The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 14, 2013
Filed:
Aug. 19, 2009
Applicants:
Tetsuharu Ibaraki, Tokyo, JP;
Yukihiko Nagao, Tokyo, JP;
Inventors:
Tetsuharu Ibaraki, Tokyo, JP;
Yukihiko Nagao, Tokyo, JP;
Assignees:
Nippon Steel & Sumitomo Metal Corporation, Tokyo, JP;
Nippon Steel Esment Kanto Co., Ltd, Chiba, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C04B 11/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A ground granulated blast furnace slag for sulfate resistant cement comprising a mixture of ground granulated blast furnace slag with an alumina content of 12 to 17.5 mass % and high dissolution rate gypsum of 2 to 6 mass % of gypsum converted to mass of SO.