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:
Aug. 08, 2017
Filed:
Mar. 30, 2012
Takafumi Kasuga, Ibi-gun, JP;
Misako Makino, Ibi-gun, JP;
Kazuki Nakamura, Ibi-gun, JP;
Yuichi Nagatsu, Ibi-gun, JP;
Takeshi Ushida, Ibi-gun, JP;
Takafumi Kasuga, Ibi-gun, JP;
Misako Makino, Ibi-gun, JP;
Kazuki Nakamura, Ibi-gun, JP;
Yuichi Nagatsu, Ibi-gun, JP;
Takeshi Ushida, Ibi-gun, JP;
IBIDEN CO., LTD., Ogaki-shi, JP;
Abstract
An object of the present invention is to provide a honeycomb filter capable of achieving a combination of high collection efficiency and low pressure loss. The honeycomb filter comprises a ceramic honeycomb substrate in which a multitude of cells through which a fluid flows are disposed in parallel in a longitudinal direction and are separated by cell walls, each cell being sealed at an end section at either the fluid inlet side or the fluid outlet side, and a filter layer which, among the surfaces of the cell walls, is formed on the surface of the cell walls of those cells in which the end section at the fluid inlet side is open and the end section at the fluid outlet side is sealed by a sealing material, wherein the thickness of the filter layer increases gradually from the fluid inlet side toward the fluid outlet side.