Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5312208 | Burnishing drill | Kiyotaka Shiga, Nobuya Matsushita, Akio Fukui, Manabu Shimizu | 1994-05-17 |
| 5282705 | Burnishing drill | Kiyotaka Shiga, Akio Fukui, Masaki Yasuhara, Manabu Shimizu | 1994-02-01 |
| 4305209 | Adaptor | — | 1981-12-15 |