Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5129467 | Electric hammer drill having dust collecting device | Yoshihiko Watanabe, Yasuki Ohmori | 1992-07-14 |
| 4401167 | Vibratory tool with a vibration proof mechanism for the handle thereof | Yasuo Sasaki | 1983-08-30 |