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. 25, 2006
Filed:
Aug. 24, 2004
Hidehiko Ide, Fujikawaguchiko-machi, JP;
Isao Miyashita, Fujiyoshida, JP;
Hidehiko Ide, Fujikawaguchiko-machi, JP;
Isao Miyashita, Fujiyoshida, JP;
Citizen Electronics Co., Ltd., Yamanashi, JP;
Abstract
A keysheet module is provided which comprises: a one-sided printed circuit board having a plurality of wiring patterns formed on one side thereof; and contact switches, LEDs for illuminating a keypad, and electric elements such as resistors and capacitors, all provided on the one-sided printed circuit board; wherein an insulating layer is provided between predetermined, separate wiring patterns of the plurality of wiring patterns and a conductive film jumper is formed over the insulating layer to three-dimensionally connect the separate wiring patterns. With this arrangement, a degree of freedom of locating LEDs and electric elements is enhanced, improving a keypad illumination efficiency. The use of the conductive film jumper can reduce a thickness of the keysheet module.