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:
Feb. 20, 2007
Filed:
Dec. 08, 2004
Ryoichi Mukai, Kawasaki, JP;
Ryoichi Mukai, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
First magnetic crystalline grains are located at spaced positions on the surface of a base layer in a polycrystalline structure film. Magnetic interaction can reliably be prevented between the adjacent first magnetic crystalline grains. An amorphous material or a non-magnetic material covers over the first magnetic crystalline grains. An orientation controlling layer covering over the first magnetic crystalline grains and the amorphous or non-magnetic material on the base layer. Second magnetic crystalline grains are located at spaced locations on the surface of the orientation controlling layer. The orientation controlling layer serves to set the orientation in a predetermined direction in the second magnetic crystalline grains. Since the orientation of the magnetic crystalline grains can be aligned in a predetermined direction, the magnetic field of a sufficient intensity can be leaked out of the polycrystalline structure film.