Title:
非接触型情報記憶媒体
Document Type and Number:
Japanese Patent JP4333888
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To improve flexibility, directivity and gain and to attain improvement in convenience by providing an antenna part with a conductor part having a radio wave reflection and/or waveguide function, and making a substrate into film in the shape of thin plate having flexibility. SOLUTION: A substrate 11 is made into card-shaped film plate having flexibility and while using an ink having conductivity, an antenna 13 is directly printed on the surface of this film plate. Further, an antenna part 13a of the antenna 13 and a microchip 12 are electrically connected and the microchip 12 is fixed on the surface of the film plate. The antenna 13 constitutes so-called Yagi-Uda antenna by using the antenna part 13a, a reflector 13b and a waveguide 13c. Thus, the directivity/gain of a non-contact type information storage medium 10 is improved, a transmission/reception range between an R/W device and the non-contact type information storage medium 10 is extended and a range capable of reading/writing information can be expanded.
Inventors:
Masato Hayakawa
Tsutomu Ino
Tsutomu Ino
Application Number:
JP13406499A
Publication Date:
September 16, 2009
Filing Date:
May 14, 1999
Export Citation:
Assignee:
Toenec Co., Ltd.
International Classes:
G06K19/07; G06K19/077; H01Q1/40; H01Q19/30; H04B1/59; H04B5/02
Domestic Patent References:
| JP7271938A | ||||
| JP10329462A | ||||
| JP7321438A | ||||
| JP6176213A |
Attorney, Agent or Firm:
Yuichi Morita