For the Inventor, By the Inventor

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Kokubunji-shi, Japan

Nippo Sangyo Co., Ltd.

USPTO Granted Patents = 3

EPO Patents = 2

Trademarks = 2

Forward Citations = 31

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6 inventors (with patents filed for the assignee):

Hironari Abe (2 out of 2 patents)

Toshio Sawa (2 out of 4 patents)

Kosuke Abe (1 out of 1 patent)

4. Noboru Ishikawa (1 out of 1 patent)

5. Atsushi Kasahara (1 out of 2 patents)

6. Yuya Abe (1 out of 1 patent)

7. Yasuaki Amemiya (1 patent)

8. Noburu Ishikawa (0 patent)

9. Hironari Abe (0 patent)

10. Masayuki Saito (0 patent)

11. Kazuhiro Nakamura (0 patent)

12. Hiroki Sato (0 patent)

13. Kousuke Abe (0 patent)

3 patents: Sort by Forward Citations

1. 10545086 - Friction coefficient measurement apparatus (2020-01-28),

2. 6679106 - Road surface roughness measuring device (2004-01-20),

3. 4594878 - Dynamic friction coefficient measuring apparatus (1986-06-17),

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USPTO Data Jan 1 1976 - Dec 16 2025

3 Patents

#1 in Kokubunji-shi

#8,766 in Japan

Kokubunji-shi, Japan

Nippo Sangyo Co., Ltd.

Forward Citations = 31

6 inventors:

Hironari Abe (2 out of 2 patents)

Toshio Sawa (2 out of 4 patents)

Kosuke Abe (1 out of 1 patent)

4. Noboru Ishikawa (1 out of 1 patent)

5. Atsushi Kasahara (1 out of 2 patents)

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