Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12372557 | Excitation current detection circuit and semiconductor device | Shinji Aso, Toshihiro Nakano, Hiroshi Hosoya | 2025-07-29 |
| 12126267 | Resonant converter with a synchronous rectifier controller having ontime and offtime counting | Eunsuk Lee, Jungyul Kim, Masaaki Shimada, Shinji Aso, Hanju Kang | 2024-10-22 |
| 11973431 | Switching power supply apparatus | Eunsuk Lee, Kyusam Choi, Jaekuk Yu, Shinji Aso, Hanju Kang | 2024-04-30 |
| 10879786 | Power conversion device and control circuit | Junichi Takada, Toshihiro Nakano, Koki Imai, Osamu Ohtake | 2020-12-29 |
| 10763751 | Device and method for converting input voltage to output voltage | Junichi Takada, Toshihiro Nakano, Koichi Shiotsu, Satoshi Funakoshi | 2020-09-01 |
| 10608536 | Power conversion device and control circuit | Junichi Takada, Toshihiro Nakano, Koki Imai, Osamu Ohtake | 2020-03-31 |
| 10389247 | Power conversion device and control circuit including stop transitioning to stop state | Junichi Takada, Toshihiro Nakano, Koki Imai, Osamu Ohtake | 2019-08-20 |
| 10050543 | Switching power supply device changing output voltage setting and integrated circuit for switching power supply device | Masao Ueno, Mitsugu Furuya, Takashi Matsumoto | 2018-08-14 |
| 9742289 | Integrated circuit and switching power-supply device | Akira Hayakawa | 2017-08-22 |
| 9735694 | Integrated circuit and switching power-supply device with charging control circuit | — | 2017-08-15 |
| 9560704 | LED driving device and LED lighting apparatus | Kengo Kimura | 2017-01-31 |
| 9484812 | Direct-current power supply device | — | 2016-11-01 |
| 9172307 | Switching power source device and control IC which are capable of performing constant power control | Toshihiro Nakano, Kengo Kimura | 2015-10-27 |
| 9078324 | LED driving device, LED lighting apparatus, and error amplification circuit | — | 2015-07-07 |
| 8964430 | Active snubber circuit and power supply circuit | — | 2015-02-24 |
| 8456108 | LED lighting apparatus | Kengo Kimura | 2013-06-04 |
| 6529391 | Switching power supply | Mizuki Utsuno | 2003-03-04 |