Issued Patents All Time
Showing 1–25 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11764668 | Control device for controlling an electric power conversion device incorporating a bidirectional inverter | Tatsuya Miyazaki, Yuta OKAWAUCHI, Hirotaka OTAKE | 2023-09-19 |
| 11245342 | AC power supply device | Hirotaka OTAKE, Tatsuya Miyazaki | 2022-02-08 |
| 10886859 | Alternating-current power supply device with windings wound in different directions | Hirotaka OTAKE, Yusuke NAKAKOHARA | 2021-01-05 |
| 10819247 | Direct-current power supply device with primary and secondary magnetic cores | Hirotaka OTAKE | 2020-10-27 |
| 9819275 | Power supply device | Hirotaka OTAKE, Yusuke NAKAKOHARA | 2017-11-14 |
| 8368364 | DC-DC converter with snubber circuit | Hideki Asuke, Hideharu Takano, Masayoshi Yamamoto, Takahiro Kawashima, Shigeyuki Funabiki | 2013-02-05 |
| 8369112 | Multiphase resonant DC/DC converter | — | 2013-02-05 |
| 8111053 | DC-DC converter | Hideki Asuke, Hideharu Takano, Masashi Ochiai, Masayoshi Yamamoto, Takahiro Kawashima +1 more | 2012-02-07 |
| 7915875 | Current-mode controlled DC-DC converter | Hideki Asuke, Hideharu Takano, Masaki Kanazawa, Masayoshi Yamamoto, Hiroyuki Horii +1 more | 2011-03-29 |
| 7868353 | Solid-state switch capable of bidirectional operation | Osamu Machida | 2011-01-11 |
| 7638900 | Bi-directional DC-DC converter | Hideki Asuke, Hideharu Takano, Masaki Kanazawa, Masayoshi Yamamoto, Hirotaka Hara +1 more | 2009-12-29 |
| 7532488 | DC converter | — | 2009-05-12 |
| 7525822 | DC converter including a tertiary winding for driving synchronous rectifiers | Shinji Aso, Makoto Sato | 2009-04-28 |
| 7466110 | Power factor improving circuit | — | 2008-12-16 |
| 7426119 | Switching power supply apparatus | — | 2008-09-16 |
| 7405951 | Switching power supply device | — | 2008-07-29 |
| 7304868 | DC converter | Shinji Aso, Makoto Sato | 2007-12-04 |
| 7298631 | Switching power source apparatus | — | 2007-11-20 |
| 7276884 | DC/DC converter | — | 2007-10-02 |
| 7230488 | Amplifying circuit, noise reducing apparatus and power converting apparatus | — | 2007-06-12 |
| 7218535 | DC conversion apparatus | — | 2007-05-15 |
| 7196913 | DC conversion apparatus | Shinji Aso, Makoto Sato | 2007-03-27 |
| 7187564 | Switching power supply unit | — | 2007-03-06 |
| 7183753 | Power factor correction circuit | — | 2007-02-27 |
| 7183754 | DC/DC converter | — | 2007-02-27 |