Matches 101 - 150 out of 554 < 1 2 3 4 5 6 7 8 9 10 11 12 >
Match Document Document Title
6735165 Rewritable optical information medium  
A description is given of a disc-shaped rewritable optical information medium having an IPIM stack ( 2 ) comprising a phase-change recording layer ( 4 ) sandwiched between two dielectric layers (...
RE38501 Magnetooptical recording medium and information recording and reproducing methods using the recording medium  
A method of recording information on and reproducing information from a magnetooptical recording medium which includes first and second magnetic layers. The method includes the step of projecting a...
6714510 Information recording medium including layer of uniform thickness and reproducing device thereof  
An information recording medium includes a substrate, and one or a plurality of layers formed on the substrate, wherein at least one of the layers is formed by mixing a base material and a hard...
6706358 Storage disk comprising depressions and /or raised features  
A data storage disk may include depressions or raised features, which may be filled and/or polished with various materials.
6706847 Copolycarbonate compositions, and related articles and processes  
A thermoplastic composition is described, based on a copolycarbonate which includes at least two structural units. Structure I is usually a conventional carbonate based on bisphenol A, while...
6707787 Optical recording medium  
An optical recording medium capable of improving uniformity of thickness of a protective film and suppressing warping. The medium is configured to include a substrate, an optical recording film...
6700845 Multi-layer optical recording medium and method and apparatus for reproducing optical data  
An optical disc having a protection layer for protecting a recording layer located farther from a substrate and having a first recording layer and a second recording layer stacked on one side of...
6697324 Optical data recording medium  
This invention is an optical data recording medium having a substrate protective film for effectively suppressing deformation (warpage) associated with change in environmental humidity. The optical...
6683846 Information recording disc having an anti-reflection layer and information recording/reproducing apparatus  
An anti-reflection coating layer is formed on the surface portion of a recording medium. This enables to obtain a margin for the air gap thickness change when recording/reproducing an information...
6680899 Optical information medium  
An optical information medium comprising a supporting substrate, an information recording area on the supporting substrate, and a light-transmitting layer covering at least the information...
6667952 Optical storage medium having a specific light transmitting layer for small laser beam and high linear velocity  
In an optical information medium comprising a supporting substrate, an information recording layer thereon, and a light-transmitting layer wherein a recording/reading laser beam enters the...
6636476 Optical recording medium with a substrate of two different resin layers  
An optical disc includes a substrate, and a recording layer and transparent layer formed in this order on the substrate. A light is incident from the transparent layer to write and/or read an...
6625107 Magneto-optical recording medium having lubrication on both sides  
A magneto-optical recording medium which is capable of improving the floating stability and the travelling stability of an optical head of a slider type, by forming a lubricating protective layer...
6623792 Method for producing optical recording medium  
This invention provides a method for producing a CD-R optical recording medium. A first stack at a first stage is created by forming on a substrate a recording layer containing an organic dyestuff...
6621787 Optical storage medium having protective layer thicker than wavelength of useable light source  
An optical data storage system writes or reads information with respect to an optical storage medium using an optical pickup including a solid immersion optical system or a solid immersion lens for...
6613396 Optical disc and method for manufacturing same  
An optical disc and its manufacturing method in which humps may be prohibited from being formed on an outer rim area of the disc to assure optimum surface properties of a light transmitting layer...
6607869 Optical information recording medium and method of manufacturing the same  
An optical information recording medium having a recording layer for inducing a reversible phase change by irradiation with energy beam. The recording layer contains Te, Ge, Sb, and N, and the...
6606293 Optical information recording medium and methods for recording, reading, and erasing information thereupon  
There is disclosed an optical information recording medium having phase-change recording films whose the transmittance can be made substantially uniform irrespective of the presence or absence of...
6599602 Polycarbonate articles and adhesive composition therefor  
An article is disclosed that includes a) a first polycarbonate substrate; b) a second polycarbonate substrate; and c) an adhesive composition disposed between the first polycarbonate substrate and...
6599385 Manufacturing method of a multi-layer optical information recording carrier  
A manufacturing method of a multi-layer optical information record carrier, which has a plurality of layers of reflecting surfaces with pits for recording information. According to the method, a...
6574180 Multilayer optical disk and method of initializing the same  
Initialization nonuniformity due to interference of light which occurs during an initialization process is reduced without causing degradation in the characteristic of signals recorded/reproduced...
6572021 Card-shaped data carrier and method for producing the same  
The invention relates to a card-shaped data carrier having a printed layer ( 6 ) on a carrier layer ( 2 ) and a transparent film ( 1 ) with a thermoreversible color layer ( 4 ) on said printed...
6563782 INFORMATION RECORDING MEDIUM HAVING DOUBLE-LAYER STRUCTURE, AND INFORMATION REPRODUCING APPARATUS AND INFORMATION RECORDING AND REPRODUCING APPARATUS UTILIZING INFORMATION RECORDING MEDIUM HAVING DOUBLE-LAYER STRUCTURE  
An information recording medium comprises a double-layer structure comprised of a light transmitting layer for transmitting light and a light reflecting layer for reflecting light, The light...
6538978 Multi-layer optical record carrier not requiring spherical aberration correction  
An optical information storage system has a multi-recording-layer record carrier and a scanner device for the carrier. The scanner produces a radiation beam which is compensated for spherical...
6538961 Apparatus and method for recording an optical disc identification code  
This invention relates to an optical disc recording apparatus, an optical disc recording method, and an optical disc, and the present invention is applied to, for example, apparatus for recording...
