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. 19, 2016
Filed:
Apr. 22, 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, Hiroshima-shi, Hiroshima-ken, JP;
Abstract
The present invention relates to a magnetic antenna for information communication using a magnetic field component which is capable of satisfying both reduction in size and improvement in communication sensitivity. The magnetic antenna of the present invention is used for transmitting and receiving information using an electromagnetic induction method, and comprises a central core formed of a magnetic material and a non-magnetic material, a coil-shaped electrode material wound around the core, and an insulating layer formed on at least one outside surface of the core on which the coil-shaped electrode material is provided, in which the magnetic material is separated into two or more parts through the non-magnetic material when viewed in a section of the core which is perpendicular to a magnetic flux passing therethrough.