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:
Aug. 24, 1993
Filed:
Feb. 28, 1991
Toshio Kazama, Nagaoka, JP;
Alps Electric Co., Ltd., Tokyo, JP;
Abstract
A magnetic head for a magneto-optical recording device for magnetically recording information onto a magnetic recording medium under the condition where the magnetic recording medium is heated by irradiation of a laser beam. A leakage magnetic field is effectively suppressed by a skin effect, and a magnetic field due to an eddy current is effectively summed up with a magnetic field generated from the core end, thereby increasing an intensity of a total magnetic field to be applied to the magnetic recording medium. Further, a distribution of the magnetic field intensity at the core end can be easily adjusted to stably and widely apply the magnetic field to the magnetic recording medium.