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. 10, 2006
Filed:
Jan. 06, 2003
Hideo Morimoto, Nara, JP;
Tomohiro Agaya, Nara, JP;
Hideo Morimoto, Nara, JP;
Tomohiro Agaya, Nara, JP;
Nitta Corporation, Osaka, JP;
Abstract
Capacitance element electrodes (Eto E) and a grounded reference electrode (E) are formed on a substrate (). A displacement electrode () that is Z-axially displaced in accordance with a Z-axial movement of a detective member () externally operated, is disposed so as to be opposed to the above electrodes (Eto E). The displacement electrode () cooperates with the reference electrode (E) and the capacitance element electrodes (Eto E) to form capacitance elements (Cto C), respectively. Each of the capacitance elements (Cto C) is connected to the capacitance element (C) in series in relation to an externally input signal. Changes in the capacitance values of the capacitance elements (Cto C) when the detective member () is moved, is detected by a signal processing circuit having hysteretic characteristics. Thereby, the displacement of the detective member () is detected.