Issued Patents All Time
Showing 1–25 of 90 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12170496 | Motor control device | Kenji Fujiwara, Hisatoshi Fukumoto, Tomoki TAKEGAMI, Tetsuya Kojima, Masahiro Sugahara +3 more | 2024-12-17 |
| 12074522 | Power conversion device with parallel DC-DC coverters and multiple driving modes | Kenji Fujiwara, Hisatoshi Fukumoto | 2024-08-27 |
| 12015361 | Motor control device | Kenji Fujiwara, Hisatoshi Fukumoto, Tomoki TAKEGAMI, Tetsuya Kojima, Masahiro Sugahara +3 more | 2024-06-18 |
| 11848600 | Power conversion device with control circuit to adjust a common mode voltage of combined output voltages | Masahiro Sugahara, Kenji Fujiwara, Hisatoshi Fukumoto | 2023-12-19 |
| 11804788 | Power converter | Tetsuya Kojima, Hisatoshi Fukumoto, Kenji Fujiwara | 2023-10-31 |
| 11539292 | Power converter control device with feedforward | Shuichi Nagato, Miwako TANAKA | 2022-12-27 |
| 11233453 | Power conversion device including a boosting converter for boosting output voltage from a DC power supply | Shuta Ishikawa, Tatsuki MATSUNAGA, Koyo MATSUZAKI | 2022-01-25 |
| 11108319 | Power conversion device with an intermediate capacitor and a smoothing capacitor | Tatsuki MATSUNAGA, Shuta Ishikawa | 2021-08-31 |
| 11020823 | Laser diode driving power source and laser machining device | Taichiro Tamida, Shingo Tsuda, Teruaki Fukuoka, Hiroshi Ikarashi, Takeshi Morimoto | 2021-06-01 |
| 10782260 | Electrostatic capacitance detection device and power conversion apparatus | Taichiro Tamida, Takahiro Inoue, Takashi Hashimoto, Shuhei Koyama, Takahiko Kobayashi | 2020-09-22 |
| 10756629 | Power conversion device | Shuta Ishikawa, Tatsuki MATSUNAGA | 2020-08-25 |
| 10720850 | Power converter with different output voltages for plurality of loads | Shuta Ishikawa, Tatsuki MATSUNAGA | 2020-07-21 |
| 10522971 | Laser diode-driving power supply and laser machining apparatus | Shingo Tsuda, Takeshi Morimoto, Taichiro Tamida, Teruaki Fukuoka, Hiroshi Ikarashi | 2019-12-31 |
| 10418915 | Refrigeration cycle apparatus | Kazuhiko Kawai, Tomoaki Kobata, Yusuke KOYAMA | 2019-09-17 |
| 9998007 | Boost converter with flying capacitor and refrigeration circuit | Kenta Yuasa, Shinsaku Kusube, Akihiro Tsumura | 2018-06-12 |
| 9941834 | Power conversion apparatus and air-conditioning apparatus including the power conversion apparatus | Keiwa Tsukano, Shinsaku Kusube, Kenta Yuasa, Akihiro Tsumura | 2018-04-10 |
| 9677941 | Object movement control device and fourier transform infrared spectrophotometer | — | 2017-06-13 |
| 9550245 | Electric discharge machining apparatus, electric discharge machining method, and semiconductor substrate manufacturing method | Taichiro Tamida, Takashi Hashimoto, Tatsushi Sato | 2017-01-24 |
| 9197126 | Power converting apparatus | Masaki Yamada, Takahiro Urakabe, Norikazu Ito | 2015-11-24 |
| 8866342 | Power converting apparatus | Takeshi Oi, Masato Koyama | 2014-10-21 |
| 8861235 | Power converting apparatus | Satoshi Azuma, Takeshi Oi | 2014-10-14 |
| 8754549 | Power conversion device | Tomoyuki Kawakami, Tatsuya Okuda | 2014-06-17 |
| 8659924 | Power conversion apparatus | Masaki Yamada | 2014-02-25 |
| 8649196 | Power converting apparatus with an output voltage that is the sum of voltages generated by individual inverters | Kenji Fujiwara | 2014-02-11 |
| 8625307 | DC to AC power converting apparatus | Hiroshi Ito | 2014-01-07 |