Invention Grant
- Patent Title: Exhaust gas purification filter, and method of manufacturing exhaust gas purification filter
- Patent Title (中): 废气净化过滤器及废气净化过滤器的制造方法
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Application No.: US13640341Application Date: 2011-04-07
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Publication No.: US08741020B2Publication Date: 2014-06-03
- Inventor: Atsushi Kishimoto , Masamichi Tanaka , Keita Ishizaki , Katsunori Hanamura
- Applicant: Atsushi Kishimoto , Masamichi Tanaka , Keita Ishizaki , Katsunori Hanamura
- Applicant Address: JP Tokyo JP Tokyo
- Assignee: Sumitomo Osaka Cement Co., Ltd.,Honda Motor Co., Ltd.
- Current Assignee: Sumitomo Osaka Cement Co., Ltd.,Honda Motor Co., Ltd.
- Current Assignee Address: JP Tokyo JP Tokyo
- Agency: Squire Sanders (US) LLP
- Priority: JP2010-091628 20100412
- International Application: PCT/JP2011/058777 WO 20110407
- International Announcement: WO2011/129253 WO 20111020
- Main IPC: B01D39/20
- IPC: B01D39/20 ; B01D39/06 ; B01D39/14 ; B01D24/00 ; B01D50/00

Abstract:
An object is to provide an exhaust gas purification filter that can achieve high trapping efficiency of particulate matter and low pressure loss, and the exhaust gas purification filter includes an inflow surface through which exhaust gas containing particulate matter flows in, a discharge surface from which purified gas is discharged, and a filter base body that is formed from a porous body, wherein the filter base body includes porous partition walls and gas flow paths surrounded by the partition walls, a porous film having a pore size smaller than that of pores of the partition walls is provided on each surface of the partition walls, and microgrooves having a depth shallower than the thickness of the porous film are formed on at least a part of a surface of the porous film.
Public/Granted literature
- US20130025247A1 EXHAUST GAS PURIFICATION FILTER, AND METHOD OF MANUFACTURING EXHAUST GAS PURIFICATION FILTER Public/Granted day:2013-01-31
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