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:
Mar. 10, 2015
Filed:
Mar. 14, 2013
Applicant:
Ibiden Co., Ltd., Ogaki-shi, Gifu, JP;
Inventors:
Takahiko Okabe, Takahama, JP;
Keiji Kumano, Takahama, JP;
Assignee:
Ibiden Co., Ltd., Ogaki-shi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 50/00 (2006.01); B01D 39/20 (2006.01); B01D 39/14 (2006.01); B01D 39/06 (2006.01); B01D 24/00 (2006.01); D01F 9/08 (2006.01); B01D 46/00 (2006.01); B32B 5/06 (2006.01); B32B 5/26 (2006.01); B32B 1/08 (2006.01);
U.S. Cl.
CPC ...
D01F 9/08 (2013.01); B01D 46/0005 (2013.01); B01D 46/00 (2013.01); B32B 5/06 (2013.01); B32B 5/26 (2013.01); B32B 1/08 (2013.01); B32B 2262/10 (2013.01);
Abstract
A retaining seal material includes inorganic fibers, inorganic particles adhering to surfaces of the inorganic fibers, a first principal surface, and a second principal surface. A mean particle diameter of the inorganic particles in a vicinity of a center in a thickness direction of the retaining seal material is smaller than at least one of a mean particle diameter of the inorganic particles in a vicinity of the first principal surface and a mean particle diameter of the inorganic particles in a vicinity of the second principal surface.