Toshikazu Okubo

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Hitachi, JP

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Patents Grantslast 30 patents

Information Patent Grant
DC-DC converter
- Patent number 8,203,322
- Issue date Jun 19, 2012
- Hitachi, Ltd.
- Toshikazu Okubo
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Bi-directional DC-DC converter and control method
- Patent number 7,936,573
- Issue date May 3, 2011
- Hitachi, Ltd.
- Tatsumi Yamauchi
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Bi-directional DC-DC converter and control method
- Patent number 7,692,935
- Issue date Apr 6, 2010
- Hitachi, Ltd.
- Tatsumi Yamauchi
- B60 - VEHICLES IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
AC-DC CONVERTER AND METHOD OF CONTROLLING SAME
- Publication number 20120275203
- Publication date Nov 1, 2012
- Takae Shimada
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
Bi-Directional DC-DC Converter and Control Method
- Publication number 20100142228
- Publication date Jun 10, 2010
- HITACHI, LTD.
- Tatsumi Yamauchi
- B60 - VEHICLES IN GENERAL
Information Patent Application
DC-DC CONVERTER
- Publication number 20100061122
- Publication date Mar 11, 2010
- Hitachi, Ltd.
- Toshikazu OKUBO
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
Bi-directional DC-DC converter and control method
- Publication number 20070139975
- Publication date Jun 21, 2007
- HITACHI, LTD.
- Tatsumi Yamauchi
- B60 - VEHICLES IN GENERAL