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:
May. 03, 2005
Filed:
May. 29, 2002
Mamoru Nishimura, Nagoya, JP;
Mikio Ishihara, Kariya, JP;
Yoshitsugu Ogura, Toyota, JP;
Denso Corporation, Aichi-Pref., JP;
Toyota Jidosha Kabushiki Kaisha, Aichi-ken, JP;
Abstract
The present invention provides an exhaust gas purifying filter that has an increased contact area, between a catalyst supported on the dividing walls of a honeycomb structural body and particulate matter deposited thereon, and can improve the capacity of the catalyst to oxidize the particulate matter, and a method of manufacturing the same. According to the present invention, the exhaust gas purifying filtercomprising the honeycomb structural bodymade of ceramic and the catalystsupported on the surface of the dividing wallsof the honeycomb structural bodyhas void ratio, of the dividing wallof the honeycomb structural body, in a range from 55 to 80%, and the proportion of surface pores is 20% or higher.