Tomohiro Koyama

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Patents Grantslast 30 patents

Information Patent Grant
Cryopump control apparatus, cryopump system, and method for monitor...
- Patent number 8,800,304
- Issue date Aug 12, 2014
- Sumitomo Heavy Industries, Ltd.
- Tomohiro Koyama
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Cryopump and method for diagnosing the cryopump
- Patent number 8,336,318
- Issue date Dec 25, 2012
- Sumitomo Heavy Industries, Ltd.
- Tomohiro Koyama
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Grant
Coreless and brushless direct-current motor, Gifford McMahon (GM) c...
- Patent number 8,053,946
- Issue date Nov 8, 2011
- Sumitomo Heavy Industries, Ltd.
- Tatsuo Koizumi
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Coreless and brushless direct-current motor, Gifford McMahon (GM) c...
- Patent number 7,719,160
- Issue date May 18, 2010
- Sumitomo Heavy Industries, Ltd.
- Tatsuo Koizumi
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Cryogenic refrigerator
- Patent number 7,308,797
- Issue date Dec 18, 2007
- Sumitomo Heavy Industries, Ltd.
- Rui Li
- F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...

Patents Applicationslast 30 patents

Information Patent Application
CRYOPUMP CONTROL APPARATUS, CRYOPUMP SYSTEM, AND METHOD FOR MONITOR...
- Publication number 20120317999
- Publication date Dec 20, 2012
- Sumitomo Heavy Industries, Ltd.
- Tomohiro Koyama
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
Cryopump and method for diagnosing the cryopump
- Publication number 20090282842
- Publication date Nov 19, 2009
- Sumitomo Heavy Industries, Ltd.
- Tomohiro Koyama
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Application
CORELESS AND BRUSHLESS DIRECT-CURRENT MOTOR, GIFFORD MCMAHON (GM) C...
- Publication number 20090280988
- Publication date Nov 12, 2009
- Sumitomo Heavy Industries, Ltd.
- Tatsuo Koizumi
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Coreless and brushless direct-current motor, Gifford McMahon (GM) c...
- Publication number 20080024034
- Publication date Jan 31, 2008
- Sumitomo Heavy Industries, Ltd.
- Tatsuo Koizumi
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Cryogenic refrigerator
- Publication number 20050028534
- Publication date Feb 10, 2005
- Rui Li
- F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...