Issued Patents All Time
Showing 1–25 of 40 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11876435 | DC/DC conversion system, electricity storage system, and method for controlling DC/DC converter | — | 2024-01-16 |
| 11404974 | Power converter for performing conversion from DC to AC or vice versa, and method for controlling the power converter | — | 2022-08-02 |
| 11217842 | Power storage device | Tetsuo Akita, Mitsuyasu Ueda | 2022-01-04 |
| 11139657 | Power conversion system and control method therefor | Yoshiharu Nakajima, Yusuke Shimizu | 2021-10-05 |
| 11031807 | Power supply device and power supply system | Tetsuo Akita | 2021-06-08 |
| 10917022 | Power conversion device and control method for power conversion device | Tetsuo Akita, Yusuke Shimizu | 2021-02-09 |
| 10644614 | Conversion device having a control unit for detecting arm short-circuit | Yuji Okuda | 2020-05-05 |
| 10530238 | Power conversion device and method for controlling same | Tetsuo Akita | 2020-01-07 |
| 10476259 | Power conversion device and method for determining operational state of breaking device | Toshiaki Okumura, Koichi Takeshita, Fumio Urakawa, Shinjirou Shinada, Tadatsugu Udono | 2019-11-12 |
| 10461625 | Power conversion device and control method for same | Toshiaki Okumura | 2019-10-29 |
| 10411501 | Power supply device and switch control method therefor | Tetsuo Akita | 2019-09-10 |
| 10355519 | Power supply unit and method for backfeed protection thereof | Tetsuo Akita, Koichi Takeshita, Tomohiro Yamaguchi | 2019-07-16 |
| 10355620 | Conversion device | Toshiaki Okumura, Tetsuo Akita, Kenji Abiru | 2019-07-16 |
| 10348190 | Conversion device for converting voltage in a non-insulated manner and method for controlling the same | Yusuke Shimizu, Tetsuo Akita, Toshiaki Okumura | 2019-07-09 |
| 10340814 | Gate-blocking a DC/DC converter based upon output current of an AC reactor in a power conversion device | Yusuke Shimizu, Tetsuo Akita | 2019-07-02 |
| 10284113 | Power conversion device performing DC/AC power conversion via intermediate bus, and control method thereof | — | 2019-05-07 |
| 10277036 | Inverter device | Kenji Abiru, Toshiaki Okumura | 2019-04-30 |
| 10193434 | Power conversion device and three-phase AC power supply device | Toshiaki Okumura | 2019-01-29 |
| 9882508 | High-frequency switching type conversion device | Tetsuo Akita, Toshiaki Okumura, Kenji Abiru | 2018-01-30 |
| 9831676 | Power conversion device and three-phase AC power supply device | Toshiaki Okumura | 2017-11-28 |
| 9800177 | Conversion device | Takashi Fumino, Yoshiharu Nakajima | 2017-10-24 |
| 9748865 | Power conversion device and three-phase alternating current power supply device | — | 2017-08-29 |
| 9722508 | Power conversion device and three-phase alternating current power supply device | Koichi Takeshita | 2017-08-01 |
| 9627995 | Inverter device with a control unit | Kenji Abiru, Toshiaki Okumura | 2017-04-18 |
| 8238991 | Precursor wire of oxide superconducting wire and production method thereof and oxide superconducting wire produced by using the precursor wire | — | 2012-08-07 |