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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 11618009 B1

PDFFull Text
Date of Patent:
Apr. 04, 2023

Filed:

Mar. 26, 2020

Honeycomb catalytic converter

Applicants:

Ibiden Co., Ltd., Ogaki, JP;

Toyota Jidosha Kabushiki Kaisha, Toyota, JP;

Inventors:

Shinnosuke Goto, Ibi-gun, JP;

Takumi Tojo, Toyota, JP;

Takeru Yoshida, Toyota, JP;

Hiromasa Suzuki, Toyota, JP;

Assignees:

IBIDEN CO., LTD., Ogaki, JP;

TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;

Attorney:

Mori & Ward, LLP

Primary Examiner:

Cam N Nguyen

Int. Cl.
CPC ...
B01J 21/04 (2006.01); B01J 21/06 (2006.01); B01J 23/10 (2006.01); B01J 23/44 (2006.01); B01J 23/46 (2006.01); B01J 23/56 (2006.01); B01J 23/63 (2006.01); B01J 35/00 (2006.01); B01J 35/04 (2006.01); F01N 3/28 (2006.01); B01D 53/94 (2006.01);
U.S. Cl.
CPC ...
B01J 23/462 (2013.01); B01D 53/9472 (2013.01); B01J 23/10 (2013.01); B01J 23/44 (2013.01); B01J 35/0006 (2013.01); B01J 35/04 (2013.01); F01N 3/28 (2013.01); B01D 2255/1023 (2013.01); B01D 2255/1025 (2013.01); B01D 2255/9032 (2013.01); F01N 2330/02 (2013.01); F01N 2370/02 (2013.01);
Abstract

The present invention relates to a honeycomb catalytic converter, including: a honeycomb structured body in which multiple through-holes are arranged longitudinally in parallel with one another with a partition wall therebetween; and Pd and Rh supported on the partition walls of the honeycomb structured body, wherein the honeycomb structured body is an extrudate containing a ceria-zirconia complex oxide and alumina, a Pd-carrying region where only Pd is supported is formed on the partition walls within a predetermined width from one end of the honeycomb structured body, and a Rh-carrying region where only Rh is supported is formed on the partition walls within a predetermined width from the other end of the honeycomb structured body, and the Pd-carrying region extends to at least 50% of the length of the honeycomb structured body, and the Rh-carrying region extends to at least 20% of the length of the honeycomb structured body.

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