TT

Toyokazu Tanaka

HI Hitachi: 2 patents #622 of 3,771Top 20%
Overall (2004): #36,742 of 270,089Top 15%
2
Patents 2004

Issued Patents 2004

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6759616 Gas insulated switchgear Toshiaki Rokunohe, Fumihiro Endo, Kenji Tsuchiya 2004-07-06
6680453 Gas insulated switchgear Toshiaki Rokunohe, Fumihiro Endo, Kenji Tsuchiya 2004-01-20