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:
Jun. 08, 2004
Filed:
Apr. 18, 2002
Applicant:
Inventors:
Yuuko Kawaguchi, Ibaraki, JP;
Motoyoshi Murakami, Hirakata, JP;
Masahiro Birukawa, Hirakata, JP;
Tsutomu Shiratori, Tokyo, JP;
Yasuyuki Miyaoka, Yokohama, JP;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 1/100 ; G11B 5/66 ;
U.S. Cl.
CPC ...
G11B 1/100 ; G11B 5/66 ;
Abstract
By irradiating a light beam between recording tracks of the magneto-optical recording medium, the magnetic anisotropy of at least one layer selected from the group consisting of the domain wall displacement layer and the recording layer formed between the recording tracks can be made lower than that of said layers on the recording tracks, and a bias magnetic field is applied at least between recording tracks while a light beam is radiated. Because of this, initialization of a medium may be conducted simultaneously.