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:
Feb. 13, 1996
Filed:
Dec. 23, 1993
Applicant:
Inventor:
Ichiro Katsuie, Takasaki, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N / ; G01B / ;
U.S. Cl.
CPC ...
324452 ; 324671 ; 324716 ; 427 10 ;
Abstract
A sheet thickness measuring apparatus includes an electrostatic capacity measuring device for measuring the eletrostatic capacity of a sheet, a resistance measuring device for measuring a resistance value of the sheet, and a calculator for calculating a thickness of the sheet on the basis of the electrostatic capacity measured by the electrostatic capacity measuring device and the resistance value measured by the resistance measuring device.