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:
Nov. 13, 1990
Filed:
Nov. 23, 1988
Applicant:
Inventors:
Assignee:
Seiko Instruments Inc., , JP;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
2041531 ; 204404 ; 20415311 ; 250306 ; 250307 ;
Abstract
Apparatus and method for tunnel current measurement observed simultaneously with electrochemical measurement using an electrochemical cell. The electrochemical cell holds a tip, a counter electrode, a reference electrode and a sample in a solution. In the electrochemical cell, a tunnel current flowing between a sample and the tip is detected while controlling the electrode potential of the sample in a solution for electrochemical measurement. The detected tunnel current is represented as the surface image of the sample during electrochemical reaction.