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:
Jun. 29, 2021
Filed:
Sep. 12, 2017
Ngk Insulators, Ltd., Nagoya, JP;
Aya Miura, Nagoya, JP;
Masahiro Furukawa, Nagoya, JP;
NGK Insulators, Ltd., Nagoya, JP;
Abstract
A silica membrane filterincludes an ultrafiltration membrane, which is disposed on a support bodyand which contains an elementas a primary component, and a silica membranewhich is disposed on the ultrafiltration membraneand which has an aryl group. The ultrafiltration membranehas a structure infiltrated by Si of the silica membrane, the atomic ratio A (=Si/M) of Si to the element M in a membrane-side region, which is a region corresponding to 25% of the ultrafiltration membranefrom the silica membrane, satisfies 0.01≤A≤0.5, and the ratio A/B of the atomic ratio A to the atomic ratio B (=Si/M) in a base-material-side region, which is a region corresponding to 25% from the support body, is within the range of 1.1 or more.