Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7024895 | Electrical steering lock device and related method | Yoshio Watanuki, Ryuichi Yoshida | 2006-04-11 |
| 5570599 | Steering lock device | — | 1996-11-05 |
| 5265453 | Cylinder lock | Takeshi Fukasawa | 1993-11-30 |
| 4756174 | Automotive vehicle use steering shaft locking and unlocking arrangement | — | 1988-07-12 |