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:
Feb. 02, 2010
Filed:
Nov. 24, 2004
Yasuyoshi Kato, Kure, JP;
Takashi Michimoto, Kure, JP;
Eiji Miyamoto, Kure, JP;
Naomi Imada, Kure, JP;
Masatochi Fujisawa, Kure, JP;
Kazuki Kobayashi, Kure, JP;
Hiroshi Ishizaka, Kure, JP;
Takeshi Hirota, Kure, JP;
Yasuyoshi Kato, Kure, JP;
Takashi Michimoto, Kure, JP;
Eiji Miyamoto, Kure, JP;
Naomi Imada, Kure, JP;
Masatochi Fujisawa, Kure, JP;
Kazuki Kobayashi, Kure, JP;
Hiroshi Ishizaka, Kure, JP;
Takeshi Hirota, Kure, JP;
Babcock-Hitachi Kabushiki Kaisha, Tokyo, JP;
Abstract
A particulate matter-removing filter being resistant to clogging and ash blocking, requiring no special means such as back-washing and heating combustion, and being formed of inexpensive materials; and exhaust emission controlling method and device using this. (1) A particulate-matter-containing exhaust emission controlling filter which uses as a basic unit a pair of porous corrugated sheet and a porous flat sheet that support an exhaust emission controlling catalyst, has a molding formed by laminating the porous corrugated sheets so that their ridge lines alternately cross perpendicularly, has one of side surfaces, perpendicularly crossing the corrugated sheet ridge lines, of the molding or mutually-adjoining two surfaces that are the perpendicularly-crossing side surfaces sealed, and has exhaust gas in-flow passage and out-flow passage respectively formed between porous corrugated sheets via a porous flat sheet. (2) A filter having the exhaust emission controlling catalyst that is an oxidizing catalyst for oxidizing nitrogen monoxide in an exhaust gas.