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:
Jan. 10, 2017
Filed:
Feb. 11, 2016
Sumitomo Chemical Company, Limited, Chuo-ku, Tokyo, JP;
Sumitomo Chemical Company, Limited, Tokyo, JP;
Abstract
This particulate filterhas a columnar ceramic honeycomb structureincluding first flow channelsand second flow channels. Adjacently to each of the first flow channels, the second flow channeland the other first flow channelare arranged through a partition wall portion forming each of the first flow channels. A sum total of areas of the inner faces of the first flow channelsper apparent unit volume of the ceramic honeycomb structureis 1.5 to 2.5 m/L; a number density of a total of the first flow channelsand the second flow channelsis 150 to 350 per unit square inch in a cross section perpendicular to an axis of the ceramic honeycomb structure; and a hydraulic diameter of each of the first flow channelsis 0.5 to 1.0 mm.