Matches 1 - 50 out of 335 1 2 3 4 5 6 7 >
Match Document Document Title
6912148 Magnetic semiconductor memory and the reading method using spin-polarized electron beam  
A system for writing data to and reading data from a magnetic semiconductor memory utilizing a spin polarized electron beam. The magnetic semiconductor memory comprises a plurality of storage...
6567331 Avalanche breakdown memory devices and method of using the same  
A reverse bias voltage in combination with selective illumination can selectively write data into optical memory. The writing process can be completed quickly since parallel writing of data may be...
6455174 Magnetic recording medium, recording and reproducing head, and magnetic recording and reproducing method  
A magnetic recording medium comprises, on a substrate, a recording auxiliary layer, a recording holding layer, recording control layer, and a recording layer. The recording layer is constructed by...
6436524 Magneto-optical recording medium  
When recording using magnetic field modulation recording, the magneto-optical recording medium which is disclosed is capable of satisfactory recording with a low magnetic field. This recording...
6403148 Magnetooptical recording medium on which high-density information can be recorded and method of reproducing the recorded information  
A magnetooptical recording medium includes a first magnetic layer, a second magnetic layer whose Curie temperature is lower than that of the first magnetic laye, and a third magnetic layer,...
6139980 Reading method of reading information from a recording medium and medium used therefor  
An information recording medium and a reading method thereof for realizing high density recording and recording/reading a direction of magnetization at minute bit length and bit width, which...
6139949 Magneto optical recording medium  
A magneto-optical recording medium in which information can be overwritten by a magnetic field modulation method, is provided with a magnetic thin film satisfying an inequality t×M s <5...
6096444 Magneto-optical recording medium capable of double mask readout  
A magneto-optical recording medium of a three-layered structure (consisting of a readout layer, an intermediate layer, and a recording layer), capable of double-mask magnetically-induced...
6077585 Optical recording medium and method of preparing same  
An optical recording medium having at least one aluminum nitride and silicon nitride composite dielectric layer is provided. The amount of aluminum nitride in the dielectric layer, x, is more than...
6001467 Magneto-optic memory medium  
A magneto-optic memory medium comprising a dielectric film, a magneto-optic memory film, a dielectric film and a reflective film superposed in layers on a light trnasmitting substrate, the...
5958575 Magneto-optical recording medium  
A magneto-optical recording medium is disclosed in which magnetic layer has a multi-layer structure consisting of an artificial lattice film constituted by a Co layer and a Pt layer and/or a Pd...
5940314 Ultra-high density memory device  
A ultra-high density memory device utilizing a photoinductive ferromagnetic thin film. A photoinductive ferromagnetic thin film is formed on a GaAs substrate, and a tip is arranged so as to face...
5922177 Magneto-optical recording medium and producing method thereof  
A method to produce a magneto-optical recording medium which includes a readout layer having in-plane magnetization at room temperature and in which a transition occurs from in-plane magnetization...
5821004 Magneto-optical recording medium and recording and reading out process using the same  
A magneto-optical recording medium having a recording layer which has a first magnetic film, a second magnetic film and a third magnetic film in this order from a laser beam incident side, in which...
5814400 Magneto-optical recording medium and method  
A magneto-optical recording medium comprises in combination: a magneto-optical recording layer capable of writing or erasing information by a laser beam and an external magnetic field and of...
5783320 Magneto-optical recording medium and process for producing the same  
Disclosed is a magneto-optical recording medium which comprises a transparent substrate and, provided on the substrate, a magneto-optical recording film comprising a perpendicular magnetic film...
5726964 Scanning head including a magneto-optical element and scanning device including the scanning head  
Scanning head including a magneto-optical element and scanning device including the scanning head. A scanning head having a head face (1) comprises flux-guiding elements (3a, 3b) and a...
5700567 Magneto-optical recording medium  
In a magneto-optical recording medium comprising a first dielectric layer, a recording layer, a second dielectric layer, and a metal reflective layer stacked on a substrate, the second dielectric...
5681633 Magneto optical disc, apparatus for reproducing the same and method of reproducing the same  
A magneto optical disc, is provided with: a record layer to which information is recorded in a perpendicular magnetization condition; a switch layer, which perpendicular magnetic anisotropy is...
5679474 Overwritable optomagnetic recording method and medium having a layer with curie temperature which varies in the thickness direction  
A magneto-optical recording medium with wide operating margins is disclosed. The magneto-optical recording medium includes a vertical magnetic films of exchange-coupled liminated structure composed...
5679455 Magneto-optic recording medium and apparatus  
This invention relates to a multi-layer magneto-optic recording medium having an information recording layer and an initializing layer that can be overwritten by light modulation, and in which...
RE35629 Magneto-optical memory element  
A magneto-optical memory element has a multi-layer construction in the order from a side first receiving light from a light-source which includes a first transparent dielectric film, a rare earth...
5667862 Magneto-optical disk  
A magneto-optical disk having a four-layer structure formed of a first protective dielectric layer, a recording magnetic layer, a second protective dielectric layer and a reflective metal layer is...
5660929 Perpendicular magnetic recording medium and method of producing same  
A perpendicular magnetic recording medium is fabricated based on R 21 -60 (Fe 1 -y Co y ) z M 0 -10 wherein z is balance and at least 70 at % of R is Nd and/or Pr, the balance of R being one or...
5648163 Magneto-optic recording medium having magneto-optic film layers separated by yttrium oxide  
A magneto-optic recording medium including a transparent substrate and a magneto-optic stack provided thereon. The stack includes a plurality of magneto-optic film layers less than 10 nm thick....
