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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 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
Method and apparatus for descaling stainless steel
Patent number
4,994,157
Issue date
Feb 19, 1991
Hitachi, Ltd.
Masahiko Itoh
C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
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
Process for partial hot dipping of steel strips
Patent number
4,505,760
Issue date
Mar 19, 1985
Hitachi, Ltd.
Masahiko Itoh
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Hermetically circulating, absorption type refrigerator
Patent number
4,487,036
Issue date
Dec 11, 1984
Hitachi, Ltd.
Masahiko Itoh
F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information
Patent Grant
Hermetically circulating, absorption type refrigerator
Patent number
4,470,272
Issue date
Sep 11, 1984
Hitachi, Ltd.
Masahiko Itoh
F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information
Patent Grant
Hermetically circulating, absorption type refrigerator
Patent number
4,398,399
Issue date
Aug 16, 1983
Hitachi, Ltd.
Masahiko Itoh
F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information
Patent Grant
Hermetically circulating, absorption type refrigerator
Patent number
4,311,024
Issue date
Jan 19, 1982
Hitachi, Ltd.
Masahiko Itoh
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...