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. 05, 2002
Filed:
Feb. 11, 2000
Applicant:
Inventors:
Tatsuya Fukuda, Oita, JP;
Norio Toma, Oita, JP;
Assignee:
Asahi Medical Co., Ltd., , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 7/150 ;
U.S. Cl.
CPC ...
B01D 7/150 ;
Abstract
A leukocyte-removing filter medium for removing leukocytes from a leukocyte-containing fluid, wherein said filter medium has, at least on its surface, hydrophilic basic groups containing at least one nonionic hydrophilic portion and at least one basic portion, in which said hydrophilic portion(s) is located nearer to the end of the hydrophilic basic group than said basic portion(s) is.