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. 21, 1994
Filed:
Feb. 26, 1993
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A magneto-optical recording method is disclosed, by which a magnetic recording pattern is formed in an overwriting mode, utilizing demagnetizing field, by directing a light beam onto a perpendicularly magnetized film layer of a magneto-optical recording medium, wherein when recording is being carried out by the application of a light beam onto the perpendicularly magnetized film layer, on switching the direction of magnetization for recording from downward to upward or from upward to downward, when required, with respect to the surface of the magnetized film layer, a light beam application mode for a light-beam applied portion in the magnetized film layer to which the light beam has been applied, and a light beam application mode in a portion in the magnetized film layer immediately after the light-beam applied portion to which the light beam is yet to be applied, are changed.