Title:
ANTENNA DEVICE, VIBRATION TYPE ANTENNA DEVICE AND COMMUNICATION APPARATUS
Document Type and Number:
Japanese Patent JP2015177493
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a magnetic coupling type antenna device of which the communication range is widened by improving directivity.SOLUTION: A magnetic coupling type antenna device 10 includes a plate-like magnetic substance 110, and a coil-like antenna 120 wound around the magnetic substance.
Inventors:
OTSUKI TAKASHI
TSUJI MASAAKI
ITO MASAHIKO
TSUJI MASAAKI
ITO MASAHIKO
Application Number:
JP2014054488A
Publication Date:
October 05, 2015
Filing Date:
March 18, 2014
Export Citation:
Assignee:
RICOH CO LTD
International Classes:
H01Q7/06; H01Q3/04; H01Q21/24
Domestic Patent References:
| JPH10126286A | 1998-05-15 | |||
| JP2012070164A | 2012-04-05 | |||
| JP2005224603A | 2005-08-25 | |||
| JP2012215953A | 2012-11-08 | |||
| JP2011022981A | 2011-02-03 | |||
| JP2008251283A | 2008-10-16 |
Attorney, Agent or Firm:
Chieko Tateno
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