Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6220758 | Roller supporting device | Akira Ono, Arihiro Kimura, Hiroshi Naitoh, Koichi Yamamoto, Takayuki Shibayama | 2001-04-24 |
| 6056442 | Roller supporting device | Akira Ono, Arihiro Kimura, Hiroshi Naitoh, Koichi Yamamoto, Takayuki Shibayama | 2000-05-02 |