Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11607789 | Technique for detecting twisted motion of electric working machine | Hikaru SUNABE, Hirokatsu Yamamoto | 2023-03-21 |
| 11325228 | Rotary impact tool | Hirokatsu Yamamoto, Goshi Ishikawa, Kunihisa Shima | 2022-05-10 |
| 10953524 | Impact fastening tool | Masahiko Sako, Hirokatsu Yamamoto | 2021-03-23 |
| 10953532 | Electric power tool configured to detect twisted motion | Hikaru SUNABE, Hirokatsu Yamamoto | 2021-03-23 |
| 9737984 | Power tool | Hirokatsu Yamamoto, Manabu Sugimoto | 2017-08-22 |
| 9425730 | Apparatus for estimating quantity of state relating to motor, and electric tool | Masahiko Sako, Hirokatsu Yamamoto | 2016-08-23 |
| 8888566 | Power tool | Ryo Sunazuka, Hirokatsu Yamamoto | 2014-11-18 |