Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12107599 | Digital-analog converter and digital-analog converter circuit | — | 2024-10-01 |
| 10725489 | Semiconductor device | — | 2020-07-28 |
| 9582019 | Semiconductor device | — | 2017-02-28 |
| 9553603 | R-2R ladder resistor circuit, ladder resistor type D/A conversion circuit, and semiconductor device | — | 2017-01-24 |
| 8390222 | Brushless motor driving circuit | Kunio Seki, Kazutaka Inoue, Yuichi Ohkubo | 2013-03-05 |
| 5309440 | ISDN user-network interface system | Hajime Nakamura, Fumio Watanabe, Masanobu Fujioka | 1994-05-03 |