For the Inventor, By the Inventor

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Kenkan Corporation

USPTO Granted Patents = 1

Forward Citations = 6

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10 inventors (with patents filed for the assignee):

Shigeyuki Matsumoto (1 out of 8 patents)

Masao Kanazawa (1 out of 7 patents)

Kenji Miyatani (1 out of 2 patents)

4. Mitsuaki Motoda (1 out of 2 patents)

5. Kenji Fuse (1 out of 2 patents)

6. Nobuhisa Fukuda (1 out of 2 patents)

7. Minoru Sunaga (1 out of 2 patents)

8. Tsuneyoshi Shibata (1 out of 2 patents)

9. Yasuo Yabe (1 out of 2 patents)

10. Yasuyoshi Maruhashi (1 out of 1 patent)

1 patent: Sort by Forward Citations

1. 5722695 - Pipe joint (1998-03-03),

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USPTO Data Jan 1 1976 - Jan 6 2026

1 Patents

#5,734 in Tokyo

#15,549 in Japan

Kenkan Corporation

Forward Citations = 6

10 inventors:

Shigeyuki Matsumoto (1 out of 8 patents)

Masao Kanazawa (1 out of 7 patents)

Kenji Miyatani (1 out of 2 patents)

4. Mitsuaki Motoda (1 out of 2 patents)

5. Kenji Fuse (1 out of 2 patents)

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