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US20120251760 |
GLASS SUBSTRATE FOR MAGNETIC DISK AND METHOD FOR PRODUCING THE SAME
A method for producing a glass substrate for a magnetic disk involving the use of a polishing pad having: a first resin foam layer which forms the polishing surface, includes a resin foam having... |
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US20050048252 |
Substrate and storage media for data prepared therefrom
A disk substrate prepared from a blend of poly(arylene ether) resin and poly(alkenyl aromatic) resin is disclosed. The substrate can be used in data storage media having dimensional stability and... |
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US20050123709 |
Glass or ceramic disk which is not chemically strengthened for use in disk drive data storage devices
The circumferential edges of glass or ceramic disks used in disk drive data storage devices are preferably finished by ductile grinding to produce an essentially fracture-free surface, which is... |
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US20050013962 |
Thermoplastic polymer material for audio and/or optical information recording media
The invention concerns moulded discs for audio and/or optical information recording media (such as CDS and DVDs) obtained from a thermoplastic polymer material comprising, by weight, (a) 60 to... |
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US20090220723 |
Moulding Device and Method
An injection-moulding device is disclosed, comprising at least a first (1) and a second (3) mould part, defining a mould cavity (4). At least one of the mould parts comprises cooling ducts (5),... |
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US20090116367 |
FERROELECTRIC RECORD CARRIER, ITS METHOD OF MANUFACTURE AND MICRO-TIP RECORDING SYSTEM INCORPORATING SAME
The present invention relates to a data record carrier of the type with ferroelectric memory layer, its method of manufacture and a micro-tip recording system incorporating same. The invention... |
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US20050142321 |
Glass substrate for magnetic disks and process for its production
A glass substrate for magnetic disks, which is a doughnut-type glass substrate with its inner peripheral edge surface etching-treated, wherein the etching-treated inner peripheral edge surface is... |
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US20090304976 |
METHOD FOR MANUFACTURING GLASS SUBSTRATE FOR MAGNETIC DISC
A method for producing a glass substrate for magnetic disk, which is capable of effectively removing a crack is provided. In the method for producing a glass substrate for magnetic disk, there... |
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US20110268994 |
GLASS SUBSTRATE FOR INFORMATION RECORDING MEDIUM, POLISHING COLLOIDAL SILICA SLURRY FOR MANUFACTURING THE SAME AND INFORMATION RECORDING MEDIUM
The present invention relates to a colloidal silica slurry used in a method for manufacturing a glass substrate for an information recording medium, the method including: a lapping step of lapping... |
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US20110135866 |
INFORMATION RECORDING MEDIUM GLASS SUBSTRATE, INFORMATION RECORDING MEDIUM, INFORMATION RECORDING APPARATUS AND MANUFACTURING METHOD OF INFORMATION RECORDING MEDIUM GLASS SUBSTRATE
In an information recording apparatus such as a hard disk drive, a ramp for retreating its head from a recording medium when the apparatus is stopped is provided opposing the information recording... |
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US20060121234 |
Systems, compositions, and methods for laser imaging
Disclosed herein are imaging materials and methods of making imaging materials. The imaging systems disclosed herein may include a reflective layer disposed proximate to and beneath a laser... |
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US20090280285 |
STAMPER HOLDER, MOLDING DIE AND MOLDED SUBSTRATE FOR RECORDING MEDIUM
According to one embodiment, there is provided a stamper holder which holds a disk-shape metal stamper for molding having a center hole with an inner diameter of 17.5 mm or less and formed with... |
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US20100079893 |
METHOD FOR PRODUCING CONCAVO-CONVEX MEMBER, CONCAVO-CONVEX MEMBER, MAGNETIC TRANSFER METHOD, AND PERPENDICULAR MAGNETIC RECORDING MEDIUM
A method for producing a concaves-convex member having a concavo-convex pattern on a surface of a base material, including: forming a covering layer on surfaces of at least concave portions of an... |
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US20060228513 |
Method of manufactoring information recording medium and information recording medium
There are provided a method of manufacturing an information recording medium 1 having a water-based ink absorbing layer 2 on a surface of a base material 3, and the information recording medium 1... |
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US20110195279 |
METHOD FOR MANUFACTURING GLASS SUBSTRATE FOR INFORMATION RECORDING MEDIUM, GLASS SUBSTRATE FOR INFORMATION RECORDING MEDIUM, AND MAGNETIC RECORDING MEDIUM
A method for manufacturing a glass substrate for an information recording medium, wherein the abrasive and foreign matters adhered on the glass substrate after the polishing step are surely... |
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US20050186380 |
Recording medium and hard disk device using same
The upper surface of a recording medium includes a contact start stop (CSS) zone where projections are provided, and a data zone where data is recorded. The upper surface of the CSS zone is lower... |
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US20090047462 |
THREE-LEVEL RECORDING PHASE-CHANGE OPTICAL DISC
A three-level recording phase-change optical disc including a first recording layer, a second recording layer, a third recording layer, a reflective layer, and a dielectric layer is provided. The... |
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US20050008811 |
Method and apparatus for producing a sheet-like structure
Method for producing a sheet-like structure using a starting sheet-like structure. The method has a production process with at least one process parameter and includes the steps of arranging at... |
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US20060188818 |
Storage medium, reproducing method, and recording method
According to one embodiment, in a storage medium using an organic dye material, a degree of modulation of a lead-in pre-pit portion is 0.2 or more. |
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US20080021216 |
Molecular Platforms Having Transition Metal Grid Complexes for a Binary Information Recording Medium
The present invention provides a novel class of molecular coordination compounds, and more particularly, square supramolecular metal coordination grids of the formula (I): [Ma2(L)2a]Xz (I),... |
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US20090068391 |
INFORMATION RECORDING MEDIUM
The invention discloses an information recording medium comprising a disc body, an ink-receiving layer, and a stacker ring. The disc body comprises a non-data side and a data side. The... |
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US20090268594 |
INFORMATION RECORDING MEDIUM, INFORMATION RECORDING DEVICE AND METHOD, AND COMPUTER PROGRAM
An information recording medium (100) includes a first recording area (no-wobbling section) where control information which is clock information (Wobble) or address information (LPP) for recording... |
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US20100129585 |
PHOTO-INITIATED, NON- AQUEOUS, TEMPERATURE INDEPENDENT GELS, AND METHOD OF PREPARATION THEREOF
A liquid precursor for a gel comprises liquid polyethylene glycol (PEG), a gelling component such as a mixture of acrylic derivatives and optionally a polymerization initiator. A suitable... |