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. 16, 1993
Filed:
Mar. 19, 1992
Applicant:
Inventors:
Masaaki Yonemura, Nara, JP;
Takao Kusuda, Ashiya, JP;
Assignee:
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
55466 ; 55523 ; 55DI / ; 60311 ; 60275 ;
Abstract
This exhaust filter element has a corrugated honeycomb structure made of the porous fibrous ceramics, of which cells are alternately plugged; and is made of material having a higher dielectric factor at an inflow side or an outer circumference portion than at an inside portion. The filter element can be regenerated by irradiation of micro wave after it is soiled by particulates in an exhausted gas.