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:
Feb. 22, 2011
Filed:
Jul. 11, 2008
Kenshi Aihara, Fujiyoshida, JP;
Isao Miyashita, Fujiyoshida, JP;
Kenshi Aihara, Fujiyoshida, JP;
Isao Miyashita, Fujiyoshida, JP;
Citizen Electronics Co., Ltd., Yamanashi, JP;
Abstract
A sheet switch module includes a circuit board () provided with a fixed contact () thereon, a light source (), a movable contact () to face the fixed contact (), a sheet () to hold the movable contact () on the circuit board, a key top () disposed to face the movable contact and a light guiding plate () to guide light emitted from the light source () to the key top. The light-guiding plate () includes a light-receiving part () projecting toward an upper surface of the circuit board () and a light-guiding part (). The light-guiding plate () is positioned in a substantially horizontal state supported by the light-receiving part () on the upper surface of the circuit board ().