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:
Aug. 10, 1999
Filed:
Apr. 08, 1996
Yasushi Fujisaki, Saitama, JP;
Sigeru Tezuka, Saitama, JP;
Hikaru Tsuruta, Saitama, JP;
Osamu Seshimoto, Saitama, JP;
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Abstract
A dry analytical substantially flat film chip for use as an analytical element composed of a support, at least one reagent layer and a spreading layer laminated in this order. The chip is suitable for use as is as an analytical element for liquid samples. The chip further has means for restraining a liquid sample applied to its surface from spreading beyond a predetermined area of the surface. The restraining means may be a fused nonporous area of the spreading layer or may be a portion or area of the spreading layer which has been clogged with a hydrophobic or lipophilic material to render it nonporous. The inventive film chip, in addition, provides means for preventing fraying of the edges of the porous spreading layer as well as the prevention of the generation of fiber dust during cutting of the chip.