Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5717667 | Optical pickup apparatus including an optical rotation device | Hideyoshi Horimai | 1998-02-10 |
| 5663940 | Optical pickup apparatus including hologram element | Hideyoshi Horimai | 1997-09-02 |
| 5282190 | Data storage disk drive with a piezoelectric member and a resilient member between a head and a disk | Junichi Toyoda | 1994-01-25 |
| 4438398 | Position detecting signal generator | Masaomi Inagaki | 1984-03-20 |