ANTENNA CORE AND METHOD FOR MANUFACTURING THE SAME, AND ANTENNA AND DETECTION SYSTEM USING THE SAME

Title:

ANTENNA CORE AND METHOD FOR MANUFACTURING THE SAME, AND ANTENNA AND DETECTION SYSTEM USING THE SAME

Document Type and Number:

WIPO Patent Application WO/2010/073577

Kind Code:

A1

Abstract:

An antenna core is provided with a laminate having a plurality of thin strips of Co-based amorphous magnetic alloy, the ratio of the length of the long axis of said thin strips with respect to the length of the short axis being greater than 1. At least 60% of the thin strips (1) of Co-based amorphous magnetic alloy from this plurality of thin strips of Co-based amorphous magnetic alloy, in terms of the number of strips as a percentage, have a line-shaped mark (2A) formed along the long axis on at least one surface thereof. The antenna is provided with an antenna core and a winding that is wound along the long axis thereof.

Inventors:

SAITO TADAO (JP)
YAMADA KATSUHIKO (JP)
SAKAI KAZUMI (JP)

Application Number:

PCT/JP2009/007045

Publication Date:

July 01, 2010

Filing Date:

December 21, 2009

Export Citation:

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Assignee:

TOSHIBA KK (JP)
TOSHIBA MATERIALS CO LTD (JP)
SAITO TADAO (JP)
YAMADA KATSUHIKO (JP)
SAKAI KAZUMI (JP)

International Classes:

H01Q7/08; H01F1/153; H01F3/04; H01F41/02

Domestic Patent References:

WO2005041224A1

2005-05-06

Foreign References:

JP2000284027A	2000-10-13
JP2000160897A	2000-06-13
JP2003283231A	2003-10-03
JP2007329143A	2007-12-20
JP2004119403A	2004-04-15

Other References: