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Hiroaki Doi

HI Hitachi: 4 patents #8,942 of 28,497Top 35%
HC Hitachi Chemical Company: 1 patents #1,071 of 1,946Top 60%
Overall (All Time): #1,255,273 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
7230320 Electronic circuit device with reduced breaking and cracking Noriyoshi Urushiwara, Akira Matsushita 2007-06-12
6889516 Cooling system for motor and cooling control method Kaname Sasaki, Haruki Hamada, Masaaki Hayashi, Ryuichi Saito 2005-05-10
6265784 Resin sealed semiconductor device having improved arrangement for reducing thermal stress within the device Kenya Kawano, Akio Yasukawa, Hideo Miura 2001-07-24
4528223 Composite fibrous product Tetsuo Kumazawa, Yasuo Miyadera, Atsushi Fujioka, Tadashi Nagai 1985-07-09