Hideya Kokubun

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Takahagi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Circuit board
- Patent number 7,141,741
- Issue date Nov 28, 2006
- Hitachi, Ltd.
- Kazuji Yamada
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Semiconductor device
- Patent number 6,434,008
- Issue date Aug 13, 2002
- Hitachi, Ltd.
- Kazuji Yamada
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Semiconductor device having power semiconductor elements
- Patent number 5,956,231
- Issue date Sep 21, 1999
- Hitachi, Ltd.
- Kazuji Yamada
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Semiconductor device having thermal stress resistance structure
- Patent number 5,621,243
- Issue date Apr 15, 1997
- Hitachi, Ltd.
- Noboru Baba
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
Circuit board
- Publication number 20040056349
- Publication date Mar 25, 2004
- Kazuji Yamada
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Semiconductor device
- Publication number 20030016502
- Publication date Jan 23, 2003
- Kazuji Yamada
- H01 - BASIC ELECTRIC ELEMENTS