Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5950310 | Forged roll for rolling a seamless steel pipe and manufacturing method of same | Taro Kanayama, Akira Yorifuji, Toshiaki Kasuya, Yuichiro Sato, Satoshi Matsuoka | 1999-09-14 |
| 5813962 | Forged roll for rolling a seamless steel pipe | Taro Kanayama, Akira Yorifuji, Toshiaki Kasuya, Yuichiro Sato, Satoshi Matsuoka | 1998-09-29 |