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For the Inventor, By the Inventor

Shizuoka, Japan

Nihon Plast Co., Ltd.


USPTO Granted Patents = 227

% Expired Patents = 28.2


Forward Citations = 1,507

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243 inventors (with patents filed for the assignee):

goldMedal Kazuyoshi Nishijima (29 out of 30 patents)

silverMedal Kazuhiro Kaneko (28 out of 42 patents)

bronzeMedal Toshiyuki Sugiyama (17 out of 18 patents)

4.  Yohei Kiuchi (15 out of 15 patents)

5.  Tetsuji Endo (15 out of 15 patents)

6.  Aki Yokoyama (13 out of 13 patents)

7.  Mikio Ochiai (13 out of 13 patents)

8.  Kenichi Kamio (9 out of 9 patents)

9.  Masami Tonooka (9 out of 10 patents)

10.  Shuji Yamada (8 out of 8 patents)

11.  Akihiko Yamami (7 out of 7 patents)

12.  Akito Urushibata (7 out of 7 patents)

13.  Takahiro Suwama (7 out of 7 patents)

14.  Hideaki Saito (6 out of 6 patents)

15.  Takenori Kurata (6 out of 6 patents)


Core Competencies:
Airbag
Wind Direction Adjustment
Vehicle Interior
Steering Wheel
Cowl Cover
Curtain Airbag
Cover Body
Vehicle Component
Decorative Panel
Mounting Structure
Vibration Suppression
Stowing Device

227 patents:

1. 12759480 - Vehicle interior material (2026-10-13),
2. 12600201 - Wind direction adjustment apparatus (2026-04-14),
3. 12559989 - Lock apparatus and storage apparatus (2026-02-24),
4. 12422018 - Vibration suppression apparatus (2025-09-23),
5. 12397620 - Wind direction adjustment apparatus (2025-08-26),
6. 12391099 - Wind direction adjusting apparatus (2025-08-19),
7. 12265415 - Moderation feeling adding apparatus (2025-04-01),
8. 12146541 - Coupling device (2024-11-19),
9. 12128660 - Vehicle interior material (2024-10-29),
10. 12090963 - Vehicle hook apparatus (2024-09-17),
11. 11907002 - Moderation feeling adding apparatus (2024-02-20),
12. 11794818 - Cowl cover apparatus (2023-10-24),
13. 11766973 - Vehicle interior component (2023-09-26),
14. 11745784 - Handle and method for manufacturing the same (2023-09-05),
15. 11660936 - Wind direction adjustment device (2023-05-30),
Company Overview
Nihon Plast Co., Ltd. is a prominent player in the automotive sector, specializing in advanced airbag technology. The company focuses on the development and manufacturing of various vehicle safety components, including airbags, wind direction adjustment systems, and interior vehicle elements such as steering wheels and cowl covers. With a commitment to enhancing passenger safety and comfort, Nihon Plast is dedicated to innovation in vehicle component design, ensuring that their products meet the evolving demands of the automotive industry.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 20 2026

227 Patents

#7 in Shizuoka

#648 in Japan

#3,775 in the World

Shizuoka, JP
Shizuoka, Japan

Nihon Plast Co., Ltd.

Forward Citations = 1,507

243 inventors:

goldMedal Kazuyoshi Nishijima (29 out of 30 patents)

silverMedal Kazuhiro Kaneko (28 out of 42 patents)

bronzeMedal Toshiyuki Sugiyama (17 out of 18 patents)

4.  Yohei Kiuchi (15 out of 15 patents)

5.  Tetsuji Endo (15 out of 15 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Nihon Plast Co., Ltd.. Retrieved from https://idiyas.com/company/nihon-plast-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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