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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 9011569 B1

PDFFull Text
Date of Patent:
Apr. 21, 2015

Filed:

Jun. 29, 2012

Particulate filter

Applicants:

Hiroshi Otsuki, Susono, JP;

Shigeki Nakayama, Gotenba, JP;

Hiromasa Nishioka, Susono, JP;

Katsuhiko Oshikawa, Tokyo, JP;

Yoshihisa Tsukamoto, Susono, JP;

Junichi Matsuo, Susono, JP;

Yuichi Sobue, Susono, JP;

Daichi Imai, Susono, JP;

Kou Sugawara, Kakegawa, JP;

Inventors:

Hiroshi Otsuki, Susono, JP;

Shigeki Nakayama, Gotenba, JP;

Hiromasa Nishioka, Susono, JP;

Katsuhiko Oshikawa, Tokyo, JP;

Yoshihisa Tsukamoto, Susono, JP;

Junichi Matsuo, Susono, JP;

Yuichi Sobue, Susono, JP;

Daichi Imai, Susono, JP;

Kou Sugawara, Kakegawa, JP;

Assignee:

Toyota Jidosha Kabushiki Kaisha, Toyota, JP;

Attorney:

Oliff PLC

Primary Examiner:

Amber Orlando

Int. Cl.
CPC ...
B01D 39/14 (2006.01); B01D 39/06 (2006.01); B01D 39/20 (2006.01); B01D 24/00 (2006.01); B01D 50/00 (2006.01); F01N 3/023 (2006.01); B01D 46/24 (2006.01); B01D 46/00 (2006.01); F01N 3/022 (2006.01); F01N 3/035 (2006.01); F01N 3/021 (2006.01); B01D 46/32 (2006.01); B01D 53/64 (2006.01); F01N 3/08 (2006.01); B01D 41/00 (2006.01); B01D 53/82 (2006.01); F01N 3/00 (2006.01);
U.S. Cl.
CPC ...
F01N 3/023 (2013.01); B01D 46/2418 (2013.01); B01D 46/006 (2013.01); F01N 3/0222 (2013.01); F01N 3/035 (2013.01); B01D 46/0061 (2013.01); F01N 3/021 (2013.01); F01N 3/0232 (2013.01); B01D 46/00 (2013.01); B01D 46/32 (2013.01); B01D 53/64 (2013.01); B01D 2279/30 (2013.01); F01N 3/085 (2013.01); B01D 41/00 (2013.01); B01D 53/82 (2013.01); B01D 2257/302 (2013.01); B01D 2259/40083 (2013.01); F01N 3/00 (2013.01); F01N 3/022 (2013.01);
Abstract

A wall flow type particulate filter () adapted to be arranged in an exhaust passage of an internal combustion engine in which combustion is performed in an excess of oxygen carries a solid acid. The solid acid has an acid strength which is higher than the acid strength of sulfurous acid and lower than the acid strength of sulfuric acid.

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