Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5666185 | Method for recording a digital audio signal on a motion picture film | — | 1997-09-09 |
| 5615055 | Dual-mode digital signal recording and/or reproducing apparatus | Shinichi Fukuda, Akio Tanaka | 1997-03-25 |