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Patent Searching and Data


Title:
ANTENNA DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/012290
Kind Code:
A1
Abstract:
Provided is an antenna device capable of operating without providing an opening in an electroconductive body. This antenna device 1 is built into an electronic instrument 30 and communicates with an external instrument 40 by means of an electromagnetic signal, the antenna device comprising: an antenna coil 12 that is provided by winding a conducting wire in a two-dimensional form about an opening 12b, and that is inductively coupled to the external instrument (reader/writer) 40; and an electroconductive body 11 that is provided on an opposing surface of the antenna coil 12 opposing the external instrument 40 so as to be superposed on the antenna coil 12. The electroconductive body 11 has a slit 18 formed so that at least a portion thereof is superposed on the antenna coil 12.

Inventors:
ORIHARA, Katsuhisa (Gate City Osaki East Tower 8F, 1-11-2, Osaki, Shinagawa-k, Tokyo 32, 〒1410032, JP)
Application Number:
JP2017/023730
Publication Date:
January 18, 2018
Filing Date:
June 28, 2017
Export Citation:
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Assignee:
DEXERIALS CORPORATION (Gate City Osaki, East Tower 8F 1-11-2, Osaki, Shinagawa-k, Tokyo 32, 〒1410032, JP)
International Classes:
H01Q7/00; H01Q1/24; H01Q1/38; H04B5/02
Domestic Patent References:
WO2015115402A12015-08-06
Foreign References:
JP5696810B22015-04-08
JP2008131115A2008-06-05
JP2014206891A2014-10-30
JP2015144366A2015-08-06
JP2016111455A2016-06-20
JP2014011533A2014-01-20
JP2013038821A2013-02-21
Attorney, Agent or Firm:
KOIKE, Akira et al. (TORANOMON A&K IP BLDG, 5-13-7 Toranomon, Minato-k, Tokyo 01, 〒1050001, JP)
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