Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11218107 | Control device for power converter | Ryuuji Yasumoto, Naoto Kobayashi, Minoru Kitou | 2022-01-04 |
| 10651757 | Inverter with reduced output ripple | Tatsuki Inoue | 2020-05-12 |
| 10305405 | Speed command correction device and primary magnetic flux command generation device | Minoru Kitou, Naoto Kobayashi, Hiroshi Hibino, Ryou Matsuyama | 2019-05-28 |
| 10298158 | Controller for electric motor | Hiroshi Hibino | 2019-05-21 |
| 10110150 | Primary magnetic flux control method | Takeshi Araki, Naoto Kobayashi | 2018-10-23 |
| 9634580 | Power converter controller | Michihiro Nakagawa, Naoto Kobayashi | 2017-04-25 |
| 9479100 | Electric motor controller | Takeshi Araki, Naoto Kobayashi | 2016-10-25 |
| 9018871 | Power conversion apparatus | Takeshi Ashida, Hiroshi Hibino, Naoto Kobayashi, Michihiro Nakagawa, Masaki Kouno | 2015-04-28 |
| 8182245 | Inverter driven compressor operation method and compressor drive device | Hirohito Maeda, Keisuke Shimatani, Masakazu Katou, Takeomi Ukai, Hironobu Mizobe | 2012-05-22 |
| 7579800 | Motor control method and device thereof | — | 2009-08-25 |
| 6208109 | Synchronous motor driving method, compressor driving method, device for the methods, and brushless DC motor driving device | Hiroyuki Yamai, Yoshihito Sanga, Manabu Kosaka | 2001-03-27 |
| 5739650 | Motor system capable of obtaining high efficiency and method for controlling a motor | Taizou Kimura, Kiyotaka Nishijima, Hiroyuki Yamai, Akio Yamagiwa, Kazunobu Ooyama | 1998-04-14 |