Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6203344 | Jack, reproducing apparatus and data communication system | — | 2001-03-20 |
| 4820940 | Control circuits operating with pulse-width modulated signals | Shigeaki Wachi, Fumihiko Yoshii | 1989-04-11 |
| 4656617 | Start-control method and circuit for optical disc play-back system | Takashi Nakatsuyama | 1987-04-07 |