Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
ANTENNA DEVICE AND POWER SUPPLY DEVICE
Document Type and Number:
WIPO Patent Application WO/2017/073239
Kind Code:
A1
Abstract:
Provided is a smaller antenna device with which erroneous operation is minimized and transfer efficiency is kept from declining. There is provided a coil antenna 3 having a coil conductor 2 wound around a winding axis and layered in the winding axis direction to form a space in the interior, and a circuit substrate 4 positioned inside the space formed by the coil conductor 2. The open surface of the coil antenna 3 is of polygonal shape when the coil antenna 3 is viewed from above in the winding axis direction of the coil conductor 2, and the circuit substrate 4 is positioned to follow along the diagonal lines of the polygon.

More Like This:
WO/1999/037034WRISTWATCH-TYPE COMMUNICATION DEVICE AND ANTENNA THEREFOR
JP2001092930READER/WRITER AND NON-CONTACT IC CARD SYSTEM
WO/2016/034568A MAGNETIC RESONANCE TRANSMIT AND/OR RECEIVE ANTENNA SYSTEM AND RADIOTHERAPY PLANNING COMPUTER PROGRAM PRODUCT
Inventors:
TANAKA MITSUYA (JP)
YAMAGUCHI SATOSHI (JP)
Application Number:
PCT/JP2016/079225
Publication Date:
May 04, 2017
Filing Date:
October 03, 2016
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
H01Q7/00; H01F38/14; H02J50/20
Foreign References:
JPH10302166A1998-11-13
JP2000133053A2000-05-12
JPH0964797A1997-03-07
JP2005077241A2005-03-24
JP2014049479A2014-03-17
Attorney, Agent or Firm:
KAWAMOTO, Takashi (JP)
Download PDF:
View/Download PDF      PDF Help



 
Previous Patent: POSITIVE ELECTRODE ACTIVE MATERIAL FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERIES, METHOD FOR PRODUC...

Next Patent: RELAY