Issued Patents 2021
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11192223 | Tool holding apparatus and power tool, and impact tool | Ryunosuke Kumagai, Tomoyuki Kondo | 2021-12-07 |
| 11161227 | Electric working machine and method for controlling motor of electric working machine | Itsuku Kato, Akira Tomonaga, Katsuna Hayashi, Tomoyuki Kondo | 2021-11-02 |
| 11045926 | Impact tool | Ryunosuke Kumagai, Hidenori Nagasaka, Manabu Sugimoto | 2021-06-29 |
| 10967496 | Impact tool | Ryunosuke Kumagai | 2021-04-06 |
| 10906163 | Power tool | Hidenori Nagasaka, Ryunosuke Kumagai, Koji Tsukamoto, Tomonori Kawase, Kosuke Ito +1 more | 2021-02-02 |