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. 03, 2015
Filed:
Feb. 20, 2013
Panasonic Corporation, Osaka, JP;
Hiroshi Ryonai, Osaka, JP;
Seiichi Minami, Osaka, JP;
Abstract
A touch panel includes an upper substrate having insulating property, an upper conductive layer on a lower surface of the upper substrate, an intermediate layer on a lower surface of the upper conductive layer, an upper electrode on a lower surface of the intermediate layer, a lower conductive layer facing the upper conductive layer with a predetermined gap interposed between the conductive layers, a lower electrode on an upper surface of the lower conductive layer, and a lower substrate on a lower surface of the lower conductive layer and having insulating property. The upper and lower electrodes contain 70 wt. % to 98 wt. % of conductive metal. The intermediate layer contains a resin and 40 wt. % to 90 wt. % of carbon and has a thickness ranging from 1 μm to 50 μm. The touch panel has resistance to environment and is applicable to a large size.