Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D567075 | Screw | Toshiaki Yasuda | 2008-04-22 |
| D557130 | Screw | Toshiaki Yasuda | 2007-12-11 |
| 6302631 | Wood screw having a head with side ridges | Seiichiro Takasaki | 2001-10-16 |
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D567075 | Screw | Toshiaki Yasuda | 2008-04-22 |
| D557130 | Screw | Toshiaki Yasuda | 2007-12-11 |
| 6302631 | Wood screw having a head with side ridges | Seiichiro Takasaki | 2001-10-16 |