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:
Apr. 10, 2012
Filed:
Nov. 07, 2008
Applicants:
Hisashi Nishikawa, Shiga, JP;
Naoki Yoshikawa, Fukui, JP;
Inventors:
Hisashi Nishikawa, Shiga, JP;
Naoki Yoshikawa, Fukui, JP;
Assignee:
Panasonic Corporation, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01H 9/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
Regarding a switch used for various controls of a motor vehicle in particular and a switch device using the switch, it becomes possible to simplify the configuration and to perform reliable detection of trouble. A first detector is disposed on a surface opposing to a magnet fitted to an actuator, and a second detector is disposed thereunder. A controller detects magnetism of the magnet by using the first detector and the second detector. In case one of the detectors is out of order, it can also be detected from ON/OFF signal from the first detector and the second detector.