Masahiko Matsumiya

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Chiaki, JP

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Patents Grantslast 30 patents

Information Patent Grant
Dielectric ceramic material
- Patent number 6,995,106
- Issue date Feb 7, 2006
- NGK Spark Plug Co., Ltd.
- Takashi Oba
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Dielectric composition for high frequency resonators
- Patent number 6,720,280
- Issue date Apr 13, 2004
- NGK Spark Plug Co., Ltd.
- Katsuya Yamagiwa
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
Dielectric composition for high frequency resonators
- Publication number 20030176273
- Publication date Sep 18, 2003
- Katsuya Yamagiwa
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Application
Dielectric ceramic material
- Publication number 20030109374
- Publication date Jun 12, 2003
- Takashi Oba
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES