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. 09, 2021
Filed:
Jun. 23, 2017
Dexerials Corporation, Tokyo, JP;
Katsuhisa Orihara, Tochigi, JP;
DEXERIALS CORPORATION, Tokyo, JP;
Abstract
An antenna device incorporated in an electronic apparatus and communicating with an external device via an electromagnetic field signal, including: an antenna coil inductively coupled to the external device and provided by winding around a conducting wire in planar shape; a magnetic sheet arranged to overlap with the antenna coil mutually along the antenna coil by inserting the magnetic sheet into a coil opening provided at center side of the antenna coil; and a metallic cover formed with an opening near an end of the metallic cover and arranged at surface side of the antenna coil opposing to the external device, wherein the antenna coil is arranged to overlap with the metallic cover in a region between the opening and the end of the metallic cover at a backside surface of the metallic cover opposite to a surface of the metallic cover opposing to the external device.