Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5235784 | Handy air tool | Yasumasa Oki, Katsunobu Kishi, Kenji Fukuda | 1993-08-17 |
| 5217334 | Annular hole cutter | Osahiko Miyazaki | 1993-06-08 |
| D324632 | Electric chamfering machine | Shigeru Yasuda | 1992-03-17 |
| 5069421 | Safety device for a pneumatic tool | Katsunobu Kishi | 1991-12-03 |