Hiroyoshi Aikawa

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Fukushima, JP

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Patents Grantslast 30 patents

Information Patent Grant
Fused spherical silica for liquid sealant and liquid sealing resin...
- Patent number 6,303,223
- Issue date Oct 16, 2001
- Nippon Chemical Industrial Co., Ltd.
- Yutaka Kinose
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES