Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6206814 | Composite work roll for cold rolling | Taku Tanaka, Seiji Otomo, Mitsuo Hashimoto, Katsutoshi Hokimoto, Akira Itoh | 2001-03-27 |
| 5419973 | Composite roll for rolling and process for producing the same | Mitsuo Hashimoto, Seiji Otomo, Kenzo Sawada, Shigeru Uchida | 1995-05-30 |