For the Inventor, By the Inventor

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Yamagata, Japan

Ipr Industry Co., Ltd.

USPTO Granted Patents = 3

Forward Citations = 0

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12 inventors (with patents filed for the assignee):

Koichi Hatakeyama (2 out of 7 patents)

Tomoki Takiguchi (1 out of 2 patents)

Yoshihiko Aoki (1 out of 1 patent)

4. Yuusuke Okuyama (1 out of 1 patent)

5. Mako Abe (1 out of 2 patents)

6. Yasutomo Tokairin (1 out of 1 patent)

7. Takashi Sato (1 out of 12 patents)

8. Seiji Tamaki (1 out of 4 patents)

9. Takashi Oizumi (1 out of 3 patents)

10. Naoki Umeda (1 out of 4 patents)

11. Kiyoyuki Kawai (1 out of 38 patents)

12. Masayuki Ohira (1 out of 2 patents)

3 patents: Sort by Forward Citations

1. 11680537 - Cylinder liner and cylinder bore (2023-06-20),

2. 11168642 - Cylinder liner for cast-covering, and method for manufacturing cylinder block (2021-11-09),

3. 11141783 - Cylinder liner for insert casting (2021-10-12),

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USPTO Data Jan 1 1976 - Jan 6 2026

3 Patents

#15 in Yamagata

#8,771 in Japan

Yamagata, Japan

Ipr Industry Co., Ltd.

Forward Citations = 0

12 inventors:

Koichi Hatakeyama (2 out of 7 patents)

Tomoki Takiguchi (1 out of 2 patents)

Yoshihiko Aoki (1 out of 1 patent)

4. Yuusuke Okuyama (1 out of 1 patent)

5. Mako Abe (1 out of 2 patents)

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