Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4541315 | Inside chuck device for machine tools | Hisanobu Kanamaru, Akira Tohkairin | 1985-09-17 |
| 4325678 | Hydraulic pressure producing system for a hydraulic press | Hisanobu Kanamaru, Moisei Okabe, Akira Tohkairin, Hideo Tatsumi | 1982-04-20 |
| 4255113 | Fluid-operated press | Seiki Dewa, Yuzuru Kikuchi, Hisanobu Kanamaru | 1981-03-10 |