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Akira Nishiguchi
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Tsuchiura-shi, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Apparatus and method for managing heat source unit for air conditioner
Patent number
6,701,727
Issue date
Mar 9, 2004
Hitachi Building Systems Co., Ltd.
Tomohiro Komatsu
F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information
Patent Grant
Absorption refrigerator and the method of producing the same
Patent number
6,247,331
Issue date
Jun 19, 2001
Hitachi, Ltd.
Akira Nishiguchi
F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information
Patent Grant
Absorption refrigerating machine
Patent number
6,233,968
Issue date
May 22, 2001
Hitachi, Ltd.
Akira Nishiguchi
F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information
Patent Grant
Absorption refrigerating machine
Patent number
6,122,930
Issue date
Sep 26, 2000
Hitachi, Ltd.
Akira Nishiguchi
F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information
Patent Grant
Heat exchanger
Patent number
5,577,555
Issue date
Nov 26, 1996
Hitachi, Ltd.
Daisuke Hisajima
F28 - HEAT EXCHANGE IN GENERAL
Information
Patent Grant
Multiple type absorption air conditioning system
Patent number
5,517,830
Issue date
May 21, 1996
Hitachi, Ltd.
Tomihisa Ohuchi
F24 - HEATING RANGES VENTILATING
Information
Patent Grant
Multiple type absorption air conditioning system
Patent number
5,447,042
Issue date
Sep 5, 1995
Hitachi, Ltd.
Tomihisa Ohuchi
F24 - HEATING RANGES VENTILATING
Information
Patent Grant
High temperature regenerator of an absorption type hot and cold wat...
Patent number
5,435,154
Issue date
Jul 25, 1995
Hitachi, Ltd.
Akira Nishiguchi
F24 - HEATING RANGES VENTILATING
Information
Patent Grant
Absorption chiller heater and unit-type air conditioning system
Patent number
5,289,868
Issue date
Mar 1, 1994
Hitachi, Ltd.
Yasuo Koseki
F24 - HEATING RANGES VENTILATING
Information
Patent Grant
Multiple type absorption air conditioning system
Patent number
5,282,369
Issue date
Feb 1, 1994
Hitachi, Ltd.
Tomihisa Ohuchi
F24 - HEATING RANGES VENTILATING
Information
Patent Grant
Control method and apparatus of absorption chiller heater
Patent number
5,275,010
Issue date
Jan 4, 1994
Hitachi, Ltd.
Daisuke Hisajima
F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information
Patent Grant
Absorption air-conditioning system
Patent number
5,259,202
Issue date
Nov 9, 1993
Hitachi, Ltd.
Akira Nishiguchi
F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information
Patent Grant
Absorption heat pump apparatus with indoor and outdoor heat exchangers
Patent number
5,218,844
Issue date
Jun 15, 1993
Hitachi, Ltd.
Akira Nishiguchi
F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information
Patent Grant
Absorption air conditioner
Patent number
5,205,137
Issue date
Apr 27, 1993
Hitachi, Ltd.
Tomihisa Ohuchi
F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information
Patent Grant
Air conditioning system
Patent number
5,156,203
Issue date
Oct 20, 1992
Hitachi, Ltd.
Sunao Funakoshi
F24 - HEATING RANGES VENTILATING
Information
Patent Grant
Multi-stage absorption refrigeration system
Patent number
4,520,634
Issue date
Jun 4, 1985
Hitachi, Ltd.
Tomihisa Oouchi
F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information
Patent Grant
Vapor generator
Patent number
4,499,859
Issue date
Feb 19, 1985
Hitachi, Ltd.
Akira Nishiguchi
F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Patents Applications
last 30 patents
Information
Patent Application
Apparatus and method for managing heat source unit for air conditioner
Publication number
20030079483
Publication date
May 1, 2003
Hitachi Building Systems Co., Ltd.
Tomohiro Komatsu
F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...