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Kokusan Kinzoku Kogyo Kabushiki Kaisha

USPTO Granted Patents = 33

Forward Citations = 628

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42 inventors (with patents filed for the assignee):

Mikio Masaki (7 out of 8 patents)

Haruo Mochida (5 out of 57 patents)

Hidekazu Sato (4 out of 32 patents)

4. Keiichi Shimizu (4 out of 21 patents)

5. Takeshi Fukasawa (4 out of 7 patents)

6. Hirotoshi Namazue (4 out of 10 patents)

7. Toshikazu Kobayashi (3 out of 19 patents)

8. Toshiharu Iidaka (3 out of 3 patents)

9. Shouji Akutsu (3 out of 3 patents)

10. Satoru Kobayashi (2 out of 81 patents)

11. Kazumasa Yamamoto (2 out of 3 patents)

12. Yoshio Watanuki (2 out of 24 patents)

13. Takurou Ozawa (2 out of 2 patents)

14. Hideaki Sakuno (2 out of 2 patents)

15. Yoshimasa Tuchiya (2 out of 9 patents)

33 patents: Sort by Forward Citations

1. 5210797 - Adaptive dictionary for a fingerprint recognizer (1993-05-11),

2. 5092147 - Steering lock (1992-03-03),

3. 5043593 - Optical theft deterrent system (1991-08-27),

4. 4981026 - Steering column shaft locking device for an automotive vehicle (1991-01-01),

5. 4972695 - Anti-pick cylinder lock (1990-11-27),

6. 4957196 - Coin-operated locker (1990-09-18),

7. 4866433 - Vehicle locking and unlocking system (1989-09-12),

8. 4858453 - Car anti-theft device (1989-08-22),

9. 4835533 - Vehicle-use locking and unlocking system (1989-05-30),

10. 4827744 - Vehicle use lock system (1989-05-09),

11. 4811013 - Vehicle use-locking and unlocking system (1989-03-07),

12. 4756174 - Automotive vehicle use steering shaft locking and unlocking arrangement (1988-07-12),

13. 4716748 - Steering lock device (1988-01-05),

14. 4702117 - Lock actuator for a pair of locks (1987-10-27),

15. 4681357 - Automotive door handle container (1987-07-21),

Kokusan Kinzoku Kogyo Kabushiki Kaisha is a leading manufacturing company specializing in metal products. With over 50 years of experience in the industry, we have earned a reputation for delivering high-quality and reliable solutions to various market sectors. Our diverse range of products includes precision machined parts, metal castings, and fabricated components. We are committed to customer satisfaction, innovation, and sustainability, and strive to exceed expectations through our advanced manufacturing capabilities and exceptional service. Visit our website to learn more about our company and explore our extensive product portfolio.

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Company Badge

USPTO Data Jan 1 1976 - Jan 6 2026

33 Patents

#888 in Tokyo

#2,148 in Japan

#19,571 in the World

Kokusan Kinzoku Kogyo Kabushiki Kaisha

Forward Citations = 628

42 inventors:

Mikio Masaki (7 out of 8 patents)

Haruo Mochida (5 out of 57 patents)

Hidekazu Sato (4 out of 32 patents)

4. Keiichi Shimizu (4 out of 21 patents)

5. Takeshi Fukasawa (4 out of 7 patents)

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