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:
Nov. 27, 2001
Filed:
Jan. 17, 1997
Jae-young Kim, Kunpo, KR;
Samsung Electronics Co., Ltd., Suwon, KR;
Abstract
A magneto-optical recording layer having a double-layer structure of a first magnetic layer made of an amorphous alloy of a light rare earth-transition metal and a semi-metal, and a second magnetic layer made of an amorphous alloy of a heavy rare earth-transition metal, and a magneto-optical disk adopting the magneto-optical recording layer. In the magneto-optical recording layer, a p-d electron orbit coupling is induced between the transition metal and the semi-metal to reduce the magnetic moment of the amorphous alloy of light rare earth-transition metal without decreasing the magnetic moment of the light rare earth metal, thereby attaining a perpendicular magnetic anisotropy. As a result, a high density magneto-optical recording layer has a double-layer structure including a ferro-magnetic reproducing layer having an excellent magneto-optical characteristic and a ferro-magnetic recording layer having an improved recording stability by an increase of a coercive force, and the double-layer structure is formed on a magneto-optical disk.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile