SY

Shigeyuki Yoshihara

HI Hitachi: 3 patents #156 of 2,942Top 6%
HC Hitachi Car Engineering Co.: 2 patents #2 of 31Top 7%
HC Hitachi Automotive Engineering Co.: 1 patents #12 of 57Top 25%
📍 Hitachinaka, JP: #12 of 230 inventorsTop 6%
Overall (1997): #11,051 of 185,788Top 6%
3
Patents 1997

Issued Patents 1997

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5677611 Control apparatus for an electric vehicle Hiroshi Katada 1997-10-14
5661380 Method and apparatus for operating an electric vehicle drive system during periods of sensor malfunction Sanshiro Obara, Hiroyuki Yamada, Nobunori Matsudaira 1997-08-26
5631796 Electric vehicle control system Sanshiro Obara, Nobunori Matsudaira, Shotaro Naito 1997-05-20