HK

Heikichi Kuwabara

HI Hitachi: 4 patents #8,942 of 28,497Top 35%
📍 Ibaraki, JP: #2,214 of 6,779 inventorsTop 35%
Overall (All Time): #1,273,130 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
6414867 Power inverter Osamu Suzuki, Akio Yasukawa, Mitsuyuki Hombu, Hirohisa Yamamura, Sanshirou Obara +1 more 2002-07-02
5180001 Heat transfer member Ryoji Okada, Motohiro Sato, Toshihiro Yamada 1993-01-19
4949164 Semiconductor cooling apparatus and cooling method thereof Shigeo Ohashi, Tadakatsu Nakajima, Wataru Nakayama, Motohiro Sato, Kenichi Kasai 1990-08-14
4823863 Thermal conduction device Tadakatsu Nakajima, Wataru Nakayama, Shigeo Oohashi, Takahiro Daikoku 1989-04-25