Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6843090 | Rolling device for ring | Hideshi Sato, Katsuyuki Nakajima | 2005-01-18 |
| 6726547 | Cutting device for sheet metal drum | Yuji Narusaki, Yoshiharu Watabe, Takehisa Kimura, Tomotsugu Takahashi, Toru Nagakura | 2004-04-27 |