YO

Yoshifumi Oura

HI Hitachi: 1 patents #17,742 of 28,497Top 65%
TI Tokyo Electric Power Company Holdings, Incorporated: 1 patents #245 of 711Top 35%
Overall (All Time): #3,959,621 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4772978 Transformer protection system Kunio Matsuzawa, Kazuyoshi Yoshida, Keizo Inagaki, Hiroyuki Kudo, Yoshihiro Sano 1988-09-20