5645911 Over-writable method of magnetooptical recording  
An over-writable method of magnetooptical recording using a magnetooptical recording medium provides a high C/N ratio in a reproduction mode, permits reduction of the intensity of the initial...
5643650 Magneto-optical recording medium  
The recording sensitivity can be improved of a magneto-optical recording medium having a laminar structure consisting of a first dielectric layer, a recording layer, a second dielectric layer and...
5640374 Magneto-optical recording medium having intermediate layer of in-plane magnetization and method of reproducing from the medium  
A recording layer having a recording magnetic domain for recording thereon information is formed. A readout layer for reading the information by the application of a light beam is formed on the...
5631096 Magneto optical memory device  
A magneto-optical memory device is provided with a base whereon a first magnetic film which exhibits in-plane magnetization at room temperature and exhibits perpendicular magnetization at above...
5620767 Light reflecting and heat dissipating material and optical information recording medium using the same  
A light reflecting and heat dissipating material which is capable of reflecting light and dissipating heat transmitted thereto from a layer in contact with or adjacent to the material to cool the...
5604046 Magneto-optical recording medium and a method using the same  
This specification discloses a magneto-optical recording medium in which on the opposite side of a second magnetic layer having a relatively low curie temperature and a relatively great coercive...
5603814 Magneto-optical disk  
A method of making a magneto-optical disk. A first AlGeN dielectric film is formed by reactive sputtering on a substrate. Two targets, one of aluminum and one of germanium, are used in the...
5599619 Write once magneto-optic media and system  
An optical data storage medium is comprised of a data layer and a reference layer deposited onto a substrate. The data layer material is comprised of a transition metal rich rare earth-transition...
5585200 Over write capable magnetooptical recording medium  
An overwritable method of magnetooptical recording uses an over write capable magnetooptical recording medium that comprises a substrate and a magnetic layer. The magnetic layer is stacked on the...
5577020 Magneto-optical disc with intermediate film layer between a recording film and a dielectric film  
A magneto-optical disc is fabricated by forming a first dielectric film, a recording film of a rare earth element-transition element alloy, and a second dielectric film on a transparent substrate...
5565278 Magneto-optical recording medium  
A magneto-optical recording medium includes a magneto-optical layer, a reflection layer and an inorganic dielectric layer interposed therebetween. The dielectric layer is extremely thin so that it...
5563852 Magneto-optical recording medium having a readout layer with varying composition and curie temperature  
A magneto-optical recording medium includes a readout layer has in-plane magnetization at room temperature and in which a transition occurs from in-plane magnetization to perpendicular...
5554451 Optical data recording medium  
An optical data recording medium of the present invention includes: a substrate; a reflective material layer formed of light-reflective material, the reflective material layer being provided over...
5554436 Magneto-optical recording medium  
A magneto-optical recording medium is composed of first through fourth magnetic layers laminated in this order in such a way that an exchange coupling exists between any adjacent layers of the...
5547773 Magnetooptic recording medium  
A magnetooptic recording medium is composed of a transparent substrate, first and second magnetic layers and a reflecting layer. The first magnetic layer is formed on the transparent substrate and...
5536589 Magneto-optical recording medium  
A magneto-optical recording medium on which rewriting is possible is composed of a substrate and a recording layer exhibiting perpendicular anisotropy formed thereon. The recording layer consists...
5536570 Overwrite capable magneto-optical recording medium having three magneto-optic layers  
A magneto-optical recording medium capable of overwriting by light modulation comprises a substrate, a first magnetic layer having a curie point T 1 and a coercive force H 1 , a second magnetic...
5534360 Amorphous uranium alloy and use thereof  
An amorphous alloy containing uranium and a member selected from the group of N, P, As, Sb, Bi, S, Se, Te, Po and mixtures thereof; and use thereof for storage medium, light modulator or optical...
5532984 High resolution read-only magneto-optical disk and method and apparatus for reproducing information therefrom  
A read-only magneto-optical disk comprises at least a substrate and a magnetic layer built up thereon. The magnetic layer has a track with a second micro region α 1 (corresponding to a pit or...
5529854 Magneto-optic recording systems  
A magnetic recording film and a magneto-optic recording system utilizing films. The film includes light and heavy rare earth elements and transition metal elements. The system can include...
5514468 Magneto-optical recording medium  
A magneto-optical recording medium having a layered structure consisting of a first dielectric layer, magnetic recording layer, second dielectric layer and reflecting layer successively formed on a...
5512364 Magneto-optical recording medium  
In the magneto-optical recording medium with a transparent substrate, a film of dielectric indium oxide, tin oxide or metallic Ti is interposed between the substrate and the recording layer, to...
5503924 Exchange-coupled magnetooptical recording medium with first layer having smaller vertical orientation saturation magnetization than in-plane orientation saturation magnetization of second layer  
An overwritable magneto-optical recording medium is disclosed. The recording medium comprises a first magnetic layer exhibiting vertical magnetic anisotropy and a second magnetic layer having a...
5488604 Magneto-optical disk having zero kerr rotation angle at room temperature  
A magneto optical disc is provided with: a substrate having a disc shape; and a ferrimagnetic layer formed on the substrate for recording information as a magnetization condition therein, the...
5487046 Magneto-optical recording medium having two magnetic layers with the same curie temperature  
A magneto-optical recording method for recording information in an overwrite mode in a magneto-optical recording medium by the application of a laser beam is disclosed. The magneto-optical...
Matches 1 - 50 out of 335 1 2 3 4 5 6 7 >