Issued Patents All Time
Showing 26–50 of 57 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8653802 | Chopper circuit, DC/DC converter, and fuel cell system | Takahiko Hasegawa, Toshihiko Minamii | 2014-02-18 |
| 8610414 | Vehicle-mounted multi-phase converter and design method thereof | Hiroo Fuma, Yuji Nishibe, Nobuyuki Kitamura | 2013-12-17 |
| 8609289 | Fuel cell system | Takahiko Hasegawa | 2013-12-17 |
| 8603689 | Fuel cell system which measures impedance | Nobuyuki Orihashi, Shigetaka Hamada, Masahiro Shige | 2013-12-10 |
| 8597848 | Fuel cell system, estimation device of amount of anode gas to be generated and estimation method of amount of anode gas to be generated | Hiroyuki Imanishi, Tomoya Ogawa, Go Tejima, Yoshiaki Naganuma, Hironori Noto | 2013-12-03 |
| 8593845 | Converter controller | — | 2013-11-26 |
| 8574777 | Fuel cell system | Kimihide Horio | 2013-11-05 |
| 8530105 | Fuel cell system | Ayako Kawase | 2013-09-10 |
| 8492040 | Fuel cell system and method of controlling the same | Hiroyuki Imanishi, Yuichi Sakajo | 2013-07-23 |
| 8460835 | Fuel cell system | Hiroyuki Imanishi, Tomoya Ogawa | 2013-06-11 |
| 8451006 | Fuel cell system | Takahiko Hasegawa | 2013-05-28 |
| 8384236 | Vehicle mounted converter | Hiroo Fuma, Takaji Umeno | 2013-02-26 |
| 8361667 | Fuel cell system and its control method | Hiroyuki Imanishi, Tomoya Ogawa, Yoshiaki Naganuma | 2013-01-29 |
| 8343675 | Fuel cell system | Kimihide Horio | 2013-01-01 |
| 8288050 | Fuel cell system | Masahiro Shige | 2012-10-16 |
| 8288043 | Fuel cell system and mobile object | Kimihide Horio | 2012-10-16 |
| 8268495 | Controller in a fuel cell system that controls the measurement of AC impedance and drives the DC/DC converter | Takeshi Maenaka, Takahiko Hasegawa | 2012-09-18 |
| 8263275 | Fuel cell system having a control unit for measuring impedance | Masahiro Shige | 2012-09-11 |
| 8263278 | Fuel cell system and its operation method | Hiroyuki Imanishi, Tomoya Ogawa | 2012-09-11 |
| 8241802 | Fuel cell system with constantly accurate impedance measurement | Masahiro Shige | 2012-08-14 |
| 8227123 | Fuel cell system and current control method with PI compensation based on minimum cell voltage | Hiroyuki Imanishi, Tomoya Ogawa | 2012-07-24 |
| 8182953 | Fuel cell system | — | 2012-05-22 |
| 8159850 | Converter control device | Takahiko Hasegawa, Takeshi Maenaka | 2012-04-17 |
| 8111056 | Converter control device for a bidirectional power supply system having plural parallel phases | Takahiko Hasegawa, Hiroyuki Imanishi | 2012-02-07 |
| 8110311 | Fuel cell system | Kimihide Horio, Hideaki Mizuno, Hironori Noto, Takashi Yamamoto, Tomoya Ogawa | 2012-02-07 |