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:
Mar. 20, 2007
Filed:
Jun. 25, 2004
Applicant:
Tadashi Yasunaga, Odawara, JP;
Inventor:
Tadashi Yasunaga, Odawara, JP;
Assignee:
Fuji Photo Film Co., Ltd., Kanagawa-ken, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11B 5/86 (2006.01);
U.S. Cl.
CPC ...
Abstract
A patterned master carrier for magnetic transfer is used to transfer a magnetization pattern, which does not cause a problem such as an error attributable to a subpulse upon signal reproduction, to a slave medium. A signal pattern on a surface of a patterned master carrier for the magnetic transfer includes signal areas and no-signal areas, and the signal area is provided with an actual signal pattern and a dummy signal pattern adjacent to the no-signal area. Therefore, the actual signal pattern is not adjacent to the no-signal area.