Title:
CONCRETE SLEEPER
Document Type and Number:
Japanese Patent JP2010024718
Kind Code:
A
Abstract:
To provide a radio IC (integrated circuit) tag capable of accurately and surely writing information.
A concrete sleeper comprises a printed board 11 with a semiconductor integrated circuit arranged, and an antenna 12. Information recorded in the semiconductor integrated circuit is read by a reader. The printed board 11 and the antenna 12 are arranged inside, and the outer surface is covered with a resin member 14. A plurality of recesses or projections are formed on the outer surface of the resin member 14, and the directionality of the antenna 12 is identified by the recesses or projections.
Inventors:
ARAI SATOSHI
KANO YASUO
MASUDA TAKASHI
MATSUI TAKAYA
KANO YASUO
MASUDA TAKASHI
MATSUI TAKAYA
Application Number:
JP2008187449A
Publication Date:
February 04, 2010
Filing Date:
July 18, 2008
Export Citation:
Assignee:
ENGENIUS CORP
International Classes:
E01B3/28
Attorney, Agent or Firm:
Shinichi Abe
Yoshihiro Shimizu
Yuji Tsujida
Yoshihiro Shimizu
Yuji Tsujida