Title:
【発明の名称】ハード磁性材料内に複合磁化パターンを形成するための方法および装置
Document Type and Number:
Japanese Patent JPH05502553
Kind Code:
A
Abstract:
A method and apparatus for producing complex magnetization patterns in a sheet of magnetic material. A fixture having top and bottom plates with a matching conductor pattern embedded in one surface of each plate. The conductor pattern covers substantially the entire surface of each plate. To magnetize the sheet of magnetic material, it is placed between the plates and a magnetizing current is applied to the conductors with a capacitor discharge magnetizer. The resulting sheet of magnetized material is useful as a magnetic deactivator for electromagnetic security articles.
Inventors:
Lee, jay kelly
Application Number:
JP51468991A
Publication Date:
April 28, 1993
Filing Date:
August 26, 1991
Export Citation:
Assignee:
Eastman Kodak Company
International Classes:
G08B13/24; H01F13/00; (IPC1-7): G08B13/24; H01F13/00
Attorney, Agent or Firm:
Kyozo Yuasa (6 people outside)