Yasuhisa Ishikawa

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Kanagawa, JP

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Patents Grantslast 30 patents

Information Patent Grant
Semiconductor electrostatic protection device
- Patent number 7,800,180
- Issue date Sep 21, 2010
- Mitsumi Electric Co., Ltd.
- Atsushi Watanabe
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Electrostatic discharge semiconductor protection circuit of reduced...
- Patent number 6,952,037
- Issue date Oct 4, 2005
- Mitsumi Electric Co., Ltd.
- Yasuhisa Ishikawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Static protection device
- Patent number 6,538,290
- Issue date Mar 25, 2003
- Mitsumi Electric Co., Ltd.
- Yasuhisa Ishikawa
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
SEMICONDUCTOR DEVICE
- Publication number 20080001229
- Publication date Jan 3, 2008
- Atsushi WATANABE
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Semiconductor device
- Publication number 20040124471
- Publication date Jul 1, 2004
- Yasuhisa Ishikawa
- H01 - BASIC ELECTRIC ELEMENTS