KS

Keijirou Sakai

HI Hitachi: 3 patents #10,712 of 28,497Top 40%
Overall (All Time): #1,598,245 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
6975048 Drive apparatus and XY table utilizing the same Houng Joong Kim, Kohji Maki, Hisao Tadokoro, Hideki Shimane, Hitoshi Shibata 2005-12-13
6876108 Linear motor, its controlling method, and XY table Kohji Maki, Houng Joong Kim, Yasuo Morooka, Hitoshi Shibata, Hideki Shimane +2 more 2005-04-05
6556464 PWM converter system Toshiaki Okuyama, Kinya Nakatsu, Seiji Ishida, Hiroshi Fujii, Junji Kato +1 more 2003-04-29