6534142 Label for non-circular optical discs  
A label for an optical disc having a non-circular perimeter includes a sheet having a non-circular having a non-circular perimeter and a central aperture disposed in a sheet which has a perimeter...
6524418 Method of production of multilayer optical recording medium  
A method of production of a multilayer optical recording medium capable of avoiding difficulties in separating a stamper and forming a semi-transparent film on a thin flexible film and a production...
6510126 Optical disc having textured structure, and a method of manufacturing the optical disc  
An optical disc for an optical near-field recording having a surface with a textured structure formed with a plurality of bumps and craters, and a method of manufacturing the optical disc. An...
6506543 Method of photolithography using super-resolution near-field structure  
A method of photolithography using super-resolution near-field structure. A super-resolution near-field structure is formed on a semiconductor chip comprising a substrate and a photoresist layer...
6507559 Optical recording medium having light transparent cover layer smaller in outer diameter than substrate  
An optical recording medium is an optical disk formed by bonding a substrate to a light transparent cover layer smaller in thickness than the substrate, and the optical disk includes one or more...
6496450 Optical recording/reproducing apparatus, optical rotating recording medium, and method of designing optical recording/reproducing apparatus  
An optical recording/reproducing apparatus accessing a recording layer of an optical rotating recording medium using an accessing means positioned a predetermined gap away from a surface of said...
6479214 High density optical storage and retrieval using the electromagnetic absorption spectrum to represent multiple bit information  
An apparatus for retrieving information stored on an optical disk as colored dots, using an array of laser diodes emitting multiple wavelengths. Colored dots store more information than pits and...
6456584 Optical information recording medium comprising a first layer having a phase that is reversibly changeable and a second information layer having a phase that is reversibly changeable  
A multi-layer optical information recording medium has a first information layer located at the incident side for a laser beam and another information layer at the back thereof. Thus, it has a...
6449221 Storage media for optical storage systems  
Magneto-optical storage media designed for optical storage systems such as disk drives with optical flying heads. Dielectric layers are designed and implemented to maximize optical coupling between...
RE37742 High-density optical disk and method of producing the same  
A high-density optical disk includes reflective layers respectively formed at both information-recorded surfaces of a first substrate, and semitransparent layers respectively formed at one...
6385164 Protective cover for an optical disc  
An optical disc protector includes a circular main surface and a peripheral lip. The main surface is a circular sheet of optically clear material having a diameter slightly larger than most optical...
6385162 Optical disk  
An optical disk which operates which two of more different wavelengths, comprising a disk substrate on which tracks are formed at a track pitch of not more than 0.5 μm corresponding to light with...
6361846 Device for curing an adhesive between two layers of an information carrier  
A device cures an adhesive by means of UV radiation in an inert-gas atmosphere. The adhesive is interposed as an adhesive layer between two superposed layers of a disc-shaped information carrier....
6361922 Thicker optical recording layers comprising a tetra dye having a metallized azo dianionic dye with cationic dye counterions  
The present invention discloses optical recording elements having optical recording layers containing tetra dyes. The dyes have metallized azo dianionic dye with cationic dye counterions. The...
6355327 Optical recording medium and dipyrromethene metal chelate compound for use therein  
A novel optical recording medium having at least a recording layer and a reflective layer on a substrate is herein disclosed, wherein at least one dipyrromethene metal chelate compound represented...
6352753 Optical recording medium  
A rewritable phase change type optical recording medium having excellent in storage durability such as archival property and overwrite shelf property and is less likely to have increased jitters,...
6353592 Optical recording medium and optical disk device  
The present invention provides an optical recording medium including a recording layer and a light-transmitting layer successively formed on one side of a substrate, so that a light is applied from...
6335071 Storage member  
In an optical disk which includes a recording film having a laminated construction, and which records information by changing optical characteristics of the recording film by applying a laser beam,...
6335069 Phase-changeable optical recording medium, method of manufacturing the same, and method of recording information on the same  
A phase change optical disk having a reflectance relation of Rc<Ra and is adapted such that high recording characteristic can be obtained starting at a first recording time even when a recording...
6333913 Optical recording medium and optical recording method  
An optical recording medium of phase change type wherein favorable recording/reproducing properties are realized in high density recording, in particular, when the minimum mark length is up to 0.6...
6322868 Use and manufacturing applications of polymer / dye-based thin layer coatings for enhancement of the quality of recording on and readout from the optical storage media  
Composition and use of polymers in appropriate solvent(s) with or without addition of selected dye combinations are proposed for developing a thin-layer coating on the transparent layer of optical...
6319582 Optical recording medium  
Disclosed is an optical recording layer in which the microaperture for reproducing optical near-field light is controllable so as to read out the optical near-field signals with stability by...
6312779 Information recording medium and information recording/reproducing apparatus  
An information recording medium which is composed of a substrate and a recording layer formed thereon to record information by means of the change in atomic arrangement induced by irradiation with...
6312780 Optical recording medium  
A phase change optical recording medium which enables optimum direct overwrite even under high speed high density conditions without degrading repetition durability or storage stability of recorded...
6309729 Optical memory device and a method for manufacturing thereof  
An optical memory device and a method for manufacturing thereof. An optical memory device has at least one data layer formed on a substrate. An upper surface of the substrate is formed with a...
Matches 101 - 150 out of 554 < 1 2 3 4 5 6 7 8 9 10 11 12 >