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. 16, 2007
Filed:
Jun. 17, 2002
Shinji Yamamoto, Yokosuka, JP;
Masahiro Takaya, Yokosuka, JP;
Shinji Yamamoto, Yokosuka, JP;
Masahiro Takaya, Yokosuka, JP;
Nissan Motor Co., Ltd., Yokohama, JP;
Abstract
A vehicle-mounted exhaust gas purifying system includes at least a first three-way catalyst and a plurality of HC adsorbing/purifying catalysts downstream thereof on an exhaust gas passage. Each of the HC adsorbing/purifying catalysts includes a monolithic carrier having a plurality of cells, and includes HC adsorbent layer and purifying catalyst layer, which are formed on the monolithic carrier. Moreover, the number of cells per unit areas of one HC adsorbing/purifying catalysts on an upstream side is larger than the number of cells per unit areas of another HC adsorbing/purifying catalyst on a downstream side.