Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4858468 | Method of detecting remaining quantity of replenishing solution | Toshiro Tahara | 1989-08-22 |
| 4825313 | Method for adjustably positioning a transducer for a disc drive | Yoshihiro Moribe, Osamu Beppu | 1989-04-25 |