Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7828074 | Hammer drill | Hiroyuki Tsubakimoto, Koichi Hashimoto, Hisashi Oda, Hidekazu Yuasa | 2010-11-09 |
| 7694750 | Hammer drill | Hiroyuki Tsubakimoto, Koichi Hashimoto, Hisashi Oda, Hidekazu Yuasa | 2010-04-13 |
| 5964039 | Cutting method and saw tool | Soichiro Mizoguchi, Hidezumi Okamura, Hideo Hatta, Shoichi Hongo | 1999-10-12 |
| 5044233 | Depth adjuster for rotary tools such as screwdrivers | Masao Torigoe, Syoichi Hongo, Masao Yamamoto | 1991-09-03 |
| 5031925 | Keyless chuck for rotary tool | Masao Torigoe | 1991-07-16 |
| 4695065 | Keyless chuck for rotary tool | Teruaki Komatsu, Kiyoshi Kobayashi, Shoichi Shibata | 1987-09-22 |