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. 12, 2010
Filed:
Sep. 24, 2004
Yuichi Matsuo, Saitama, JP;
Kazunori Kiguchi, Saitama, JP;
Norihiko Suzuki, Saitama, JP;
Atsushi Furukawa, Saitama, JP;
Yuichi Matsuo, Saitama, JP;
Kazunori Kiguchi, Saitama, JP;
Norihiko Suzuki, Saitama, JP;
Atsushi Furukawa, Saitama, JP;
Honda Motor Co., Ltd., Tokyo, JP;
Abstract
A catalyst for exhaust gas purification is provided that can not only efficiently and simultaneously purify nitrogen oxides, hydrocarbons and carbon monoxide in exhaust gas emitted from internal combustion engines such as those of automobiles even at lower temperatures, but also exhibits higher durability. The coexistence of a complex oxide that includes a rare earth element and palladium, a rare earth oxide, and a perovskite-type complex oxide that is expressed by the general formula LnAlO, in which Ln is a rare earth element, may provide a catalyst that not only efficiently purifies the exhaust gas emitted from internal combustion engines such as those of automobiles even at lower temperatures, but also exhibits higher durability.