Kazuhiro Naganuma

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Porous particles of calcium phosphate compound and production proce...
- Patent number 5,158,756
- Issue date Oct 27, 1992
- Asahi Kogaku Kogyo Kabushiki Kaisha
- Tetsuro Ogawa
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES