Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11387821 | Pulse signal sending circuit | — | 2022-07-12 |
| 9048729 | Step-up/down DC-DC converter and switching control circuit | Takashi Hiroshima | 2015-06-02 |
| 8957650 | Step-up/down DC-DC converter and switching control circuit | Takashi Hiroshima | 2015-02-17 |
| 8310219 | DC-DC converter with a PWM mode and a continuously on mode | Masaki Kuroyabu, Takashi Hiroshima | 2012-11-13 |
| 8193793 | DC-DC converter | Takashi Hiroshima | 2012-06-05 |
| 7977889 | Direct-current power supply device, power supply device for driving LED and semiconductor integrated circuit for driving power supply | Takashi Hiroshima | 2011-07-12 |
| 7977890 | Direct current power supply device, power supply device for driving LED and semiconductor integrated circuit for controlling power supply | — | 2011-07-12 |
| 7733070 | Multi-output type DC/DC converter | — | 2010-06-08 |
| 7378823 | Multi-output type DC/DC converter with a constant on time interval in a steady state | Yuji Yamanaka, Tatsuya Inenaga, Takeshi Satou | 2008-05-27 |
| 7372239 | Multi-output type DC/DC converter | Yuji Yamanaka | 2008-05-13 |