Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9302376 | Rotary tool | Kazuya Sakamaki, Shinichi Ookubo, Yasunori Takahashi | 2016-04-05 |
| 8302701 | Electric power tool and motor control method thereof | Kouichirou Morimura | 2012-11-06 |
| 7858219 | Locking mechanism of battery pack | Michio Yamashita | 2010-12-28 |
| 7534076 | Core bit | Michio Yamashita, Naohide Murakami | 2009-05-19 |
| 7308949 | Concrete drill | Motoshige Akatsu, Naohide Murakami | 2007-12-18 |
| 7241087 | Core bit | Michio Yamashita, Naohide Murakami | 2007-07-10 |
| 7204321 | Concrete drill | Motoshige Akatsu, Naohide Murakami | 2007-04-17 |