AN

Akira Nishiguchi

HI Hitachi: 16 patents #2,438 of 28,497Top 9%
HC Hitachi Building Systems Co.: 1 patents #12 of 53Top 25%
HC Hitachi Cable: 1 patents #530 of 1,086Top 50%
Overall (All Time): #279,755 of 4,157,543Top 7%
17
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
6701727 Apparatus and method for managing heat source unit for air conditioner Tomohiro Komatsu, Tadakatsu Nakajima, Tatsuo Fujii, Masaru Noujyo, Kyoichi Sekiguchi +4 more 2004-03-09
6247331 Absorption refrigerator and the method of producing the same Ryoko Sakiyama, Tadakatsu Nakajima, Tomihisa Ohuchi 2001-06-19
6233968 Absorption refrigerating machine Ryoko Sakiyama, Tomihisa Ohuchi, Michihiko Aizawa 2001-05-22
6122930 Absorption refrigerating machine Ryoko Sakiyama, Tomihisa Ohuchi, Michihiko Aizawa 2000-09-26
5577555 Heat exchanger Daisuke Hisajima, Tomihisa Ohuchi, Saburo Tsukada 1996-11-26
5517830 Multiple type absorption air conditioning system Tomihisa Ohuchi, Seiichiro Sakaguchi, Daisuke Hisajima, Michihiko Aizawa, Takashi Nakao +2 more 1996-05-21
5447042 Multiple type absorption air conditioning system Tomihisa Ohuchi, Seiichiro Sakaguchi, Daisuke Hisajima, Michihiko Aizawa, Takashi Nakao +2 more 1995-09-05
5435154 High temperature regenerator of an absorption type hot and cold water generator and absorption type hot and cold water generator Tomihisa Ohuchi, Shigeo Sugimoto, Michihiko Aizawa, Takao Naruse, Yasuo Uraki 1995-07-25
5289868 Absorption chiller heater and unit-type air conditioning system Yasuo Koseki, Ryuichi Kaji, Hiroaki Yoda, Takashi Nakao, Tomihisa Ohuchi +2 more 1994-03-01
5282369 Multiple type absorption air conditioning system Tomihisa Ohuchi, Seiichiro Sakaguchi, Daisuke Hisajima, Michihiko Aizawa, Takashi Nakao +2 more 1994-02-01
5275010 Control method and apparatus of absorption chiller heater Daisuke Hisajima, Tomihisa Ohuchi, Yasuo Koseki, Michihiko Aizawa, Hiroaki Yoda +1 more 1994-01-04
5259202 Absorption air-conditioning system Tomihisa Ohuchi, Daisuke Hisajima, Michihiko Aizawa 1993-11-09
5218844 Absorption heat pump apparatus with indoor and outdoor heat exchangers Tomihisa Ohuchi, Seiichiro Sakaguchi, Daisuke Hisajima, Michihiko Aizawa 1993-06-15
5205137 Absorption air conditioner Tomihisa Ohuchi, Daisuke Hisajima, Seiichiro Sakaguchi, Yoshifumi Kunugi, Michihiko Aizawa +2 more 1993-04-27
5156203 Air conditioning system Sunao Funakoshi, Kazuya Matsuo, Hiroo Nakamura, Hiroaki Matsushima, Daisuke Hisajima +3 more 1992-10-20
4520634 Multi-stage absorption refrigeration system Tomihisa Oouchi, Sampei Usui, Tamio Fukuda 1985-06-04
4499859 Vapor generator Sanpei Usui, Tomihisa Oouchi, Kazumi Iwai 1985-02-19