Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9812959 | Step up/down switching regulator | Shinya Shimizu | 2017-11-07 |
| 9584019 | Switching regulator and control method thereof | — | 2017-02-28 |
| 8669749 | Switching power supply unit | — | 2014-03-11 |
| 8295064 | Operation control method of charge pump circuit | — | 2012-10-23 |
| 8278991 | Power supply circuit and method for controlling the same | — | 2012-10-02 |
| 7986109 | Load driving circuit and method of setting load current thereof | Toshiki Kishioka | 2011-07-26 |
| 7564196 | Power supply device, and LED device and electronic device using same | Toshiki Kishioka, Koichi Hagino | 2009-07-21 |