TS

Takefumi Sawada

HI Hitachi: 5 patents #7,555 of 28,497Top 30%
Overall (All Time): #1,025,445 of 4,157,543Top 25%
5
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
7759888 AC motor controller Hirokazu Matsui, Shigeyuki Yoshihara 2010-07-20
7541769 Electric power converter and motor driving system Masamichi Nawa 2009-06-02
6914408 Motor control apparatus and electric vehicle using same Satoru Kaneko, Ryoso Masaki, Mitsuyuki Hombu, Hiroshi Katayama 2005-07-05
6788024 Position-sensorless motor control method and apparatus Satoru Kaneko, Ryoso Masaki 2004-09-07
6329781 Control apparatus of synchronous motors Hirokazu Matsui, Hiroshi Katada 2001-12-11