Issued Patents All Time
Showing 1–24 of 24 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11214151 | Voltage control system with addition term and fuel cell system | Kenji Umayahara, Takahiro UMEHARA | 2022-01-04 |
| 11142093 | Fuel cell vehicle and method for controlling the same | Shinya Owatari, Osamu Yumita, Takahiro UMEHARA | 2021-10-12 |
| 11050072 | Fuel cell system and operation control method of the same | Tomohiko Kaneko, Yoshiaki Naganuma, Yohei Okamoto | 2021-06-29 |
| 10818945 | Voltage control system, fuel cell system, and control method for voltage control system | Kenji Umayahara, Takahiro UMEHARA, Tomoya Ogawa | 2020-10-27 |
| 10693163 | Fuel cell system and vehicle | Akihiro Kamiya, Takahiro UMEHARA | 2020-06-23 |
| 10615437 | Fuel cell system including converter boosting output voltage based on duty ratio | Shinji Aso, Yuji Kakeno | 2020-04-07 |
| 10511227 | Fuel cell system and method for controlling the fuel cell system | Takahiro UMEHARA | 2019-12-17 |
| 10359754 | Fuel cell system and method of controlling fuel cell | Mitsuhiro Nada, Tomohiko Kaneko, Yohei Okamoto | 2019-07-23 |
| 10224558 | Fuel cell system and operation control method of the same | Tomohiko Kaneko, Yoshiaki Naganuma, Yohei Okamoto | 2019-03-05 |
| 10158136 | Fuel cell system and fuel cell control method | Yohei Okamoto, Mitsuhiro Nada, Tomohiko Kaneko | 2018-12-18 |
| 10153504 | Fuel cell system | Yuji Kakeno, Shinji Aso | 2018-12-11 |
| 10135082 | Fuel cell system and control method of fuel cell system | Tomohiko Kaneko, Yoshiaki Naganuma, Yohei Okamoto | 2018-11-20 |
| 10056626 | Fuel cell system, fuel cell vehicle, and control method for fuel cell system | Yuji Kakeno, Mitsuhiro Nada, Kenji Umayahara | 2018-08-21 |
| 9923217 | Method of controlling fuel cell system | Mitsuhiro Nada | 2018-03-20 |
| 9889765 | Fuel cell system | Kota Manabe, Tomohiko Kaneko | 2018-02-13 |
| 9700702 | Guide wire | Yousuke Nabeshima | 2017-07-11 |
| 9692068 | Fuel cell system | Yohei Okamoto, Mitsuhiro Nada, Tomohiko Kaneko | 2017-06-27 |
| 9623212 | Guide wire | Yousuke Nabeshima | 2017-04-18 |
| 9283356 | Guide wire | Yousuke Nabeshima | 2016-03-15 |
| 9269974 | Fuel cell system | Masaaki Matsusue, Naohisa Tsuchiya, Tadaomi Kinomoto | 2016-02-23 |
| 8827928 | Guide wire | Yousuke Nabeshima, Noriyuki Tamai, Ryuuichi Watanabe | 2014-09-09 |
| 8517959 | Guide wire for medical treatment | Tomokane Kurosawa | 2013-08-27 |
| 8434507 | Safety valve device, valve apparatus, high-pressure gas tank, and vehicle | Yasuyuki Iida, Yasuhiro Yamamoto, Kunihiko Daido | 2013-05-07 |
| 7942832 | Medical guide wire | Satoru Kanuka, Chikei Shinohara, Akihiko Umeno, Noriyuki Tamai | 2011-05-17 |