Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6336343 | Two-stage absorption refrigerating apparatus | Akira Nishioka, Tatsuo Fujii, Satoshi Miyake, Atsushi Shitara, Toshikuni Ohashi +1 more | 2002-01-08 |
| 6279343 | High temperature regenerator for absorption water cooling and heating machine | Yasushi Funaba, Norihiro Itou, Satoshi Miyake | 2001-08-28 |
| 6247331 | Absorption refrigerator and the method of producing the same | Akira Nishiguchi, Ryoko Sakiyama, Tadakatsu Nakajima | 2001-06-19 |
| 6233968 | Absorption refrigerating machine | Akira Nishiguchi, Ryoko Sakiyama, Michihiko Aizawa | 2001-05-22 |
| 6122930 | Absorption refrigerating machine | Akira Nishiguchi, Ryoko Sakiyama, Michihiko Aizawa | 2000-09-26 |
| 5577555 | Heat exchanger | Daisuke Hisajima, Akira Nishiguchi, Saburo Tsukada | 1996-11-26 |
| 5517830 | Multiple type absorption air conditioning system | Akira Nishiguchi, Seiichiro Sakaguchi, Daisuke Hisajima, Michihiko Aizawa, Takashi Nakao +2 more | 1996-05-21 |
| 5447042 | Multiple type absorption air conditioning system | Akira Nishiguchi, 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 | Akira Nishiguchi, 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, Akira Nishiguchi +2 more | 1994-03-01 |
| 5282369 | Multiple type absorption air conditioning system | Akira Nishiguchi, Seiichiro Sakaguchi, Daisuke Hisajima, Michihiko Aizawa, Takashi Nakao +2 more | 1994-02-01 |
| 5275010 | Control method and apparatus of absorption chiller heater | Daisuke Hisajima, Akira Nishiguchi, Yasuo Koseki, Michihiko Aizawa, Hiroaki Yoda +1 more | 1994-01-04 |
| 5259202 | Absorption air-conditioning system | Akira Nishiguchi, Daisuke Hisajima, Michihiko Aizawa | 1993-11-09 |
| 5218844 | Absorption heat pump apparatus with indoor and outdoor heat exchangers | Akira Nishiguchi, Seiichiro Sakaguchi, Daisuke Hisajima, Michihiko Aizawa | 1993-06-15 |
| 5205137 | Absorption air conditioner | Akira Nishiguchi, Daisuke Hisajima, Seiichiro Sakaguchi, Yoshifumi Kunugi, Michihiko Aizawa +2 more | 1993-04-27 |
| 5186241 | Chemical heat pump | Yoshifumi Kunugi, Michio Yanadori, Toshihiko Fukushima | 1993-02-16 |
| 5048308 | Absorption refrigerator | Daisuke Hisajima, Seiichiro Sakaguchi, Toshifumi Kunugi, Michihiko Aizawa | 1991-09-17 |
| 4941329 | Double effect air-cooled absorption refrigerating machine | Kouji Imura, Kyoji Kohno, Tamio Shimizu, Michihiko Aizawa | 1990-07-17 |
| 4328679 | Capability control apparatus for cooling system having direct expansion type evaporator | Sampei Usui | 1982-05-11 |