Kei Matsumoto

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Osaka, JP

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Patents Grantslast 30 patents

Information Patent Grant
Semiconductor porcelain composition
- Patent number 7,893,001
- Issue date Feb 22, 2011
- Hitachi Metals, Ltd.
- Takeshi Shimada
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Semiconductor porcelain composition
- Patent number 7,825,054
- Issue date Nov 2, 2010
- Hitachi Metals, Ltd.
- Takeshi Shimada
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES

Patents Applicationslast 30 patents

Information Patent Application
SEMICONDUCTOR PORCELAIN COMPOSITION
- Publication number 20100323877
- Publication date Dec 23, 2010
- Hitachi Metals, Ltd.
- Takeshi SHIMADA
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Application
SEMICONDUCTOR PORCELAIN COMPOSITION
- Publication number 20090233785
- Publication date Sep 17, 2009
- Takeshi Shimada
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES