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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.:

US 10829514 B1

PDFFull Text
Date of Patent:
Nov. 10, 2020

Filed:

Apr. 10, 2015

Virus removal membrane

Applicant:

Asahi Kasei Medical Co., Ltd., Tokyo, JP;

Inventors:

Ryo Hamamoto, Tokyo, JP;

Tomoko Hongo, Tokyo, JP;

Fujiharu Nagoya, Tokyo, JP;

Assignee:

ASAHI KASEI MEDICAL CO., LTD., Tokyo, JP;

Attorney:

Greenblum & Bernstein, P.L.C.

Primary Examiner:

Krishnan S Menon

Int. Cl.
CPC ...
C07K 1/34 (2006.01); B01D 71/78 (2006.01); B01D 69/02 (2006.01); B01D 69/08 (2006.01); B01D 67/00 (2006.01); B01D 69/12 (2006.01); B01D 71/02 (2006.01); B01D 71/06 (2006.01); C08J 7/16 (2006.01); C08J 9/00 (2006.01); C08J 9/14 (2006.01); C08J 9/36 (2006.01); C08K 5/12 (2006.01); B01D 69/06 (2006.01); B01D 71/34 (2006.01);
U.S. Cl.
CPC ...
C07K 1/34 (2013.01); B01D 67/0093 (2013.01); B01D 69/02 (2013.01); B01D 69/08 (2013.01); B01D 69/087 (2013.01); B01D 69/12 (2013.01); B01D 71/022 (2013.01); B01D 71/06 (2013.01); B01D 71/78 (2013.01); C08J 7/16 (2013.01); C08J 9/0023 (2013.01); C08J 9/142 (2013.01); C08J 9/36 (2013.01); C08K 5/12 (2013.01); B01D 69/06 (2013.01); B01D 71/34 (2013.01); B01D 2323/02 (2013.01); B01D 2323/08 (2013.01); B01D 2323/38 (2013.01); B01D 2325/022 (2013.01); B01D 2325/04 (2013.01); B01D 2325/20 (2013.01); B01D 2325/38 (2013.01); C08J 2203/12 (2013.01); C08J 2207/00 (2013.01); C08J 2327/16 (2013.01);
Abstract

A virus removal membrane is formed from a hydrophilized synthetic polymer, in which, when a solution containing gold colloids having a diameter of 20 nm is applied through a primary surface to the virus removal membrane to allow the virus removal membrane to capture the gold colloids for measurement of brightness in a cross section of the virus removal membrane, a value obtained by dividing a standard deviation of a value of an area of a spectrum of variation in the brightness by an average of the value of the area is 0.01 or more and 1.5 or less; and a thickness of a portion, where gold colloids having a diameter of 20 nm or more and 30 nm or less are captured, in the cross section of the virus removal membrane in a wet state is 10 μm or more and 30 μm or less.

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