Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11742774 | Switch driving device and switching power supply using the same | Kenji Hamachi | 2023-08-29 |
| 11424691 | Switch driving device and switching power supply using the same | Kenji Hamachi | 2022-08-23 |
| 11356029 | Rectifying circuit and switched-mode power supply incorporating rectifying circuit | Kenji Hamachi | 2022-06-07 |
| 10554118 | Power supply device | Kyoji Marumoto | 2020-02-04 |
| 9985627 | Drive circuit and module equipped with same | Hiroyuki Hatano | 2018-05-29 |
| 8582268 | Circuit for preventing inrush current | Yudai Yamamoto | 2013-11-12 |
| 8456879 | Switching power supply apparatus | Eiji Miyake | 2013-06-04 |
| 8351230 | Switching power supply with plural resonant converters and variable frequency | Hideki Nishihara | 2013-01-08 |
| 8059431 | Switching power supply | Hideki Nishihara | 2011-11-15 |
| 7545103 | Cold-cathode tube lighting device for use in a plurality of cold-cathode tubes lit by one low-impedance power source | Eiji Miyake, Kenji Kawataka, Toshio Manabe | 2009-06-09 |
| 7446512 | Resonant switching power supply device | Hideki Nishihara | 2008-11-04 |
| 7436130 | Cold-cathode tube lighting device for use in a plurality of cold-cathode tubes lit by two low-impedance power sources | Eiji Miyake, Kenji Kawataka | 2008-10-14 |
| 7164340 | Transformer for switching power supply | Jun Nakagawa, Kenji Kawataka | 2007-01-16 |
| 7038397 | Cold cathode fluorescent lamp driver circuit | Eiji Miyake, Kenji Kawataka | 2006-05-02 |
| 6373730 | Switching power supply | Nobutake Yamaichi | 2002-04-16 |