Katsumi Fujima

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Refrigerant circulating pump, refrigerant circulating pump system,...
- Patent number 8,266,918
- Issue date Sep 18, 2012
- Mayekawa Mfg. Co., Ltd.
- Hiroshi Yamaguchi
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Grant
CO2 cooling and heating apparatus and method having multiple refrig...
- Patent number 7,818,971
- Issue date Oct 26, 2010
- Mayekawa Mfg. Co., Ltd.
- Hiroshi Yamaguchi
- F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information Patent Grant
Heat pump, heat pump system, method of pumping refrigerant, and ran...
- Patent number 7,530,235
- Issue date May 12, 2009
- The Doshisha
- Hiroshi Yamaguchi
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Grant
Heat pump using CO2 as refrigerant and method of operation thereof
- Patent number 7,412,838
- Issue date Aug 19, 2008
- Mayekawa Mfg. Co., Ltd.
- Kunio Hamanaka
- F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information Patent Grant
Inter-region thermal complementary system by distributed cryogenic...
- Patent number 6,889,520
- Issue date May 10, 2005
- Mayekawa Mfg. Co., Ltd.
- Makoto Sano
- F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...

Patents Applicationslast 30 patents

Information Patent Application
REFRIGERANT CIRCULATING PUMP, REFRIGERANT CIRCULATING PUMP SYSTEM,...
- Publication number 20090277198
- Publication date Nov 12, 2009
- THE DOSHISHA
- Hiroshi YAMAGUCHI
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Application
CO2 COOLING AND HEATING APPARATUS AND METHOD HAVING MULTIPLE REFRIG...
- Publication number 20080245505
- Publication date Oct 9, 2008
- Mayekawa Mfg. Co., Ltd.
- Hiroshi YAMAGUCHI
- F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information Patent Application
HEAT PUMP USING CO2 AS REFRIGERANT AND METHOD OF OPERATION THEREOF
- Publication number 20070261432
- Publication date Nov 15, 2007
- Mayekawa Mfg. Co., Ltd.
- Kunio HAMANAKA
- F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information Patent Application
HEAT PUMP, HEAT PUMP SYSTEM, METHOD OF PUMPING REFRIGERANT, AND RAN...
- Publication number 20070199323
- Publication date Aug 30, 2007
- THE DOSHISHA
- Hiroshi YAMAGUCHI
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Application
Inter-region thermal complementary system by distributed cryogenic...
- Publication number 20040011074
- Publication date Jan 22, 2004
- Makoto Sano
- F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...