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Nsk Steering Systems Co., Ltd.

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USPTO Granted Patents = 41

% Expired Patents = 24.4

EPO Patents = 13

Forward Citations = 315

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58 inventors (with patents filed for the assignee):

Shuji Endo (7 out of 55 patents)

Naoki Sawada (5 out of 23 patents)

CaoMinh Ta (5 out of 8 patents)

4. Yuho Aoki (5 out of 11 patents)

5. Toru Segawa (4 out of 32 patents)

6. Hideyuki Kobayashi (4 out of 18 patents)

7. Kazuo Chikaraishi (4 out of 25 patents)

8. Jun Yamada (3 out of 11 patents)

9. Atsushi Horikoshi (2 out of 8 patents)

10. Kiyoshi Sadakata (2 out of 36 patents)

11. Mitsutoshi Uchida (2 out of 6 patents)

12. Yasuhisa Yamada (2 out of 10 patents)

13. Kiyoharu Higashino (2 out of 15 patents)

14. Takeshi Hara (2 out of 6 patents)

15. Masaki Nishioka (2 out of 3 patents)

Core Competencies:

Electric Power Steering

Steering Column

Control Device

Worm Reduction Gear

Impact Absorbing

Telescopic Structure

Vehicle Steering

Motor Driving Device

Dust Cover

Hydroforming Method

Steering Angle Estimating

Rotation Detecting

41 patents: Sort by Forward Citations

1. 8459077 - Manufacturing method for metal member with through hole (2013-06-11),

2. 7641561 - Dust cover for a steering shaft (2010-01-05),

3. 7591204 - Belt speed reducing apparatus for electric power steering apparatus and electric power steering apparatus (2009-09-22),

4. 7574294 - Controller for electric power steering device (2009-08-11),

5. 7559405 - Controller for electric power steering device (2009-07-14),

6. 7548035 - Control apparatus of electric power steering apparatus (2009-06-16),

7. 7506893 - Impact absorbing steering column device for vehicle (2009-03-24),

8. 7500538 - Control unit for electric power steering apparatus (2009-03-10),

9. 7464571 - Hydroforming method and mold used for the hydroforming method (2008-12-16),

10. 7455149 - Worm reduction gear and electric power steering apparatus (2008-11-25),

11. 7455148 - Worm reduction gear and electric power steering apparatus (2008-11-25),

12. 7443131 - Control device for electric power steering apparatus (2008-10-28),

13. 7441807 - Telescopic structure and steering column device for motor vehicle (2008-10-28),

14. 7440829 - Steering angle estimating apparatus for vehicle (2008-10-21),

15. 7438320 - Steering column for motor vehicle (2008-10-21),

Company Overview

Nsk Steering Systems Co., Ltd., based in Tokyo, specializes in advanced automotive steering technologies. The company focuses on the development and manufacturing of electric power steering systems, steering column devices, and control units, enhancing vehicle performance and safety. Their innovations include impact-absorbing steering mechanisms and telescopic structures, which contribute to improved driving experiences. With a commitment to precision engineering, Nsk Steering Systems plays a vital role in the evolution of automotive steering solutions.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 27 2026

41 Patents

#908 in Tokyo

#1,944 in Japan

#16,731 in the World

Nsk Steering Systems Co., Ltd.

Forward Citations = 315

58 inventors:

Shuji Endo (7 out of 55 patents)

Naoki Sawada (5 out of 23 patents)

CaoMinh Ta (5 out of 8 patents)

4. Yuho Aoki (5 out of 11 patents)

5. Toru Segawa (4 out of 32 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Nsk Steering Systems Co., Ltd.. Retrieved from https://idiyas.com/company/nsk-steering-systems-company

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]

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