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.:

US 9802867 B1

PDF
Full Text
Expired
Date of Patent:
Oct. 31, 2017

Filed:

May. 23, 2014
Applicant:

Yoshino Gypsum Co., Ltd., Tokyo, JP;

Inventors:

Ushio Sudo, Tokyo, JP;

Hiroaki Itano, Tokyo, JP;

Yosuke Sato, Tokyo, JP;

Tomoaki Sawada, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C04B 28/14 (2006.01); C04B 22/16 (2006.01); E04C 2/04 (2006.01); C04B 103/12 (2006.01); C04B 111/00 (2006.01);
U.S. Cl.
CPC ...
C04B 28/14 (2013.01); C04B 22/16 (2013.01); C04B 28/147 (2013.01); E04C 2/043 (2013.01); C04B 2103/12 (2013.01); C04B 2111/0062 (2013.01); C04B 2111/00094 (2013.01); C04B 2111/00603 (2013.01); C04B 2201/20 (2013.01);
Abstract

A gypsum hardened body including a gypsum slurry that has been hardened is provided. The gypsum slurry is obtained by mixing calcined gypsum, calcium hydrogen phosphate dihydrate, water, and foam. The specific gravity of the gypsum hardened body is greater than or equal to 0.3 and less than or equal to 0.8.


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