Tomonori Sugiyama

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Patents Grantslast 30 patents

Information Patent Grant
High-frequency porcelain composition, process for producing the sam...
- Patent number 7,368,407
- Issue date May 6, 2008
- Yasufuku Ceramics Co., Ltd.
- Tsutomu Tsunooka
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
High-frequency porcelain compostion, process for producing the same...
- Publication number 20070027022
- Publication date Feb 1, 2007
- Tsutomu Tsunooka
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES