Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11588404 | Semiconductor device and step-down multi-phase DC/DC converter | — | 2023-02-21 |
| 10608534 | DC/DC converter for providing function of noise countermeasures, control circuit thereof, control method thereof, and electronic apparatus including the DC/DC converter | Tetsuro Hashimoto | 2020-03-31 |
| 9685858 | DC/DC converter, control circuit and control method thereof, and electronic apparatus | Shun Fukushima | 2017-06-20 |
| 9343969 | Switching regulator, control circuit and control method thereof, and electronic apparatus | — | 2016-05-17 |
| 9331573 | Circuit and method for controlling a switching transistor of a switching regulator | — | 2016-05-03 |
| 9300211 | DC/DC converter, control circuit thereof, and electronic apparatus | — | 2016-03-29 |
| 9223328 | Switching regulator, control circuit and control method thereof, and electronic apparatus | — | 2015-12-29 |
| 7724551 | Step-up circuit and portable device using it | Yoshinori Imanaka | 2010-05-25 |
| 7453711 | Step-up power supply unit and portable apparatus utilizing the same | Kunihiro Komiya | 2008-11-18 |