Kosei Nagayama

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Ibaraki, JP

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Patents Grantslast 30 patents

Information Patent Grant
Multi-layer ceramic wiring circuit board and process for producing...
- Patent number 4,620,264
- Issue date Oct 28, 1986
- Hitachi, Ltd.
- Nobuyuki Ushifusa
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES