Issued Patents 2020
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10780563 | Electric power tool and method of controlling rotational speed of motor in electric power tool | Hirokatsu Yamamoto, Ryo UMEMOTO, Kunihisa Shima | 2020-09-22 |
| 10644634 | Electric power tool | — | 2020-05-05 |
| 10592151 | Work apparatus, and method of rewriting history information thereof | Hirokatsu Yamamoto | 2020-03-17 |