Hiroyasu Ota

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Yokohama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Sintered body of ceramics and preparation thereof
- Patent number 4,407,970
- Issue date Oct 4, 1983
- Tokyo Shibaura Denki Kabushiki Kaisha
- Michiyasu Komatsu
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES