Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11431348 | Two-capacitor digital-to-analog converter | Abdullah Ahmed, Taichiro Kawai | 2022-08-30 |
| 10951181 | Methods and apparatus for an amplifier circuit | — | 2021-03-16 |
| 10868563 | Methods and apparatus for an analog-to-digital converter | — | 2020-12-15 |
| 10833641 | Methods and apparatus for an amplifier circuit | — | 2020-11-10 |
| 10757504 | Methods and apparatus for controlling a bias voltage | — | 2020-08-25 |
| 10165356 | Methods and apparatus for controlling a bias voltage | — | 2018-12-25 |
| 10056915 | Digital-to-analog converter | — | 2018-08-21 |
| 9874894 | Temperature stable reference current | — | 2018-01-23 |
| 9787320 | Methods and apparatus for an analog-to-digital converter | — | 2017-10-10 |
| 9692440 | Circuit for generating a reference current proportional to square of clock frequency | — | 2017-06-27 |
| 9647679 | Methods and apparatus for a delta sigma ADC with parallel-connected integrators | — | 2017-05-09 |
| 9641192 | Methods and apparatus for a delta sigma ADC with parallel-connected integrators | — | 2017-05-02 |
| 9628101 | Methods and apparatus for an analog-to-digital converter | — | 2017-04-18 |
| 9553139 | Semiconductor component and method of manufacture | Takashi Oomikawa | 2017-01-24 |
| 9014398 | Charging circuit and amplifier | — | 2015-04-21 |
| 8773831 | Semiconductor integrated circuit | Yasuhiro Hinokuma, Kazuyuki Kobayashi, Kengo Murase | 2014-07-08 |
| 8693707 | Signal processing circuit | — | 2014-04-08 |
| 8374363 | Amplifier circuit of capacitor microphone | — | 2013-02-12 |
| 8344796 | Switched capacitor circuit | — | 2013-01-01 |
| 7403151 | Switch control circuit, ΔΣ modulation circuit, and ΔΣ modulation AD converter | — | 2008-07-22 |
| 7358813 | Differential operational amplifier | — | 2008-04-15 |