Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5658132 | Power supply for vibrating compressors | Naoki Akazawa | 1997-08-19 |
| 5656896 | Power supply for vibrating compressors | Naoki Akazawa | 1997-08-12 |
| 5257174 | Engine-driven power generating system with over-current protection and stator teeth with grooves on a top surface | Keisuke Okada, Hiroshi Kobiyama | 1993-10-26 |
| 5169348 | Automatic planing control system | Hitoshi Kotajima | 1992-12-08 |
| D267323 | Electric refrigerator | — | 1982-12-21 |