Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6719570 | Card-type portable device | — | 2004-04-13 |
| 5874859 | High-frequency amplifier integrated-circuit device | Nobumitsu Amachi, Yasushi Yamamoto, Koichi Sakamoto | 1999-02-23 |