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. 07, 1997
Filed:
Oct. 24, 1994
Applicant:
Inventors:
Michihiro Nakamura, Kurashiki, JP;
Satomi Matsui, Kurashiki, JP;
Keiko Oka, Kurashiki, JP;
Hitoshi Tsuruta, Kurashiki, JP;
Assignee:
Biosensor Laboratories Co., Ltd., Tokyo-to, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ; G01N / ; G01N / ;
U.S. Cl.
CPC ...
435-732 ; 204193 ; 204194 ; 204400 ; 204403 ; 422 8201 ; 422 8203 ; 435-72 ; 435-721 ; 435 29 ; 435174 ; 435176 ; 4352871 ; 4352872 ; 4352881 ; 435817 ; 436163 ; 436518 ; 436528 ; 436531 ; 436806 ;
Abstract
There is disclosed an apparatus for the determination of a trace amount of an analyte substance or organism. A substrate solution is brought into contact with a small diameter tube which has captured, at least on its inner surface, a trace amount of an analyte substance or organism. The trace amount has the ability to change the pH of the substrate solution. A pH change following a reaction of a substrate in the substrate solution in the small diameter tube is measured;