

5.  Yuto Nakai (13 out of 13 patents)

Please report any incorrect information to [email protected]
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