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 7988922 B1

PDF
Full Text
Expired
Date of Patent:
Aug. 02, 2011

Filed:

Mar. 28, 2008
Applicants:

Kazushige Ohno, Ibi-gun, JP;

Akihiro Ohira, Ibi-gun, JP;

Masafumi Kunieda, Ibi-gun, JP;

Inventors:

Kazushige Ohno, Ibi-gun, JP;

Akihiro Ohira, Ibi-gun, JP;

Masafumi Kunieda, Ibi-gun, JP;

Assignee:

Ibiden Co., Ltd., Ogaki-shi, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 50/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A honeycomb filter includes a honeycomb fired body having cells longitudinally disposed either end of each cell being sealed. The honeycomb filter includes an outlet-side catalyst supporting area, an inlet-side catalyst supporting area, and a catalyst unsupporting area formed between the catalyst supporting areas. A thermal conductivity of the catalyst unsupporting area is larger than those of the catalyst supporting areas. Y (%), Z (%), and X (%) satisfy the following inequalities, about 1≦Y≦about 19, (880−70Y)/9≦Z≦(825−15Y)/9 (about 1≦Y≦about 10), (330−15Y)/9≦Z≦(1375−70Y)/9 (about 10≦Y≦about 19), and X=100−Y−Z in which Y, Z, X indicate a ratio of a length of the outlet-side catalyst supporting area, the inlet-side catalyst supporting area, the catalyst unsupporting area, respectively, to an entire length of the honeycomb filter.


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Ohno, Kazushige. (2011). Honeycomb filter and exhaust gas purifying apparatus (U.S. Patent No. 7988922). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7988922

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