Issued Patents 2021
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11196427 | Charge pump circuit, PLL circuit, and oscillator | Akio Tsutsumi, Ryo ICHIKAWA, Yasunari Furuya | 2021-12-07 |
| 11165433 | Charge pump, PLL circuit, and oscillator | Ryo ICHIKAWA | 2021-11-02 |
| 11043954 | Oscillation circuit, oscillator, communication device, and method of controlling oscillation circuit | Hideo Haneda, Akio Tsutsumi | 2021-06-22 |