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:
Oct. 29, 2002
Filed:
Oct. 05, 2000
Applicant:
Inventors:
Toshihisa Ito, Saitama, JP;
Takaki Arai, Saitama, JP;
Kenichiro Yazawa, Saitama, JP;
Osamu Seshimoto, Saitama, JP;
Assignee:
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D 6/114 ; B01D 6/118 ; B01D 7/104 ;
U.S. Cl.
CPC ...
B01D 6/114 ; B01D 6/118 ; B01D 7/104 ;
Abstract
A method for preparing a plasma or serum sample from a whole blood sample, by contacting a glass fiber filter which contains calcium, sodium or potassium components with an aqueous solution of an organic acid or a mineral acid to elute the calcium, sodium and potassium components in the glass fiber filter into the aqueous solution, separating the aqueous solution from the filter and washing the glass fiber filter with water to remove any residual aqueous solution adhered thereto and then filtering a whole blood sample through the thus treated fiber filter.