Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4688248 | Pay television system | — | 1987-08-18 |
| 4500921 | AGC Arrangement for a television system | Hiroshi Osaka | 1985-02-19 |
| 4369462 | Coding system for pay television | Hiroshi Osaka, Ryokichi Kanai | 1983-01-18 |
| 4350848 | Data transmission system | Masatane Kariya | 1982-09-21 |
| 4250524 | Validation apparatus in a pay television system | — | 1981-02-10 |