Issued Patents All Time
Showing 1–25 of 57 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11626610 | Fuel cell stack | Hideo Nagaosa, Yoshihiro Shinozaki | 2023-04-11 |
| 9889765 | Fuel cell system | Yutaka Tano, Tomohiko Kaneko | 2018-02-13 |
| 9727066 | Fuel cell system | Hikaru Arai, Tomohiko Kaneko, Hiroyuki Imanishi | 2017-08-08 |
| 9577271 | Fuel cell system and its control method | Hiroyuki Imanishi, Tomoya Ogawa | 2017-02-21 |
| 9473026 | Step-up converter for boosting voltage from a power source system | — | 2016-10-18 |
| 9450261 | Fuel cell system with regulation of DC/DC converter passing power | Takahiko Hasegawa | 2016-09-20 |
| 9240602 | Fuel cell system | Hiroyuki Imanishi, Tomoya Ogawa | 2016-01-19 |
| 9225028 | Fuel cell system | Hiroyuki Imanishi, Tomoya Ogawa | 2015-12-29 |
| 9203314 | Converter controlling apparatus and multiphase converter | Hiroyuki Imanishi, Nobuyuki Kitamura, Takahiko Hasegawa | 2015-12-01 |
| 9184456 | Fuel cell system and method for limiting current thereof | Hiroyuki Imanishi, Tomoya Ogawa | 2015-11-10 |
| 9029030 | Fuel cell system including soft switching boost converter | Hiroyuki Imanishi, Nobuyuki Kitamura, Takahiko Hasegawa, Atsuo Kawamura, Yukinori Tsuruta | 2015-05-12 |
| 9024598 | Converter control device | Takahiko Hasegawa, Nobuyuki Kitamura, Takahiro UMEHARA | 2015-05-05 |
| 8970186 | DC-DC converter with an auxiliary circuit for performing soft-switching | Takahiko Hasegawa, Tomohiko Kaneko, Khalid Hassan Hussein, Shinji Hatae | 2015-03-03 |
| 8906567 | Fuel cell system | Takahiko Hasegawa, Nobuyuki Kitamura | 2014-12-09 |
| 8900768 | Fuel cell system, electrode catalyst degradation judgment method, and moving body | Hironori Noto | 2014-12-02 |
| 8896282 | Converter controller | Takahiko Hasegawa, Nobuyuki Kitamura | 2014-11-25 |
| 8889309 | Fuel cell system and AC impedance measurement method | Masahiro Shige | 2014-11-18 |
| 8859157 | Fuel cell system and its control method | Hiroyuki Imanishi, Tomoya Ogawa | 2014-10-14 |
| 8846258 | Fuel cell system | Hiroyuki Imanishi, Tomoya Ogawa | 2014-09-30 |
| 8815460 | Fuel cell system | — | 2014-08-26 |
| 8802310 | Fuel cell system | Kenji Umayahara, Tadaichi Matsumoto, Fusaki Igarashi, Michio Yoshida | 2014-08-12 |
| 8795915 | Fuel cell system | Hiroyuki Imanishi, Yoshiaki Naganuma, Tomoya Ogawa | 2014-08-05 |
| 8790838 | Voltage conversion control of a fuel cell system | Takahiko Hasegawa | 2014-07-29 |
| 8728678 | Frequency control of DC/DC converter in a fuel cell system | Takahiko Hasegawa | 2014-05-20 |
| 8663862 | Fuel cell system | Hiroyuki Imanishi | 2014-03-04 |