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:
Apr. 30, 1991
Filed:
Sep. 22, 1989
Applicant:
Inventors:
Assignee:
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Primary Examiner:
Int. Cl.
CPC ...
G01N / ; G01N / ;
U.S. Cl.
CPC ...
204416 ; 204419 ; 204435 ;
Abstract
Disclosed is a sensor device for detecting a specified chemical component of a solution. The sensor device includes an electrode for generating a potential corresponding to a concentration of a specified component of a solution, a reference electrode including a insulated-gate FET having a film insensitive to the component of the solution formed on the gate region, and an electrode for detecting a potential difference between the potential generating electrode and the reference electrode. The insensitive film included in the reference electrode contains a siloxane copolymer.