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Pacific Steel Mfg. Co., Ltd.

USPTO Granted Patents = 2

Forward Citations = 2

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6 inventors (with patents filed for the assignee):

Yuichiro Sato (2 out of 3 patents)

Akira Yorifuji (2 out of 20 patents)

Taro Kanayama (2 out of 7 patents)

4. Shoitsu Seo (2 out of 2 patents)

5. Toshiaki Kasuya (2 out of 2 patents)

6. Satoshi Matsuoka (2 out of 2 patents)

2 patents: Sort by Forward Citations

1. 5950310 - Forged roll for rolling a seamless steel pipe and manufacturing method (1999-09-14),

2. 5813962 - Forged roll for rolling a seamless steel pipe (1998-09-29),

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USPTO Data Jan 1 1976 - Dec 30 2025

2 Patents

#602 in

#10,964 in Japan

Pacific Steel Mfg. Co., Ltd.

Forward Citations = 2

6 inventors:

Yuichiro Sato (2 out of 3 patents)

Akira Yorifuji (2 out of 20 patents)

Taro Kanayama (2 out of 7 patents)

4. Shoitsu Seo (2 out of 2 patents)

5. Toshiaki Kasuya (2 out of 2 patents)

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