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. 12, 1995
Filed:
Dec. 13, 1993
Tadao Nakatsuji, Osaka, JP;
Hiromitsu Shimizu, Osaka, JP;
Ritsu Yasukawa, Osaka, JP;
Masaaki Kawatsuki, Saitama, JP;
Mitsunori Tabata, Saitama, JP;
Hiroshi Tsuchida, Kanagawa, JP;
Yoshiaki Kintaichi, Ibaraki, JP;
Motoi Sasaki, Ibaraki, JP;
Sakai Chemical Industry Co., Ltd., Osaka, JP;
Petroleum Energy Center, Tokyo, JP;
Cosmo Oil Co., Ltd., Tokyo, JP;
Agency of Industrial Science and Technology, Tokyo, JP;
Abstract
A novel catalyst for catalytic reduction of nitrogen oxide using a hydrocarbon as a reducing agent is provided, which comprises (a) at least an element of the platinum group selected from the group consisting of platinum, iridium, rhodium and ruthenium and (b) gold, and which may further comprises (c) at least a metallic oxide selected from the group consisting of cerium oxide, lanthanum oxide, neodymium oxide, germanium oxide and gallium oxide.