Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5060424 | Surface grinding apparatus | Kenichi Mitsuhashi, Yoji Tomita, Yasuoki Sasaki | 1991-10-29 |
| 4918872 | Surface grinding apparatus | Kenichi Mitsuhashi, Yoji Tomita, Yasuoki Sasaki | 1990-04-24 |
| 4750915 | Composite whetstone for polishing soft metals | Yoji Tomita | 1988-06-14 |