Issued Patents 2003
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6546815 | Reading method of screw rotation angle of hand-held impact wrench, hand-vibration detection method, tightening evaluation method and control method of hand-held power screw loosening tool | Masakazu Yamada, Ryoichi Shibata | 2003-04-15 |