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:
Jan. 31, 2012
Filed:
Dec. 01, 2006
Miho Hatanaka, Aichi-gun, JP;
Toshitaka Tanabe, Aichi-gun, JP;
Yasutaka Nagai, Aichi-gun, JP;
Toshio Yamamoto, Nishikamo-gun, JP;
Kazuhiko Dohmae, Nisshin, JP;
Nobuyuki Takagi, Susono, JP;
Masahide Miura, Susono, JP;
Yasuo Ikeda, Toyota, JP;
Miho Hatanaka, Aichi-gun, JP;
Toshitaka Tanabe, Aichi-gun, JP;
Yasutaka Nagai, Aichi-gun, JP;
Toshio Yamamoto, Nishikamo-gun, JP;
Kazuhiko Dohmae, Nisshin, JP;
Nobuyuki Takagi, Susono, JP;
Masahide Miura, Susono, JP;
Yasuo Ikeda, Toyota, JP;
Kabushiki Kaisha Toyota Chuo Kenkyusho, Aichi-Gun, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Abstract
A catalyst for purification of exhaust gas in which a noble metal is supported on a metal-oxide support wherein, in a oxidation atmosphere, the noble metal exists on the surface of the support in high oxidation state, and the noble metal binds with a cation of the support via an oxygen atom on the surface of the support to form a surface oxide layer and, in a reduction atmosphere, the noble metal exists on the surface of the support in a metal state, and an amount of noble metal exposed at the surface of the support, measured by CO chemisorption, is 10% or more in atomic ratio to a whole amount of the noble metal supported on the support.