The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 09, 2013
Filed:
May. 12, 2009
Jun Koujima, Hiroshima-ken, JP;
Tetsuya Kimura, Hiroshima-ken, JP;
Takanori Doi, Hiroshima-ken, JP;
Yoshiro Sato, Tokyo, JP;
Jun Koujima, Hiroshima-ken, JP;
Tetsuya Kimura, Hiroshima-ken, JP;
Takanori Doi, Hiroshima-ken, JP;
Yoshiro Sato, Tokyo, JP;
Toda Kogyo Corporation, Otake-shi, Hiroshima-ken, JP;
Abstract
A composite magnetic antenna for information communication utilizes a magnetic field component as well as a composite RF tag using the composite magnetic antenna, which can be embedded in metals while maintaining a sufficient communication sensitivity unlike conventional RF tags which are unusable in the metal embedding applications. The composite RF tag for transmitting and receiving information using an electromagnetic induction method includes a magnetic antenna on which an IC is mounted, and an insulating material and a metal material or a conductive material which are formed around the magnetic antenna. The magnetic antenna includes a central core formed of a magnetic material, and an electrode material formed into a coil around the central core. The insulating material is formed around the magnetic antenna except for one longitudinal end of the coil of the magnetic antenna. The metal material or the conductive material is formed on an outside of the insulating material.