Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4359769 | Signal reproduction apparatus | Kazuhiko Sano | 1982-11-16 |
| D264397 | Record disc package | Makoto Fujita, Izumi Hino | 1982-05-18 |
| 4302411 | Method of producing plate-shaped body | Tokihalu Nakagawa | 1981-11-24 |