Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5346023 | Slipping torque changing apparatus for impact tool | Yoshihiko Watanabe | 1994-09-13 |
| D349029 | Portable elecrtric hammer drill | Naoki Matsunaga, Hideaki Hasegawa, Yoshihiko Watanabe | 1994-07-26 |