Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4873589 | Data recorder and method | Masaki Yamada, Hiroshi Ishibashi, Shinya Ozaki | 1989-10-10 |
| 4821128 | Apparatus for recording and/or reproducing a control signal | Hisashi Asano | 1989-04-11 |
| 4811315 | Disc player with program selection control | — | 1989-03-07 |