Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4855835 | AFT circuit for CATV receiver system | — | 1989-08-08 |
| 4771457 | Subscription television system | — | 1988-09-13 |
| 4723287 | Demodulating system for multivoice system | Tamaki Yoshimoto | 1988-02-02 |
| 4692803 | CATV converter having phase locked loop for sound carrier wave frequency control | — | 1987-09-08 |
| 4589017 | Pay television receiving system | — | 1986-05-13 |
| 4517595 | Pay television channel selector | — | 1985-05-14 |
| 4514757 | CATV selection device | Tasuku Noji | 1985-04-30 |
| 4352205 | Tuning system | Masaki Kato | 1982-09-28 |
| 4274066 | Quartz crystal oscillator | Akiyuki Yoshisato | 1981-06-16 |
| 4224580 | Quartz crystal oscillator | Akiyuki Yoshisato | 1980-09-23 |