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:
Jun. 30, 2009
Filed:
Mar. 22, 2007
Applicants:
Eiichi Furukubo, Kadoma, JP;
Hisakazu Miyajima, Osaka, JP;
Inventors:
Eiichi Furukubo, Kadoma, JP;
Hisakazu Miyajima, Osaka, JP;
Assignee:
Panasonic Electric Works Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 27/26 (2006.01); G01P 15/125 (2006.01);
U.S. Cl.
CPC ...
Abstract
A capacitive sensor includes an error compensating unit that, in an arrangement that a part of a fixed electrode as an edge portion and a part of a movable electrode as an edge portion are opposed to each other keeping a gap in a direction of shift of a detecting unit, reduces a detection error of capacitance due to the shift of comb-tooth portions from each other in the detecting unit, by a change of capacitance according to variation of the gap caused by the shift.