Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5051846 | Magnetic video tape recording and reproducing apparatus | Takuya Tsushima, Akira Hirota, Naomichi Nishimoto | 1991-09-24 |
| 4734798 | Magnetic recording and reproducing apparatus | Hiroyuki Umeda | 1988-03-29 |
| 4656527 | Magnetic recording and playback apparatus | — | 1987-04-07 |
| 4635140 | Digital recording/playback system with limited frequency range | — | 1987-01-06 |
| 4425584 | Video signal recording and/or reproducing system | Akira Hirota | 1984-01-10 |
| 4414586 | Pilot signal recording and reproducing system | Akira Hirota, Seisuke Hiraguri | 1983-11-08 |