TN

Tadakatsu Nakajima

HI Hitachi: 47 patents #333 of 28,497Top 2%
HC Hitachi Cable: 3 patents #224 of 1,086Top 25%
HC Hitachi Building Systems Co.: 1 patents #12 of 53Top 25%
HC Hitachi Plant Engineering & Construction Co.: 1 patents #53 of 194Top 30%
HT Hitachi Plant Technologies: 1 patents #116 of 279Top 45%
Overall (All Time): #54,764 of 4,157,543Top 2%
50
Patents All Time

Issued Patents All Time

Showing 26–50 of 50 patents

Patent #TitleCo-InventorsDate
6185481 Air cooled electronic equipment apparatus Yoshihiro Kondou, Shigeo Ohashi, Susumu Iwai, Masayoshi Miyazaki, Shoohei Fuse +2 more 2001-02-06
6094343 Heat dissipation structure for electronic equipment including two heat dissipation block assemblies and a heat conductive coupler Tsuyoshi Nakagawa, Yasushi Neho, Naoyuki Sakamoto, Shigeo Ohashi, Yoshito Ohmura +4 more 2000-07-25
6094344 Heat dissipation structure for a personal computer including two heat dissipation block assemblies and two heat dissipation plates Tsuyoshi Nakagawa, Yasushi Neho, Naoyuki Sakamoto, Shigeo Ohashi, Yoshito Ohmura +4 more 2000-07-25
5959351 Liquid-cooled electronic device Shigeyuki Sasaki, Noriyuki Ashiwake, Yasuo Ohsone, Toshio Hatada, Toshiki Iino +2 more 1999-09-28
5805417 Heat dissipation structure in a portable computer including a heat dissipation block extending from a heat dissipation plate through a first circuit board to a CPU on a second circuit board Tsuyoshi Nakagawa, Yasushi Neho, Naoyuki Sakamoto, Shigeo Ohashi, Yoshito Ohmura +4 more 1998-09-08
RE35721 Cooling device of semiconductor chips Takahiro Daikoku, Noriyuki Ashiwake, Keizo Kawamura, Motohiro Sato, Fumiyuki Kobayashi +1 more 1998-02-03
5694294 Portable computer with fan moving air from a first space created between a keyboard and a first circuit board and a second space created between the first circuit board and a second circuit board Shigeo Ohashi, Yoshihiro Kondo, Mitsuru Honma, Kenji Onishi, Hiroshi Tsuzaki +1 more 1997-12-02
5504924 Cooling system of electronic computer using flexible members in contact with semiconductor devices on boards Shingeo Ohashi, Heikichi Kuwahara, Toshio Hatada, Hitoshi Matsushima, Motohiro Sato +3 more 1996-04-02
5406807 Apparatus for cooling semiconductor device and computer having the same Noriyuki Ashiwake, Shigeyuki Sasaki, Yasuo Ohsone, Toshio Hatada, Toshiki Iino +2 more 1995-04-18
5365402 Cooling apparatus of electronic device Toshio Hatada, Shigeo Ohashi, Heikichi Kuwahara, Hitoshi Matsushima, Motohiro Sato +5 more 1994-11-15
5270572 Liquid impingement cooling module for semiconductor devices Shigeo Ohashi, Heikichi Kuwahara, Noriyuki Ashiwake, Motohiro Sato, Toshio Hatsuda +6 more 1993-12-14
5021924 Semiconductor cooling device Shigekazu Kieda, Heikichi Kuwahara, Motohiro Sato 1991-06-04
4977444 Semiconductor cooling apparatus Heikichi Kuwahara, Shigeo Ohashi, Motohiro Satoh, Toshihiro Yamada, Kenichi Kasai +2 more 1990-12-11
4949164 Semiconductor cooling apparatus and cooling method thereof Shigeo Ohashi, Heikichi Kuwabara, Wataru Nakayama, Motohiro Sato, Kenichi Kasai 1990-08-14
4823863 Thermal conduction device Wataru Nakayama, Shigeo Oohashi, Heikichi Kuwabara, Takahiro Daikoku 1989-04-25
4770242 Cooling device of semiconductor chips Takahiro Daikoku, Noriyuki Ashiwake, Keizo Kawamura, Motohiro Sato, Fumiyuki Kobayashi +1 more 1988-09-13
4694378 Apparatus for cooling integrated circuit chips Wataru Nakayama, Shigeki Hirasawa 1987-09-15
4678029 Evaporating heat transfer wall Toshi Sasaki, Hiromichi Yoshida, Shigeho Fukuda, Kiyoshi Oizumi, Kimio Kakizaki +3 more 1987-07-07
4619316 Heat transfer apparatus Wataru Nakayama, Shigeki Hirasawa, Akiomi Kohno, Takaji Takenaka 1986-10-28
4606405 Heat transfer wall Wataru Nakayama, Heikichi Kuwahara, Akira Yasukawa, Takahiro Daikoku, Hiromichi Yoshida 1986-08-19
4602681 Heat transfer surface with multiple layers Takahiro Daikoku, Wataru Nakayama, Heikichi Kuwahara, Hiromichi Yoshida 1986-07-29
4585055 Liquid film evaporation type heat exchanger Wataru Nakayama, Takahiro Daikoku, Heikichi Kuwahara, Akira Yasukawa 1986-04-29
4561497 Heat transfer surface and manufacturing method for same Wataru Nakayama, Takahiro Daikoku, Heikichi Kuwahara, Akira Yasukawa, Katsuhiko Kasuya +3 more 1985-12-31
4520866 Falling film evaporation type heat exchanger Wataru Nakayama, Takahiro Daikoku 1985-06-04
4326391 Rankine-cycle-engine-driven cooling-and-heating system Eiji Sato, Nobukatsu Arai, Hideki Tanaka, Toshihiko Fukushima 1982-04-27