Title:
RFID ANTENNA DEVICE
Document Type and Number:
Japanese Patent JP2018112882
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide an RFID antenna device in which a reading range of an RFID tag is suppressed.SOLUTION: An RFID antenna device comprises a plurality of antenna parts 20A to 20D having a square substrate 22 and a patch provided on the substrate 22, and an antenna housing box which houses the plurality of antenna parts 20A to 20D and in which a plurality of specimen containers are arranged on the upper side thereof. When a surface formed by the patch on the substrate is formed as an antenna forming surface and a cross section formed by cutting the antenna forming surface at a central axis is formed as an antenna cross section, the antenna parts 20A to 20D are all arranged so that positional relationship between the antenna housing box and the substrate on the antenna cross section is at a position where the substrate is slanted to either of side faces of the antenna housing box from a center of the antenna housing box and at a position where a first end 221a near a side face of the substrate is more remote from a bottom face 121 than a second end 221b of the substrate.SELECTED DRAWING: Figure 6
Inventors:
YOKOI KOJI
OSHIMA YUJI
YOSHIDA HIDETAKA
OSHIMA YUJI
YOSHIDA HIDETAKA
Application Number:
JP2017002728A
Publication Date:
July 19, 2018
Filing Date:
January 11, 2017
Export Citation:
Assignee:
MASPRO DENKO KK
International Classes:
H01Q7/00; G06K7/10; H01Q21/06
Domestic Patent References:
| JP2014142821A | 2014-08-07 |
Foreign References:
| US20150122886A1 | 2015-05-07 |
Attorney, Agent or Firm:
Nagoya International Patent Service Corporation