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:
Nov. 10, 2009
Filed:
Nov. 01, 2005
Takeshi Kobayashi, Ibaraki, JP;
Masaaki Kawabe, Ibaraki, JP;
Fuminori Kimura, Tokyo, JP;
Masahiro Amagasa, Ibaraki, JP;
Takeshi Kobayashi, Ibaraki, JP;
Masaaki Kawabe, Ibaraki, JP;
Fuminori Kimura, Tokyo, JP;
Masahiro Amagasa, Ibaraki, JP;
Japan Vilene Company, Ltd., Tokyo, JP;
Abstract
A separator for an electric double layer capacitor, characterized in that a thickness of the entire separator is 25 μm or less, a layer of an ultrafine fibrous aggregate prepared by an electrostatic spinning process is contained, an average fiber diameter of ultrafine fibers constituting the ultrafine fibrous aggregate layer is 1 μm or less, and a maximum pore size of the ultrafine fibrous aggregate is not more than 3 times a mean flow pore size is disclosed.