Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12355377 | Adjustable speed generator motor system with full power converter | Akira Bando, Takahiko Kikui, Kenta Watanabe, Masakazu Ishikawa, Tomomichi Ito +3 more | 2025-07-08 |
| 12289063 | Modular multilevel power converter and variable speed generator-motor | Akira Bando, Takahiko Kikui, Kenta Watanabe, Tomomichi Ito, Masakazu Ishikawa +1 more | 2025-04-29 |
| 9573489 | Control device for railway power conditioner and control system for railway power conditioner | Yasuhiro Nakatsuka, Yasuhiro Imazu, Osamu Sakuchi, Masaya Ichinose, Akira Bando +6 more | 2017-02-21 |
| 9252684 | Power conversion apparatus and high-voltage DC transmission system | Shigenori Inoue, Shuji Katoh, Makoto Kadowaki, Hiroyuki Fujita, Hideki Ogata | 2016-02-02 |
| 9208037 | Duplexed operation processor control system, and duplexed operation processor control method | Toshiki Shimizu, Akira Bando, Yusaku Otsuka, Eiji Kobayashi, Akihiro Onozuka +10 more | 2015-12-08 |
| 8896261 | Doubly-fed generator and doubly-fed electric machine | Akira Bando, Masaya Ichinose, Yasuaki Nakayama | 2014-11-25 |
| 8867247 | DC/AC power converter with DC side double frequency pulsation suppression caused by AC side faults | Akira Bando, Masaya Ichinose, Hiromitsu Sakai, Yasuhiro Imazu | 2014-10-21 |
| 8386862 | Fault diagnosis apparatus and fault diagnosis method of multi-channel analog input/output circuit | Hisashi Terae, Masakazu Ishikawa, Yasuyuki Furuta, Katsumi Yoshida, Atsushi Nishioka +6 more | 2013-02-26 |
| 8255769 | Control apparatus and control method | Satoru Funaki, Masashi Suenaga, Shin Kokura, Eiji Kobayashi, Akihiro Onozuka +4 more | 2012-08-28 |
| 7888894 | Electric motor control system, series hybrid vehicle, electric motor control apparatus, and electric motor control method | Naoshi Sugawara, Tetsuhiro Fujimoto, Keizo Shimada, Akira Kikuchi, Kazuhiro Imaie | 2011-02-15 |
| 7841434 | Electric drive system for vehicle, electric control system for vehicle, electric drive method for vehicle | Keizo Shimada, Naoshi Sugawara, Kazuhiro Imaie, Shintarou Oku, Takashi Yagyu | 2010-11-30 |
| 7643317 | Power converting device and method for controlling the same | Shuji Katoh, Shoichiro Koseki, Tomomichi Ito, Motoo Futami | 2010-01-05 |
| 7315144 | AC drive apparatus, vehicle control apparatus, and power conversion method and vehicle control method | Kazuhiro Imaie, Takashi Yagyu, Keizo Shimada, Naoshi Sugawara | 2008-01-01 |
| 6839696 | Guarantee charge processing method and apparatus | Takashi Yabutani, Minoru Numano, Masashi Toyota, Kazuo Sato | 2005-01-04 |
| 6304468 | Phase synchronization system for connecting a power converter to a power distribution system | Masaya Ichinose, Motoo Futami, Shigeta Ueda, Kazuo Suzuki, Akira Maekawa | 2001-10-16 |