Information storage medium, object of management and management system
AssigneeNitta Corporation
InventorsTakahiko Yoshida, Toshiharu Shimai, Masato Matsushita
Life of this patent
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Abstract
An information storage medium, a managed product and a management system in which the possible communication distance of an IC tag for wireless communication can be improved and the reading direction limitation can be reduced are provided. The information storage medium includes a wireless IC tag in which information is stored, a sheet body including a first spacer, an auxiliary antenna and a second spacer, and an elongated member formed of a conductive material. The elongated member is provided to be opposite to the wireless IC tag with respect to the sheet body. As the elongated member, for example, a part of a tool such as a body portion of a screwdriver can be used.
Claims10
An information storage medium comprising:
- a wireless IC tag in which information is stored;
- a sheet body including
- a first spacer having an arrangement surface on which the wireless IC tag is arranged,
- an auxiliary antenna provided on a surface opposite to the arrangement surface of the first spacer, having a hole, notch or gap, and
- a second spacer being opposite to the first spacer with respect to the auxiliary antenna;
- and
- an elongated member formed of a conductive material,
- the wireless IC tag being arranged on the arrangement surface without wire connection to the auxiliary antenna, and
- the elongated member being provided to be opposite to the wireless IC tag with respect to the sheet body, wherein the elongated member is a strip-shaped metal member or a rod-shaped metal member, and
- the elongated member including a portion having size of (λ/2)×n, wherein λ denotes a wavelength corresponding to a resonance frequency of the IC tag and n is an integer of 1 or more.
Dependencies are inferred from the claim text.