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Ushiku, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Absorption refrigerator and production method thereof
Patent number
7,165,418
Issue date
Jan 23, 2007
Hitachi, Ltd.
Katsumi Mabuchi
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Absorption refrigerator and production method thereof
Patent number
6,813,901
Issue date
Nov 9, 2004
Hitachi, Ltd.
Katsumi Mabuchi
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Absorption refrigerator and production method thereof
Patent number
6,279,342
Issue date
Aug 28, 2001
Hitachi Ltd.
Katsumi Mabuchi
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
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
Absorption refrigerator and production method thereof
Patent number
5,964,103
Issue date
Oct 12, 1999
Hitachi, Ltd.
Katsumi Mabuchi
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Absorption refrigerator and production method thereof
Patent number
5,806,337
Issue date
Sep 15, 1998
Hitachi, Ltd.
Katsumi Mabuchi
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
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
Absorption refrigerator
Patent number
5,463,880
Issue date
Nov 7, 1995
Hitachi, Ltd.
Yoshitaka Nishino
F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
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
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
Heat exchanger for condensing vapor into liquid phase, power genera...
Patent number
5,205,352
Issue date
Apr 27, 1993
Hitachi, Ltd.
Fumio Takahashi
F28 - HEAT EXCHANGE IN GENERAL
Information
Patent Grant
Absorption refrigerator
Patent number
5,048,308
Issue date
Sep 17, 1991
Hitachi, Ltd.
Daisuke Hisajima
F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information
Patent Grant
Double effect air-cooled absorption refrigerating machine
Patent number
4,941,329
Issue date
Jul 17, 1990
Hitachi, Ltd.
Kouji Imura
F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information
Patent Grant
Hermetically closed circulation type, vapor absorption refrigerator
Patent number
4,912,934
Issue date
Apr 3, 1990
Hitachi, Ltd.
Masahiko Itoh
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Absorption type refrigerator and absorbing solution therefor
Patent number
4,857,222
Issue date
Aug 15, 1989
Hitachi, Ltd.
Masahiko Itoh
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Multi-effect absorption refrigerating machine
Patent number
4,551,991
Issue date
Nov 12, 1985
Hitachi, Ltd.
Nobutaka Miyoshi
F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Patents Applications
last 30 patents
Information
Patent Application
Absorption refrigerator and production method thereof
Publication number
20040211214
Publication date
Oct 28, 2004
Katsumi Mabuchi
F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information
Patent Application
Absorption refrigerator and production method thereof
Publication number
20010029746
Publication date
Oct 18, 2001
Katsumi Mabuchi
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...