Masaaki Obata

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Aichi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method of producing silicon nitride ceramics having thermal high co...
- Patent number 5,902,542
- Issue date May 11, 1999
- Japan as represented by Director General of Agency of Industrial Science and...
- Kiyoshi Hirao
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Method for production of aluminum nitride sintered body and aluminu...
- Patent number 5,837,633
- Issue date Nov 17, 1998
- Agency of Industrial Science and Technology
- Motohiro Toriyama
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES