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For the Inventor, By the Inventor

Tokyo, Japan

Nippon Koki Co., Ltd.

USPTO Granted Patents = 20


Forward Citations = 326

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44 inventors (with patents filed for the assignee):

goldMedal Junichi Kishimoto (12 out of 12 patents)

silverMedal Hirokazu Kobari (7 out of 7 patents)

bronzeMedal Minoru Hayashi (4 out of 4 patents)

4.  Kanichi Fukuda (3 out of 11 patents)

5.  Tadao Yoshida (3 out of 4 patents)

6.  Takashi Kazumi (3 out of 3 patents)

7.  Sakae Takahashi (3 out of 3 patents)

8.  Takashi Minamizawa (3 out of 3 patents)

9.  Kazuhiro Seki (2 out of 10 patents)

10.  Michio Shioda (2 out of 2 patents)

11.  Koichi Kobari (2 out of 2 patents)

12.  Kimiharu Sato (2 out of 2 patents)

13.  Michio Shiota (2 out of 2 patents)

14.  Hitoshi Miyazaki (2 out of 2 patents)

15.  Hitoshi Kunii (2 out of 2 patents)


20 patents:

1. 6127564 - Semicarbazine/manganese complex and gas generator for air bag (2000-10-03),
2. 5898126 - Air bag gas generating composition (1999-04-27),
3. 5883330 - Azodicarbonamide containing gas generating composition (1999-03-16),
4. 5839754 - Multiple stage airbag gas generator (1998-11-24),
5. 5799977 - Gas generator for seat belt retracting power generating device (1998-09-01),
6. 5645296 - Air bag inflation gas generator (1997-07-08),
7. 5578787 - Gas generating agent of air bag inflation gas generator (1996-11-26),
8. 5571271 - Air bag inflation gas generator (1996-11-05),
9. 5468016 - Gas generating agent pack of air bag inflation gas generator (1995-11-21),
10. 5451381 - Gas generating agent pack for air bag inflation gas generator (1995-09-19),
11. 5397544 - Air bag inflation gas generator (1995-03-14),
12. 5382415 - Air bag inflation gas generator (1995-01-17),
13. 5350193 - Air bag inflation gas generator (1994-09-27),
14. 5345872 - Igniter (1994-09-13),
15. 5254838 - Igniter for electric ignition systems (1993-10-19),
Company Overview
Nippon Koki Co., Ltd. is a prominent Japanese company based in Tokyo, specializing in the development and manufacturing of precision machinery and equipment. The organization focuses on advanced technologies in fields such as industrial automation, robotics, and optical instruments. With a commitment to innovation, Nippon Koki plays a significant role in enhancing productivity and efficiency across various sectors, contributing to the evolution of manufacturing processes and technological advancements in Japan and beyond.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 20 2026

20 Patents

#1,343 in Tokyo

#2,945 in Japan

#31,295 in the World

Tokyo, JP
Tokyo, Japan

Nippon Koki Co., Ltd.

Forward Citations = 326

44 inventors:

goldMedal Junichi Kishimoto (12 out of 12 patents)

silverMedal Hirokazu Kobari (7 out of 7 patents)

bronzeMedal Minoru Hayashi (4 out of 4 patents)

4.  Kanichi Fukuda (3 out of 11 patents)

5.  Tadao Yoshida (3 out of 4 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Nippon Koki Co., Ltd.. Retrieved from https://idiyas.com/company/nippon-koki-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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