For the Inventor, By the Inventor

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Sumitomo Metal Corporation

USPTO Granted Patents = 2

Forward Citations = 4

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9 inventors (with patents filed for the assignee):

Riki Okamoto (1 out of 55 patents)

Kunio Hayashi (1 out of 57 patents)

Kohichi Sano (1 out of 34 patents)

4. Koichi Sato (1 out of 146 patents)

5. Nobuhiro Fujita (1 out of 52 patents)

6. Masaaki Mizumura (1 out of 27 patents)

7. Yukihisa Kuriyama (1 out of 22 patents)

8. Kazuaki Nakano (1 out of 15 patents)

9. Manabu Wada (1 out of 20 patents)

2 patents: Sort by Forward Citations

1. 9631265 - Hot-rolled steel sheet and method for producing same (2017-04-25),

2. 8621904 - Hydroforming apparatus and method for hydroforming (2014-01-07),

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USPTO Data Jan 1 1976 - Dec 30 2025

2 Patents

#4,058 in Tokyo

#10,964 in Japan

Sumitomo Metal Corporation

Forward Citations = 4

9 inventors:

Riki Okamoto (1 out of 55 patents)

Kunio Hayashi (1 out of 57 patents)

Kohichi Sano (1 out of 34 patents)

4. Koichi Sato (1 out of 146 patents)

5. Nobuhiro Fujita (1 out of 52 patents)

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