Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4463376 | Television signal processing system for a wireless pay system | Hiroshi Osaka, Akira Honma | 1984-07-31 |
| 4429331 | Video cipher processing system | — | 1984-01-31 |
| 4369462 | Coding system for pay television | Akimori Tomizawa, Hiroshi Osaka | 1983-01-18 |