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. 12, 1996
Filed:
Feb. 10, 1993
Applicant:
Inventors:
Naoki Katsurada, Ashigarakami, JP;
Sobei Wakabayashi, Fukui, JP;
Tomoko Hashimukai, Fukui, JP;
Yoshitaka Omura, Kanagawa, JP;
Assignee:
Terumo Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ; B01D / ; B01D / ;
U.S. Cl.
CPC ...
210496 ; 210435 ; 210446 ; 210483 ; 210503 ; 210506 ;
Abstract
A filter for removing leukocytes and thrombocytes from a solution containing blood components, such as CRC, comprises a filter material having a first surface serving as an inlet surface and a second surface serving as an outlet surface. The outlet surface has a positive zeta potential greater than that of the inlet surface in an electrolyte solution having a pH value of 5.0 to 7.0.