Kouichi Ikai

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Hiratuska, JP

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Patents Grantslast 30 patents

Information Patent Grant
Rubber composition comprising carbon black surface treated with silica
- Patent number 5,883,179
- Issue date Mar 16, 1999
- The Yokohama Rubber Co., Ltd.
- Masayuki Kawazoe
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Surface-treated carbon black and rubber composition containing same
- Patent number 5,679,728
- Issue date Oct 21, 1997
- The Yokohama Rubber Co., Ltd.
- Tetsuji Kawazura
- C01 - INORGANIC CHEMISTRY