SI

Shuzuo Iwaasa

HI Hitachi: 1 patents #17,742 of 28,497Top 65%
Overall (All Time): #3,858,954 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5146170 Method and apparatus for locating an abnormality in a gas-insulated electric device Toshio Ishikawa, Tomoaki Utsumi, Fumihiro Endo 1992-09-08