Yuko Kajiyama

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Hitachiota, JP

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Patents Grantslast 30 patents

Information Patent Grant
Vacuum insulated switch-gear and its height adjusting method
- Patent number 8,304,678
- Issue date Nov 6, 2012
- Hitachi, Ltd.
- Shuichi Kikukawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Vacuum insulated switchgear
- Patent number 7,897,890
- Issue date Mar 1, 2011
- Hitachi, Ltd.
- Shuichi Kikukawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Switchgear
- Patent number 7,813,109
- Issue date Oct 12, 2010
- Hitachi, Ltd.
- Shuichi Kikukawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Distribution switchgear
- Patent number 7,518,851
- Issue date Apr 14, 2009
- Hitachi, Ltd.
- Kenji Tsuchiya
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Patents Applicationslast 30 patents

Information Patent Application
VACUUM INSULATED SWITCH-GEAR AND ITS HEIGHT ADJUSTING METHOD
- Publication number 20100025376
- Publication date Feb 4, 2010
- Hitachi, Ltd.
- Shuichi KIKUKAWA
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
SWITCHGEAR
- Publication number 20090237869
- Publication date Sep 24, 2009
- Shuichi Kikukawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
VACUUM INSULATED SWITCHGEAR
- Publication number 20080067152
- Publication date Mar 20, 2008
- Shuichi Kikukawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
DISTRIBUTION SWITCHGEAR
- Publication number 20080007896
- Publication date Jan 10, 2008
- Kenji Tsuchiya
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER