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:
Dec. 01, 2009
Filed:
Dec. 13, 2005
Satoshi Matsueda, Shizuoka, JP;
Mareo Kimura, Shizuoka, JP;
Naoto Miyoshi, Shizuoka, JP;
Yoshinori Ishii, Shizuoka, JP;
Hirohisa Tanaka, Shiga, JP;
Isao Tan, Shiga, JP;
Mari Uenishi, Shiga, JP;
Masashi Taniguchi, Shiga, JP;
Satoshi Matsueda, Shizuoka, JP;
Mareo Kimura, Shizuoka, JP;
Naoto Miyoshi, Shizuoka, JP;
Yoshinori Ishii, Shizuoka, JP;
Hirohisa Tanaka, Shiga, JP;
Isao Tan, Shiga, JP;
Mari Uenishi, Shiga, JP;
Masashi Taniguchi, Shiga, JP;
Cataler Corporation, Shizuoka, JP;
Daihatsu Motor Co., Ltd., Osaka, JP;
Abstract
To provide a heat-resistant oxide which is excellent in heat resistance and durability at high temperature and has high activity, a heat-resistant oxide which has an oxide crystal structure and in which a rate of a solid solution of a noble metal in the oxide crystal structure is 50% or more is obtained by heat-treating (secondarily baking) a precursor composition comprising zirconia, at least one coordinative element selected from the group consisting of rare earth elements, alkaline earth elements, aluminum and silicon, and at least one noble metal selected from the group consisting of platinum, rhodium and palladium at 650° C. or higher.