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:
Dec. 30, 2003
Filed:
Oct. 16, 2001
Idec Izumi Corporation, Osaka, JP;
Abstract
When pressing a pushbutton ( ) in this thin switch ( ), the pushbutton ( ) rotates at a constant stroke until a lower end of this pushbutton ( ) on the side of a permanent magnet ( ) comes into contact with a lower display panel ( ). Following this rotation, positional relation between the permanent magnet ( ) and a Hall element integrated circuit ( ) corresponding to this pushbutton ( ) changes and the Hall element integrated circuit ( ) detects change of a magnetic field by the permanent magnet ( ), whereby the pressing operation of the pushbutton ( ) is detected. When the pushing operation is canceled, the pushbutton ( ) is returned to the original state due to attractive force of the permanent magnet ( ) and a magnetic body ( ).