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8379470 Semiconductor memory devices, controllers, and semiconductor memory systems  
A semiconductor memory system includes a controller and a memory device that are optical-interconnected. The controller includes a control logic configured to generate a control signal for...
8270198 Nonvolatile optical memory element, memory device, and reading method thereof  
A nonvolatile optical memory element in which a ferromagnetic body is provided on a semiconductor causes such a problem that in a case where magnetization of the ferromagnetic body is read by...
8154957 Magneto-optical device with an optically induced magnetization  
A magneto-optical device (MOD) with optically induced magnetization for use in magnetic field sensors as a magnetic element pinning a magnetization in a preferred direction of a ferromagnetic...
8040712 Information memory device and memory medium  
An information memory device using an electromagnetic-wave resonance phenomenon is provided to achieve both high density and long-period storage of stored data. Memory cells are...
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...
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...
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,...
6261707 Magneto-optical recording medium and recording and reproducing method and optical head designed for the magneto-optical recording medium  
A magneto-optical recording medium is composed of a base which has a property that a light can be transmitted therethrough, a readout layer formed on the base, which has in-plane magnetization at...
6153318 Layered material having properties that are variable by an applied electric field  
A composition of materials that is ferromagnetic and whose properties may be varied by means of an applied electric field and has at least a first and second layer. The first layer may be a...
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×Ms <5 μmemu/cc...
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...
6027825 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 layer, and a third magnetic layer,...
6020079 Magneto-optical recording medium and reproducing method for information recorded on the medium  
A magneto-optical recording medium capable of performing magnetically induced super resolution reproduction by perfectly masking a mark adjacent to a mark to be reproduced. The magneto-optical...
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...
5955191 Magneto-optical recording medium and a reproducing method using such a medium  
A super-resolution magneto-optical recording medium has a reproducing layer, an in-plane magnetization layer and a recording layer. The reproducing layer and the recording layer are...
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...
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...
5814418 Magneto-optical recording medium and method for reading out information from the same  
In one embodiment, the magneto-optical recording medium of the present invention has a recording layer structure including at least a readout magnetic film, a control magnetic film, and a...
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...
5723227 Magneto-optical recording medium and reproducing method for information recorded on the medium  
A magneto-optical recording medium capable of performing magnetically induced super resolution reproduction by perfectly masking a mark adjacent to a mark to be reproduced. The magneto-optical...
5707727 Magneto-optical recording medium  
A magneto-optical recording medium has a recording layer whereon information is magneto-optically recorded. A readout layer is provided on the recording layer. The readout layer has a compensating...
5706259 Magneto-optical recording medium for magnetically induced super resolution  
In a magneto-optical recording medium for super resolution reproduction, a recording layer having a Curie temperature of 300° C. or higher is used. An inhibition force for inhibiting movement of 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...
5665467 Magneto-optical recording medium  
A magneto-optical recording medium includes a first magnetic layer, a second magnetic layer and a third magnetic layer respectively made of rare-earth-transition metal alloys which are laminated...
5662988 Magneto-optical recording medium  
The magneto-optical recording medium is provided with a readout layer which shows the in-plane magnetization and which changes from the in-plane magnetization to the vertical magnetization when...
5660929 Perpendicular magnetic recording medium and method of producing same  
A perpendicular magnetic recording medium is fabricated based on R21-60 (Fe1-y Coy)z M0-10 wherein z is balance and at least 70 at % of R is Nd and/or Pr, the balance of R being one or more of...
5656385 Magnetic recording medium and information recording-reproduction method using the same  
A magnetic recording medium having a recording layer made up of a ferrimagnetic material whose compensation temperature is included within room temperatures and an information...
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...
5637411 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...
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...
5627777 Magneto-optical recording medium  
A magneto-optical recording medium includes a transparent substrate, a magnetic reproducing layer laminated on the transparent substrate and having an easy direction of magnetization perpendicular...
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...

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