Issued Patents All Time
Showing 1–25 of 35 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12037033 | Device state recording system and device state recording device | Tatsuhiro Yamaguchi, Yukiteru Nozawa, Hayato Toda, Yuji Miyagawa, Isao Takahashi | 2024-07-16 |
| 11400817 | Power conversion controller | Ken Kunomura, Toshimasa Shimizu, Kenji Sato, Hirokazu Kato, Toshiyuki Uchida +3 more | 2022-08-02 |
| 11097620 | Circuit system for railroad vehicle | Kohei Yamamoto, Sakio Nishimiya, Sonoko Miyajiri, Sho Sato, Hideyuki Shimizu +1 more | 2021-08-24 |
| 10637381 | Inverter control device and drive system | Tomoaki Shigeta, Shun Taniguchi, Kentaro Suzuki | 2020-04-28 |
| 10498277 | Drive system and inverter | Tomoaki Shigeta, Shun Taniguchi, Kentaro Suzuki | 2019-12-03 |
| 10158305 | Inverter controller and motor driving system | Shun Taniguchi, Kentaro Suzuki, Tomoaki Shigeta | 2018-12-18 |
| 10069390 | Synchronous reluctance rotating electric machine | Daisuke Misu, Katsutoku Takeuchi, Makoto Matsushita, Yutaka Hashiba, Norio Takahashi +1 more | 2018-09-04 |
| 9923447 | Power conversion device having improved noise characteristics, and control method thereof | Shun Taniguchi, Kazuya Yasui, Yoshitake Kamijo | 2018-03-20 |
| 9853508 | Synchronous reluctance motor and rotor for synchronous reluctance motor | Syou Fukumoto, Koji Ooishi, Makoto Matsushita, Daisuke Misu, Katsutoku Takeuchi +3 more | 2017-12-26 |
| 9680406 | Variable-flux motor drive system | Kazuto Sakai, Hiroshi Mochikawa | 2017-06-13 |
| 9496774 | Permanent magnet electric motor | Yutaka Hashiba, Kazuto Sakai, Norio Takahashi, Masanori Arata, Yusuke Matsuoka +2 more | 2016-11-15 |
| 9490684 | Permanent magnet electric motor | Yutaka Hashiba, Kazuto Sakai, Norio Takahashi, Masanori Arata, Yusuke Matsuoka +2 more | 2016-11-08 |
| 9423470 | Magnetic polarity determination device, permanent magnet synchronous motor control device, and magnetic polarity determination method | Shun Taniguchi, Kazuya Yasui, Yosuke Nakazawa | 2016-08-23 |
| 9373992 | Permanent magnet electric motor | Yutaka Hashiba, Kazuto Sakai, Norio Takahashi, Masanori Arata, Yusuke Matsuoka +2 more | 2016-06-21 |
| 9327604 | Electric vehicle control apparatus and electric vehicle | Shinichi Toda, Ikuo Yasuoka, Yasufumi Mochizuki | 2016-05-03 |
| 8884576 | Variable-flux motor drive system | Kazuto Sakai, Hiroshi Mochikawa | 2014-11-11 |
| 8860356 | Variable magnetic flux motor drive system | Kazuto Sakai, Hiroshi Mochikawa | 2014-10-14 |
| 8836161 | Rolling stock system and control method thereof | Masayuki Nogi, Katsuhisa Inagaki, Yosuke Nakazawa, Satoshi Koizumi | 2014-09-16 |
| 8796898 | Permanent magnet electric motor | Yutaka Hashiba, Kazuto Sakai, Norio Takahashi, Masanori Arata, Yusuke Matsuoka +2 more | 2014-08-05 |
| 8653710 | Permanent magnet electric motor | Norio Takahashi, Kazuto Sakai, Yutaka Hashiba, Masanori Arata, Yusuke Matsuoka +1 more | 2014-02-18 |
| 8624457 | Permanent magnet electric motor | Kazuto Sakai, Yutaka Hashiba, Norio Takahashi | 2014-01-07 |
| 8584595 | Vehicle drive apparatus | Taihei Koyama, Shinichi Noda, Shigetomo Shiraishi, Daisuke Misu | 2013-11-19 |
| 8569921 | Permanent-magnet type electric rotating machine | Kazuto Sakai, Yutaka Hashiba, Norio Takahashi, Makoto Matsushita, Daisuke Misu +4 more | 2013-10-29 |
| 8552678 | Variable-flux motor drive system | Kazuto Sakai, Hiroshi Mochikawa | 2013-10-08 |
| 8519649 | Control device of a synchronous motor | Shun Taniguchi, Kazuya Yasui, Yosuke Nakazawa | 2013-08-27 |