Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5636191 | Positioning control system utilizing optical beam having servo-error signal generating circuit | Akira Minami, Michio Matsuura, Hiromichi Kuwano, Kazuyuki Tamanoi | 1997-06-03 |
| 5631891 | Disk reproducing circuit with automatic gain control | Masaharu Moritsugu | 1997-05-20 |