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. 20, 2009
Filed:
Feb. 11, 2008
Hideo Morimoto, Yamatokoriyama, JP;
Hideo Morimoto, Yamatokoriyama, JP;
Nitta Corporation, Osaka, JP;
Abstract
A force measuring apparatus includes first fixed electrodes disposed in one direction in one plane so as to be distant from each other; second fixed electrodes disposed in the one direction in a plane opposed to the one plane, so as to be distant from each other and opposed to the respective first fixed electrodes; and movable electrodes movable in the one direction. The apparatus further includes a force receiving portion to receive an external force and thereby move the movable electrodes in the one direction so as to change the overlapped area between each first fixed electrode and the corresponding movable electrode and the overlapped area between each second fixed electrode and the corresponding movable electrode. The apparatus measures the magnitude of the force applied to the force receiving portion based on the changes in the capacitance values of the capacitance elements.