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:
Mar. 04, 2008
Filed:
Mar. 07, 2005
Applicants:
Yuichi Matsuo, Wako, JP;
Kazunori Kiguchi, Wako, JP;
Norihiko Suzuki, Wako, JP;
Atsushi Furukawa, Wako, JP;
Inventors:
Yuichi Matsuo, Wako, JP;
Kazunori Kiguchi, Wako, JP;
Norihiko Suzuki, Wako, JP;
Atsushi Furukawa, Wako, JP;
Assignee:
Honda Motor Co., Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
B01J 23/02 (2006.01); B01J 23/42 (2006.01); B01J 23/44 (2006.01); B01J 23/58 (2006.01); B01J 21/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
A purification catalyst for exhaust gas enhances the activity for each precious metal by effectively utilizing the precious metal without incurring a high production cost, thereby improving endurance. The purification catalyst for exhaust gas comprises a composite oxide supporting Pd, the composite oxide has a rational formula MXOin which M is an alkali metal element and X is an element in group 5 in periodic table, and a perovskite crystal structure.