TU

Tomoaki Utsumi

HI Hitachi: 3 patents #256 of 3,189Top 9%
Overall (2005): #15,329 of 245,428Top 7%
3
Patents 2005

Issued Patents 2005

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
6884940 Vacuum switchgear Kazuhiro Satou, Takashi Shirone, Kenji Tsuchiya, Masato Kobayashi 2005-04-26
6853528 Gas insulating apparatus and method for locating fault point thereof Tatsuro Kato, Fumihiro Endo, Kazuo Kobayashi, Kazuhiro Saito 2005-02-08
6850399 Gas insulated device and failure rating method Tatsuro Kato, Fumihiro Endo, Kazuo Kobayashi, Kazuhiro Saito 2005-02-01