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:
Jul. 22, 2003
Filed:
Aug. 06, 2001
Atsushi Saito, Tokyo, JP;
Yasufumi Naoi, Narashino, JP;
Seiko Precision Inc., , JP;
Abstract
A light illuminating type switch with a good click rate and having a desired click characteristic near to that of a single member of a metal dome. Fixed contacts are provided on a base sheet On an upper side of the base sheet a dome shaped movable contact capable of electrically connecting the fixed contacts on the base sheet by being elastically deformed is arranged. The surface of the dome shaped movable contact is attached with a flexible EL sheet E by using adhering agents and via an insulating member over a peripheral portion of the dome shaped movable contact The EL sheet E is formed with cut portions partially at positions along an outer peripheral edge of the dome shaped movable contact At least a pair of the cut portions are formed at symmetrical positions centering on the movable contact
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile