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. 22, 2016
Filed:
Dec. 17, 2009
Takayoshi Hosoya, Okayama, JP;
Shinya Inada, Okayama, JP;
Hideki Kamada, Okayama, JP;
Hiroyuki Kawai, Osaka, JP;
Takayoshi Hosoya, Okayama, JP;
Shinya Inada, Okayama, JP;
Hideki Kamada, Okayama, JP;
Hiroyuki Kawai, Osaka, JP;
KURARAY CO., LTD., Kurashiki-shi, JP;
Abstract
The present invention relates to a filter material including a sheet-like laminate which includes an ultrafine fiber aggregate layer formed of an aggregate of ultrafine fibers produced by an electrospinning method having an average fiber diameter of not less than 10 nm and not more than 1000 nm, and a base material formed of a nonwoven fabric or a woven fabric constituted from fibers having an average fiber diameter of 1 μm or more, said filter material satisfying all of a plurality of specific requirements, having a capability of collecting or separating μm-order microfine particles with a high accuracy and exhibiting a less pressure loss and a long filtering life, as well as a filter cartridge using the filter material.