RM

Ryoso Masaki

HI Hitachi: 66 patents #126 of 28,497Top 1%
HC Hitachi Industrial Equipment Systems Co.: 17 patents #12 of 550Top 3%
HC Hitachi Powdered Metals Co.: 7 patents #19 of 246Top 8%
JC Japan Servo Co.: 6 patents #18 of 161Top 15%
HA Hitachi Appliances: 4 patents #13 of 109Top 15%
HC Hitachi Cable: 3 patents #224 of 1,086Top 25%
HC Hitachi Automotive Engineering Co.: 3 patents #60 of 314Top 20%
HC Hitachi Car Engineering Co.: 2 patents #204 of 465Top 45%
NS Nidec Servo: 1 patents #45 of 83Top 55%
Overall (All Time): #20,691 of 4,157,543Top 1%
84
Patents All Time

Issued Patents All Time

Showing 26–50 of 84 patents

Patent #TitleCo-InventorsDate
6808468 Composite power transmission mechanism and vehicle Taizo Miyazaki, Tomoyuki Haniu, Masahiko Amano, Yasuo Morooka 2004-10-26
6806588 Power controller for a vehicle Masahiko Amano, Yasuo Morooka 2004-10-19
6788024 Position-sensorless motor control method and apparatus Satoru Kaneko, Takefumi Sawada 2004-09-07
6771039 Motor control apparatus and method Yoshimi Sakurai, Yoshitaka Iwaji 2004-08-03
6700343 Motor controller Satoru Kaneko, Yoshimi Sakurai 2004-03-02
6696812 Control apparatus for electric motor Satoru Kaneko, Yasuo Morooka, Mitsuyuki Hombu, Hiroshi Katayama 2004-02-24
6692405 Power transmission apparatus for an automobile Toshimichi Minowa, Toshiyuki Innami, Yuzo Kadomukai 2004-02-17
6653745 Power source apparatus for a car Masahiko Amano, Mutsuhiro Mori, Hideki Miyazaki, Kazuo Tahara, Keiichi Mashino 2003-11-25
6557656 Driving system and vehicle Tomoyuki Haniu, Masahiko Amano, Taizo Miyazaki, Yasuo Morooka 2003-05-06
6555988 Motor control device Satoru Kaneko, Sanshiro Obara, Mitsuyuki Hombu, Yoshimi Sakurai 2003-04-29
6507127 Hybrid vehicle Masahiko Amano, Taizo Miyazaki, Tomoyuki Hanyu 2003-01-14
6501243 Synchronous motor-control apparatus and vehicle using the control apparatus Satoru Kaneko, Yasuo Morooka 2002-12-31
6470983 Hybrid vehicle Masahiko Amano, Taizo Miyazaki, Tomoyuki Hanyu 2002-10-29
6456030 Synchronous motor control device, electric motor vehicle control device and method of controlling synchronous motor Satoru Kaneko 2002-09-24
6440036 Power transmission apparatus for an automobile Toshimichi Minowa, Toshiyuki Innami, Yuzo Kadomukai 2002-08-27
6426608 Automobile and power supply system therefor Masahiko Amano, Yasuo Morooka 2002-07-30
6404152 Motor control device Takashi Kobayashi, Fumio Tajima, Shoichi Kawamata, Yutaka Matsunobu, Suetaro Shibukawa +1 more 2002-06-11
6360625 Power transmission apparatus and vehicle using power transmission apparatus Taizo Miyazaki, Toshimichi Minowa, Tomoyuki Hanyu, Yasuo Morooka 2002-03-26
6328670 Power transmission apparatus for an automobile Toshimichi Minowa, Toshiyuki Innami, Yuzo Kadomukai 2001-12-11
6320349 Method of estimating field pole position of synchronous motor, motor controller, and electric vehicle Satoru Kaneko, Yuusuke Takamoto, Taizou Miyazaki, Sanshiro Obara 2001-11-20
6318486 Hybrid vehicle 2001-11-20
6281656 Synchronous motor control device electric motor vehicle control device and method of controlling synchronous motor Satoru Kaneko 2001-08-28
6258006 Transmission, vehicle, hybrid vehicle, and control unit therefor Tomoyuki Hanyu, Hiroshi Sakamoto, Toshimichi Minowa, Taizo Miyazaki 2001-07-10
6255798 Control apparatus for electric vehicle Sanshiro Obara, Yuusuke Takamoto, Eiichi Ohtsu, Hiroyuki Yamada 2001-07-03
6248036 Transmission and vehicle and bicycle using the same 2001-06-19