Susumu Tahara

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Tsukuba, JP

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Patents Grantslast 30 patents

Information Patent Grant
Aminoarylsulfonic acid-phenol-formaldehyde condensate and concrete...
- Patent number 5,245,001
- Issue date Sep 14, 1993
- Fujisawa Pharmaceutical Co., Ltd.
- Takahiro Furuhashi
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Aminoarylsulfonic acid-phenol-formaldehyde condensate and concrete...
- Patent number 5,092,934
- Issue date Mar 3, 1992
- Fujisawa Pharmaceutical Co., Ltd.
- Takahiro Furuhashi
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Aminoarylsulfonic acid-phenol-formaldehyde condensate and concrete...
- Patent number 4,936,918
- Issue date Jun 26, 1990
- Fujisawa Pharmaceutical Company, Ltd.
- Takahiro Furuhashi
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES