Kenji Koyama

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Semiconductor device
- Patent number 7,091,587
- Issue date Aug 15, 2006
- Renesas Technology Corp.
- Yusuke Sato
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Composite material member for semiconductor device and insulated an...
- Patent number 6,579,623
- Issue date Jun 17, 2003
- Hitachi, Ltd.
- Yasutoshi Kurihara
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Semiconductor device having switching elements around a central con...
- Patent number 6,441,484
- Issue date Aug 27, 2002
- Hitachi, Ltd.
- Kenji Koyama
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
Semiconductor device
- Publication number 20060261460
- Publication date Nov 23, 2006
- Yusuke Sato
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Semiconductor device
- Publication number 20040201094
- Publication date Oct 14, 2004
- Yusuke Sato
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Composite material member for semiconductor device and insulated an...
- Publication number 20030201530
- Publication date Oct 30, 2003
- Hitachi, Ltd.
- Yasutoshi Kurihara
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Application
Composite material member for semiconductor device and insulated an...
- Publication number 20020192488
- Publication date Dec 19, 2002
- Yasutoshi Kurihara
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Semiconductor device and a method of manufacturing the same
- Publication number 20010048148
- Publication date Dec 6, 2001
- Kenji Koyama
- H01 - BASIC ELECTRIC ELEMENTS