Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5307518 | Double-balanced mixer | Wataru Takegawa, Yoshikuni Higashikawa, Akimasa Matsushima | 1994-04-26 |
| 5140706 | Transmission-line transformer device for double-balanced miner | Wataru Takegawa, Yoshikuni Higashikawa, Akimasa Matsushima | 1992-08-18 |
| 4870701 | Connecting structure of diodes | Katsuo Ito, Toichiro Sawabe | 1989-09-26 |