HK

Heikichi Kuwahara

HI Hitachi: 20 patents #1,757 of 28,497Top 7%
HC Hitachi Cable: 9 patents #52 of 1,086Top 5%
📍 Kashiwa, JP: #54 of 653 inventorsTop 9%
Overall (All Time): #212,003 of 4,157,543Top 6%
21
Patents All Time

Issued Patents All Time

Showing 1–21 of 21 patents

Patent #TitleCo-InventorsDate
6021040 Power storage device and power converter using same Osamu Suzuki, Kaname Sasaki, Hirohisa Yamamura 2000-02-01
5925929 Cooling apparatus for electronic elements Kazumasa Fujioka, Toshio Takasaki, Syuuji Saitoo, Eiichi Toyota 1999-07-20
5925947 Totally-enclosed type motor Kenzo Kajiwara, Kouki Nagai, Kenji Takahashi 1999-07-20
5793106 Semiconductor device Akio Yasukawa, Hirohisa Yamamura, Shotaro Naito, Osamu Suzuki, Masanori Muso +1 more 1998-08-11
5793611 Cooling device with thermally separated electronic parts on a monolithic substrate Norio Nakazato, Shigeki Hirasawa, Shoji Masukawa 1998-08-11
5651414 Heat-pipe type cooling apparatus Osamu Suzuki, Kazumasa Fujioka, Syuuji Saitoo, Nobuo Suzuki, Koichi Isaka 1997-07-29
5504924 Cooling system of electronic computer using flexible members in contact with semiconductor devices on boards Shingeo Ohashi, Tadakatsu Nakajima, Toshio Hatada, Hitoshi Matsushima, Motohiro Sato +3 more 1996-04-02
5365402 Cooling apparatus of electronic device Toshio Hatada, Shigeo Ohashi, Tadakatsu Nakajima, Hitoshi Matsushima, Motohiro Sato +5 more 1994-11-15
5270572 Liquid impingement cooling module for semiconductor devices Tadakatsu Nakajima, Shigeo Ohashi, Noriyuki Ashiwake, Motohiro Sato, Toshio Hatsuda +6 more 1993-12-14
5021924 Semiconductor cooling device Shigekazu Kieda, Tadakatsu Nakajima, Motohiro Sato 1991-06-04
4977444 Semiconductor cooling apparatus Tadakatsu Nakajima, Shigeo Ohashi, Motohiro Satoh, Toshihiro Yamada, Kenichi Kasai +2 more 1990-12-11
4794775 Method of producing a heat transfer tube for single-phase flow Kenji Takahashi, Takehiko Yanagida, Wataru Nakayama, Shigeo Sugimoto, Kiyoshi Oizumi 1989-01-03
4715436 Construction of a heat transfer wall of a heat transfer pipe Kenji Takahashi, Takehiko Yanagida, Wataru Nakayama, Kiyoshi Oizumi, Shigeo Sugimoto 1987-12-29
4690211 Heat transfer tube for single phase flow Kenji Takahashi, Takehiko Yanagida, Wataru Nakayama, Shigeo Sugimoto, Kiyoshi Oizumi 1987-09-01
4653163 Method for producing a heat transfer wall for vaporizing liquids Kenji Takahashi, Takehiko Yanagida, Wataru Nakayama, Shigeo Sugimoto, Yoshihiko Nakayama +4 more 1987-03-31
4606405 Heat transfer wall Wataru Nakayama, Tadakatsu Nakajima, Akira Yasukawa, Takahiro Daikoku, Hiromichi Yoshida 1986-08-19
4602681 Heat transfer surface with multiple layers Takahiro Daikoku, Wataru Nakayama, Tadakatsu Nakajima, Hiromichi Yoshida 1986-07-29
4585055 Liquid film evaporation type heat exchanger Wataru Nakayama, Takahiro Daikoku, Tadakatsu Nakajima, Akira Yasukawa 1986-04-29
4561497 Heat transfer surface and manufacturing method for same Tadakatsu Nakajima, Wataru Nakayama, Takahiro Daikoku, Akira Yasukawa, Katsuhiko Kasuya +3 more 1985-12-31
4195688 Heat-transfer wall for condensation and method of manufacturing the same Kunio Fujie, Wataru Nakayama, Takahiro Daikoku, Kimio Kakizaki 1980-04-01
4194384 Method of manufacturing heat-transfer wall for vapor condensation Kunio Fujie, Wataru Nakayama, Takahiro Daikoku, Kimio Kakizaki 1980-03-25