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:
Sep. 11, 2012
Filed:
Jan. 25, 2008
Applicant:
Takahiko Okabe, Ogaki, JP;
Inventor:
Takahiko Okabe, Ogaki, JP;
Assignee:
Ibiden Co., Ltd., Ogaki-Shi, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D 24/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A sheet member including inorganic fibers includes a first outer layer; a center layer; and a second outer layer. The first outer layer, the center layer, and the second outer layer are laminated with each other such that both the first and the second outer layers are outermost layers; the center layer includes inorganic fibers having diameters equal to or less than approximately 3 micrometers; and the first and the second outer layers include inorganic fibers having diameters greater than approximately 3 micrometers.