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:
Nov. 30, 2010
Filed:
Jul. 22, 2005
Toshitaka Tanabe, Aichi, JP;
Akira Morikawa, Nagoya, JP;
Naoki Takahashi, Nagoya, JP;
Hiromasa Suzuki, Toyota, JP;
Akemi Sato, Toyota, JP;
Mamoru Ishikiriyama, Fujieda, JP;
Takaaki Kanazawa, Toyota, JP;
Oji Kuno, Toyota, JP;
Toshitaka Tanabe, Aichi, JP;
Akira Morikawa, Nagoya, JP;
Naoki Takahashi, Nagoya, JP;
Hiromasa Suzuki, Toyota, JP;
Akemi Sato, Toyota, JP;
Mamoru Ishikiriyama, Fujieda, JP;
Takaaki Kanazawa, Toyota, JP;
Oji Kuno, Toyota, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi-ken, JP;
Kabushiki Kaisha Toyota Chuo Kenkyusho, Aichi-Gun, Aichi, JP;
Abstract
The catalyst carrier in accordance with the present invention is a catalyst carrier comprising a support containing an oxide and an element in group 3A of the periodic table, and a coating part covering at least a part of a surface of the support; wherein the coating part contains an element in group 3A of the periodic table; and wherein the element in group 3A contained in the coating part has a concentration higher than that of the element in group 3A contained in the support. In this case, even when a catalyst in which rhodium is supported by the catalyst carrier is used for a long time in a high temperature environment, the grain growth of rhodium particles can be suppressed, and the catalyst can fully be prevented from lowering its activity.