SO

Sanshiro Obara

HI Hitachi: 8 patents #5 of 2,942Top 1%
HC Hitachi Automotive Engineering Co.: 3 patents #4 of 57Top 8%
HC Hitachi Car Engineering Co.: 2 patents #2 of 31Top 7%
📍 Ibaraki, JP: #1 of 586 inventorsTop 1%
Overall (1997): #1,027 of 185,788Top 1%
8
Patents 1997

Issued Patents 1997

Showing 1–8 of 8 patents

Patent #TitleCo-InventorsDate
5677604 Control system and control method for electric automobile Ryoso Masaki, Nobuyoshi Mutoh, Satoru Kaneko 1997-10-14
5661380 Method and apparatus for operating an electric vehicle drive system during periods of sensor malfunction Shigeyuki Yoshihara, Hiroyuki Yamada, Nobunori Matsudaira 1997-08-26
5659235 Drive controller and control method for electric vehicle Hiroyuki Yamada, Nobunori Matsudaira 1997-08-19
5650700 Electric vehicle torque controller Nobuyoshi Mutoh, Taizou Miyazaki, Ryoso Masaki, Tsutomu Ohmae 1997-07-22
5631819 Power converter Ryoso Masaki, Takashi Ikimi, Hironori Ohashi, Yuusuke Takamoto, Seiji Ishida 1997-05-20
5631796 Electric vehicle control system Shigeyuki Yoshihara, Nobunori Matsudaira, Shotaro Naito 1997-05-20
5610483 Control equipment for electric vehicle and control method thereof Hiroyuki Yamada, Nobunori Matsudaira, Ryoso Masaki 1997-03-11
5600215 Controller for electric vehicle Hiroyuki Yamada, Shotaro Naito 1997-02-04