Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6350195 | Side visor with ventilation function for car | — | 2002-02-26 |
| 6224479 | Ventilation system for car window | — | 2001-05-01 |
| 5742189 | Frequency conversion circuit and radio communication apparatus with the same | Hiroshi Yoshida, Miyuki Ogura, Shoji Otaka | 1998-04-21 |
| 5422598 | High-frequency power amplifier device with drain-control linearizer circuitry | Tadahiko Maeda, Shuichi Obayashi, Syuuichi Sekine | 1995-06-06 |