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:
Mar. 02, 2010
Filed:
Jan. 15, 2007
Yosuke Matsukawa, Kyoto, JP;
Shuzo Okumura, Kyoto, JP;
Ryomei Omote, Kyoto, JP;
Nissha Printing Co., Ltd., Kyoto-Shi, Kyoto, JP;
Abstract
A capacitance type light-emitting switch and a light-emitting switch element are provided that operate properly by preventing failure in entry and for which a small number of parts are used. A light-emitting switchhas a light-emitting switch elementand a control element. A light-emitting switch elementhas a panelmade of transparent materials, a decorated layerarranged on at least one side of the panel, a light guide platearranged on the back sides of the panel and the decorated layer, a point light sourceor a line light source arranged on the side of the light guide plate, and a reflective layerthat is made of an opaque metal film of less than 1Ω/cmof surface resistance measured by the four-point probe array measurement method, mounted on the back side of the light guide plate, and is formed to have an electrode unitand a conductive unitconnected to the electrode unit. The control element, which is connected to the electrode unitthrough the conductive unit, switches a circuit/circuits for an external loading device, depending on the change in the capacitance of the electrode unit.