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:
Aug. 02, 2016
Filed:
Nov. 30, 2012
Applicant:
Komatsu Seiren Co., Ltd., Nomi, Ishikawa, JP;
Inventors:
Teruhiro Okuya, Nomi, JP;
Yutaka Hayashi, Nomi, JP;
Kohsuke Togashi, Nomi, JP;
Akihisa Kaneda, Nomi, JP;
Takeshi Ohta, Nomi, JP;
Assignee:
KOMATSU SEIREN CO., LTD., Nomi, Ishikawa, JP;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C04B 33/04 (2006.01); C04B 38/10 (2006.01); C04B 38/02 (2006.01); C04B 41/91 (2006.01); C04B 41/00 (2006.01); C04B 41/53 (2006.01); C04B 111/00 (2006.01);
U.S. Cl.
CPC ...
C04B 33/04 (2013.01); C04B 38/02 (2013.01); C04B 41/009 (2013.01); C04B 41/53 (2013.01); C04B 41/91 (2013.01); C04B 2111/00284 (2013.01); C04B 2235/602 (2013.01);
Abstract
A porous ceramic for which any decrease in water permeability can be suppressed over a long period of time. A porous ceramic is composed of a porous ceramic sintered body produced by molding and sintering a mixture containing a clay, wherein a surface portion of the porous ceramic sintered body has been removed by grinding. The mixture preferably contains a foaming agent.