Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5010575 | Audio current pick-up device | Yozo Marutake, Tatsuro Fukutome | 1991-04-23 |
| 4489330 | Electromagnetic induction coil antenna | Yozo Marutake, Tatsuro Fukutome, Hideo Motohashi | 1984-12-18 |