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| Number | Title | Issue Date |
| 7235313 | Magneto-optical recording medium, method of manufacturing magneto-optical recording medium, method of recording on magneto-optical recording medium, and method of reproduction from magneto-optical recording medium A magneto-optical medium has a recording layer having a plurality of columns extending in a lamination direction, and a reproduction layer which is placed below the recording layer and which functions as a nucleus for the columns. ... | 06/26/2007 |
| 7054087 | Magnetic recording-reproducing apparatus A magnetic recording-reproducing apparatus has a magnetic recording medium having a nonmagnetic substrate, and a functional layer and a recording layer formed on the nonmagnetic substrate, the recording layer exhibiting a magnetic anisotropy energy density KuRL... | 05/30/2006 |
| 6649285 | Magneto-optical recording medium and manufacturing method therefor A magneto-optical recording medium includes a magnetic reproducing layer having an axis of easy magnetization in a direction perpendicular to its layer surface, a magnetic intermediate layer formed on the magnetic reproducing layer and having an axis of e... | 11/18/2003 |
| 5248565 | Optical-thermal magnetic storage medium An optico-thermal magnetic recording medium comprises a substrate, a first layer of a ternary amorphous alloy represented by Tbx (Fe1-y Coy)1-x or Dyx (Fe1-y Coy)1-x on axi... | 09/28/1993 |
| 5239534 | Multi-layer over write capable magnetooptical recording medium An over write capable multi-layer magnetooptical recording medium comprises a substrate on which is stacked a magnetic layer structure including first and second magnetic layers having perpendicular magnetic anisotropy serving as a recording layer and as ... | 08/24/1993 |
| 5204193 | Recording magnetooptical recording medium A Curie temperature (Tc) writing magnetooptical recording medium which uses a dual perpendicular magnetic layer is composed of a first layer having a low Curie point (TL) and a high coercive force (HH) and a second layer having a relatively high Curie poi... | 04/20/1993 |
| 5143798 | Magneto-optical recording medium having double magnetic layers including a light rare earth element and satisfying a specified condition involving the product of the thickness and magnetization saturation of said layers A magneto-optical recording medium including a first magnetic layer (having film thickness t1 and saturation magnetization Ms1) and a second magnetic layer (having film thickness t2 and saturation magnetization Ms2) which are respectively made from a rare... | 09/01/1992 |
| 5094925 | Opto-magnetic recording medium An opto-magnetic recording medium having a perpendicularly magnetized film of a dual layer structure comprising a first layer composed of a rare earth-transition metal amorphous thin alloy film and a second layer composed of a rare earth-transition metal ... | 03/10/1992 |
| 5069984 | Overwritable magnetooptical recording element including first and second magnetic layers, with one of which containing zirconium A multilayer, direct-overwrite, magnetooptic recording element comprises first and second layers of magnetic materials having different magnetic coercivities and Curie temperatures. According to the invention, one of the two magnetic layers is doped with ... | 12/03/1991 |
| 4753853 | Double-layered magnetooptical recording medium A double-layered magnetooptical recording medium consists of two exchange-coupled layers that permit perpendicular magnetization, one layer having a low Curie point and a high coercive force and the other layer having a high Curie point and a low coercive... | 06/28/1988 |
