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. 06, 2018
Filed:
Mar. 17, 2017
Asahi Kasei E-materials Corporation, Tokyo, JP;
Hiroshi Murata, Tokyo, JP;
Hiroshi Hatayama, Tokyo, JP;
Yuki Uchida, Tokyo, JP;
Masaki Ishikawa, Tokyo, JP;
Asahi Kasei E-materials Corporation, Tokyo, JP;
Abstract
A multilayer porous membrane comprising a porous membrane containing a polyolefin resin as a main component; and a porous layer containing an inorganic filler and a resin binder and laminated on at least one surface of the porous membrane; wherein the porous membrane has an average pore size d=0.035 to 0.060 μm, a tortuosity τ=1.1 to 1.7, and the number B of pores=100 to 500 pores/μm, which are calculated by a gas-liquid method, and the porous membrane has a membrane thickness L=5 to 22 μm.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile