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:
Oct. 04, 2011
Filed:
Dec. 27, 2007
Ichiro Sasada, Fukuoka, JP;
Toshikazu Takeda, Tokyo, JP;
Ichiro Sasada, Fukuoka, JP;
Toshikazu Takeda, Tokyo, JP;
Kyushu University, National University Corporation, Fukuoka, JP;
Nippon Steel Composite Co., Ltd., Tokyo, JP;
Abstract
It is an object of the present invention to provide a separate type magnetic shield apparatus which has high access performance to a magnetically shielded space, in which magnetic shielding is very effectively achieved. In the separate type magnetic shield apparatus, first and second conductorsandextending in the longitudinal axial line direction are provided on a curved magnetic shield outer side wallof a first magnetic shield side wall bodyA at up and down symmetrical positions relative to the longitudinal plane Hp passing through the longitudinal axial line of the cylindrical space S to cause current to flow therethrough; first and second conductorsandextending in the longitudinal axial line direction, on the curved magnetic shield outer side wallof the second magnetic shield side wall bodyB, at up and down symmetrical positions relative to the horizontal plane Hp passing through the longitudinal axial line of the cylindrical space S to cause current to flow therethrough; and magnetic fluxes H coming horizontally to the first magnetic shield side wall bodyA and to the second magnetic shield side wall bodyB are deflected up and down by means of magnetic fields produced around the first and second conductorsand, thereby preventing magnetic fluxes from flowing into the cylindrical space S.