KU

Kenji Umayahara

TO Toyota: 63 patents #99 of 26,838Top 1%
Mazda Motor: 1 patents #2,563 of 4,755Top 55%
Overall (All Time): #34,747 of 4,157,543Top 1%
64
Patents All Time

Issued Patents All Time

Showing 26–50 of 64 patents

Patent #TitleCo-InventorsDate
9884567 Vehicle including fuel cell system Kohei Oda, Yuji Kakeno, Mitsuhiro Nada 2018-02-06
9873351 Fuel cell system, fuel cell vehicle, and method of controlling fuel cell system Yuji Kakeno, Mitsuhiro Nada, Yusuke Nishida 2018-01-23
9853313 Fuel cell system, control method for the fuel cell system, and electric vehicle equipped with the fuel cell system Michio Yoshida, Atsushi Imai 2017-12-26
9821662 Braking force control system, vehicle and method of controlling braking force Mitsuhiro Nada, Takuya NAKAGAMI 2017-11-21
9796294 Vehicle driven by electric motor and control method for vehicle Yusuke Nishida, Mitsuhiro Nada 2017-10-24
9776526 Fuel cell system, fuel cell vehicle, and method of controlling fuel cell system Yuji Kakeno, Mitsuhiro Nada, Yusuke Nishida 2017-10-03
9758169 Vehicle employing ordinary and deceleration enhanced drive modes in an accelerator-off state Mitsuhiro Nada, Takuya NAKAGAMI 2017-09-12
9490494 Fuel cell system Yuji Kakeno, Hideaki Mizuno, Yoshiaki Naganuma, Masashi Toida 2016-11-08
9034495 Fuel cell system Michio Yoshida, Tadaichi Matsumoto, Motohiko Taniyama 2015-05-19
8999591 Fuel cell system for preventing excessive power generation Takeshi Maenaka 2015-04-07
8996182 Fuel cell system and power control method therefor Hiroaki Mori 2015-03-31
8980487 Fuel cell system and activating completion degree displaying method of the same Atsushi Imai 2015-03-17
8853989 Fuel cell system and motor driving method 2014-10-07
8802310 Fuel cell system Tadaichi Matsumoto, Fusaki Igarashi, Michio Yoshida, Kota Manabe 2014-08-12
8795913 Fuel cell system and control method thereof Hiroaki Mori 2014-08-05
8728677 Fuel cell system and fuel cell degradation judgment method Michio Yoshida 2014-05-20
8722265 Fuel cell system Michio Yoshida 2014-05-13
8722266 Fuel cell system Michio Yoshida, Takeshi Maenaka 2014-05-13
8658324 Fuel cell system 2014-02-25
8642224 Fuel cell system with a learning capability to readjust the driving characteristic of a gas supply device and vehicle 2014-02-04
8626373 Fuel cell system and control method of same 2014-01-07
8609292 Fuel cell system 2013-12-17
8571732 Vehicle skid control device Michio Yoshida, Tomoyuki Nishida 2013-10-29
8557464 Fuel supply system having regulating device for supplying fuel gas to an anode 2013-10-15
8445153 Fuel cell high-potential prevention control system Michio Yoshida 2013-05-21