Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5712836 | Apparatus and method for adjusting a rotational velocity of a disk storage medium with measuring the amount of time to reproduce address data stored thereon | Shigeaki Wachi | 1998-01-27 |
| 5708649 | Optical disk capable of storing information data at difference clock rates | Shigeaki Wachi | 1998-01-13 |
| 5640383 | Apparatus and method for reproducing data from a record medium | Shigeaki Wachi | 1997-06-17 |
| 4805054 | Recording and/or reproducing device for the flexible magnetic disk | Hiroshi Yamanouchi, Shogo Takahashi, Toru Takamiya, Yoshimasa Gouda | 1989-02-14 |
| 4232371 | Apparatus for indicating the amount of tape wound upon a reel | — | 1980-11-04 |