Composite magneto-optical information recording media
AssigneeDaicel Chemical Industries, Ltd.
InventorsTooru Kitaguchi, Mikio Yoneda
Life of this patent
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Abstract
A composite magneto-optical information recording medium comprising a substrate (1) and a composite magneto-optical recording layer deposited on said substrate. The composite magneto-optical recording layer comprises a magneto-optical layer (2), a metallic layer (3) and an electron transition layer (4) which exhibits transition of electrons in a wavelength range of a laser beam used for recording and/or regenerating information, the three layer being layered successively in this order so that said laser beam (L) impinges on the side of said magneto-optical layer (2).
Claims9
A composite magneto-optical information recording medium comprising a substrate and a composite magneto-optical recording layer deposited on said substrate, in which information is written in or read from said composite magneto-optical recording layer by a laser beam that impinges onto said substrate, said composite magneto-optical recording layer comprising a magneto-optical layer directly deposited on said substrate, a metallic layer having a thickness of less than 200 .ANG. deposited on said magneto-optical layer, and an electron transition layer deposited on said metallic layer and which exhibits an electron transition in the wavelength range of said laser beam from the visible zone to the infra-red zone.
Dependencies are inferred from the claim text.