Yasuo Kawamura

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Process for continuous modification of dihydrate gypsum and modifie...
- Patent number 9,458,025
- Issue date Oct 4, 2016
- Yoshino Gypsum Co., Ltd.
- Itaru Yokoyama
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Process for continuous modification of dihydrate gypsum and modifie...
- Patent number 8,529,863
- Issue date Sep 10, 2013
- Yoshino Gypsum Co., Ltd.
- Itaru Yokoyama
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES

Patents Applicationslast 30 patents

Information Patent Application
PROCESS FOR CONTINUOUS MODIFICATION OF DIHYDRATE GYPSUM AND MODIFIE...
- Publication number 20140030173
- Publication date Jan 30, 2014
- Itaru YOKOYAMA
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Application
PROCESS FOR CONTINUOUS MODIFICATION OF DIHYDRATE GYPSUM AND MODIFIE...
- Publication number 20110135930
- Publication date Jun 9, 2011
- YOSHINO GYPSUM CO., LTD.
- Itaru Yokoyama
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES