Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5697280 | All purpose saw blade | Akiyoshi Yoneda, Kunihiko Okada | 1997-12-16 |
| 5501129 | All purpose saw blade | Akiyoshi Yoneda, Kunihiko Okada | 1996-03-26 |
| 4874079 | Article transferring conveying system | Robert Leland Frenkel, Christopher S. Derks | 1989-10-17 |