Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5115362 | Cassette changer for tape player | Tamotsu Harada, Gen Kumagai, Kiyoshi Yanagida, Nagaki Fujioka, Akiharu Yagi +2 more | 1992-05-19 |
| 4446439 | Frequency/voltage conversion circuit | Kastuji Mizumoto | 1984-05-01 |