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. 06, 2021
Filed:
May. 22, 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 so conducting wires opposing in width direction via an opening will be close together; and a sheet-like conductor at a surface of the antenna coil opposite a surface of the antenna coil opposing the external device, wherein the coil is divided into two parts, i.e. one side part wherein the conducting wire is wound around in one direction and other side part wound in other direction, via a center line longitudinally traversing the opening, and the conductor is configured with a conductor side opening overlapped only with the other side part of the antenna coil, and a slit formed between the conductor side opening and any outer edge of the sheet-like conductor.