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:
Sep. 14, 1999
Filed:
Jul. 16, 1997
Applicant:
Inventors:
Takao Fukuoka, Kyoto, JP;
Akio Okubo, Kyoto, JP;
Assignee:
Kyoto Daiichi Kagaku Co., Ltd., Kyoto, JP;
Primary Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
422 58 ; 422100 ;
Abstract
A device for assay of a liquid sample. The device comprises: a support composed of an organic macromolecule, the support having a surface divided into two areas located adjacent to each other; a divider in the surface, defining the border of both areas to separate a first area from a second area; a detection layer affixed to the first area and containing a reagent; and a water-swelling layer affixed to the second area, the water-swelling layer expanding by absorbing water.