Takashi Iwashimizu

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Osaka, JP

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Patents Grantslast 30 patents

Information Patent Grant
Admixture and cement composition using same
- Patent number 5,122,191
- Issue date Jun 16, 1992
- Takenaka Corporation
- Masahiro Morozumi
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Suppression of pressure water absorption of lightweight aggregate b...
- Patent number 4,956,403
- Issue date Sep 11, 1990
- Takenaka Komuten Co., Ltd.
- Toshio Yonezawa
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES