KI

Katsumi Ishikawa

HI Hitachi: 3 patents #231 of 2,733Top 9%
Overall (2011): #44,267 of 364,097Top 15%
3
Patents 2011

Issued Patents 2011

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
7994826 Drive circuit for power semiconductor switching device Hideki Miyazaki, Masahiro Nagasu, Yasuhiko Kono 2011-08-09
7954334 Inverter system and vehicle Masataka Sasaki, Hideki Miyazaki, Keiji Maekawa 2011-06-07
7880174 Circuit arrangement having a free-wheel diode Haruka Shimizu, Masahiro Nagasu, Dai Tsugawa 2011-02-01