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:
Oct. 13, 2009
Filed:
Mar. 18, 2005
Hirohisa Tanaka, Shiga, JP;
Isao Tan, Shiga, JP;
Mari Uenishi, Shiga, JP;
Nobuhiko Kajita, Shiga, JP;
Masashi Taniguchi, Shiga, JP;
Kimiyoshi Kaneko, Kanagawa, JP;
Senshu Mitachi, Kanagawa, JP;
Mareo Kimura, Shizuoka, JP;
Keiichi Narita, Shizuoka, JP;
Noboru Sato, Shizuoka, JP;
Hirohisa Tanaka, Shiga, JP;
Isao Tan, Shiga, JP;
Mari Uenishi, Shiga, JP;
Nobuhiko Kajita, Shiga, JP;
Masashi Taniguchi, Shiga, JP;
Kimiyoshi Kaneko, Kanagawa, JP;
Senshu Mitachi, Kanagawa, JP;
Mareo Kimura, Shizuoka, JP;
Keiichi Narita, Shizuoka, JP;
Noboru Sato, Shizuoka, JP;
Daihatsu Motor Co., Ltd., Osaka, JP;
Hokko Chemical Industry Co., Ltd., Tokyo, JP;
Cataler Corporation, Shizuoka, JP;
Abstract
To provide a perovskite-type composite oxide which has stable quality in which a solid solution of Pd is formed at a high rate, a method for producing the perovskite-type composite oxide, and a catalyst composition containing the perovskite-type composite oxide, the perovskite-type composite oxide is produced by formulating materials in accordance with each atomic ratio of a perovskite-type composite oxide represented by the following general formula (1):ABPdO  (1)wherein A represents at least one element selected from rare earth elements and alkaline earth metals; B represents at least one element selected from transition elements (excluding rare earth elements, and Pd), Al and Si; x represents an atomic ratio satisfying the following condition: 1<x; y represents an atomic ratio satisfying the following condition: 0<y≦0.5; and δ represents an oxygen excess.