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| Number | Title | Issue Date |
| 7300742 | Data storage medium and method for the preparation thereof A data storage medium includes a substrate, a reflective metal layer, and a haze-prevention layer between the substrate and the reflective metal layer. The substrate includes an amorphous thermoplastic resin having a heat distortion temperature of at least about 140... | 11/27/2007 |
| 7279211 | Sputtering target containing zinc sulfide as major component, optical recording medium on which phase change optical disk protective film containing zinc sulfide as major component is formed by using the target, and method for manufacturing the sputtering target Provided is a sputtering target and an optical recording medium having formed thereon a phase change optical disc protective film having zinc sulfide as its principal component employing such a target, as well as the manufacturing method thereof, characterized in th... | 10/09/2007 |
| 5108846 | Protective layers of germanium ceramics The novel polycrystalline, unoriented or X-ray amorphous carbide, oxide and/or nitride ceramics which have the elemental composition I ##STR1## where M is at least one element from the group consisting of titanium, zirconium, hafnium, thorium, scandi... | 04/28/1992 |
| 5087340 | Method of making magneto-optical recording disk A magneto-optical recording disk comprises a transparent substrate on which a magneto-optical recording layer made of a rare earth-transition metal alloy having an uniaxial magnetic anisotropy is sandwiched by a pair of dielectric layers is characterized ... | 02/11/1992 |
| 4861656 | Optical recording medium An optical recording medium comprising a recording layer on a substrate is more durable when an intermediate layer of a composition comprising a rare earth element oxide, silicon oxide, and silicon nitride is formed between the substrate and the recording... | 08/29/1989 |
| 4861671 | Magneto-optic recording media with protective layer A protective layer for a magneto-optically active layer is formed of an outer impermeable layer and an inner layer that protects the active from the outer layer. The outer layer may be an oxide and the inner layer a non-oxide. The oxide and non-oxide laye... | 08/29/1989 |
| 4849304 | Optical recording medium An optical recording medium comprising a recording layer on a substrate and a protective layer formed adjacent to the upper and/or lower surface of the recording layer is more durable and corrosion resistant when the protective layer has a composition com... | 07/18/1989 |
| 4801499 | Optical recording medium A magneto-optic recording medium including a transparent substrate and a non-oxide dielectric layer formed thereon is provided. The dielectric layer includes a first dielectric material of the type which exhibits cracks running in a generally radial direc... | 01/31/1989 |
| 4775603 | Optical-magnetic recording medium An optical-magnetic recording medium utilizing a recording layer of an amorphous rare-earth-transition metal alloy so as to rely on the Kerr effect. An enhancing layer of ZnS and a fluoride of an alkaline-earth metal (preferably CaF2) is deposi... | 10/04/1988 |
