Yuji Yoshikawa

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Hikone, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method for manufacturing piezoelectric ceramic composition, piezoel...
- Patent number 6,440,324
- Issue date Aug 27, 2002
- Murata Manufacturing Co., Ltd.
- Koichi Hayashi
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES