|
Match
|
Document |
Document Title |
|
|
7641822 |
Master information carrier for magnetic transfer and a method for producing the carrier
A method of producing a master information carrier by scanning a track a number of times. The method produces a master information carrier has a pattern of a magnetic layer representing information...
|
|
|
7632429 |
Method for molding disc substrate
Preventing a molded disc substrate from generating a separation pattern. To this end, a molding die 1 includes a pair of stationary die 6 and movable die 7 , and an outer circumference ring ...
|
|
|
7625506 |
Optical recording medium producing method, and optical recording medium producing device
When manufacturing an optical recording medium by forming a resin layer on a surface of a substrate and then forming a center hole that passes through the substrate and the resin layer, a method of...
|
|
|
7563402 |
Apparatus for and method of manufacturing an optical disc
The present invention makes it possible to strip off a stamper stuck on a resin layer for groove formation during the manufacture of an optical disc from the resin layer without imparting damage or...
|
|
|
7488436 |
Optical disk and method for producing the same
An optical disk is constructed such that a thin film including a reflective layer is formed on a substrate, or on a thermoplastic resin layer on the substrate. A stamper having an asperity pattern...
|
|
|
7410591 |
Method and system for making a nano-plate for imprint lithography
Provided is a method and system for manufacturing a nano-plate. The method includes depositing two or more types of film around a central core to form a plurality of film layers, each film layer...
|
|
|
7362692 |
Method and system of mass producing double-sided optical discs
Double-sided optical discs, such as a DVD-18 disc, are mass produced with data tracks on each layer. The tracks on one side of the discs are oriented along one spiral while the tracks on the other...
|
|
|
7347959 |
Information recording medium and method of manufacturing same
Two substrates are simultaneously produced by an injection molding apparatus, and the injection-molded substrates are alternately arranged and cooled by a cooling apparatus. The cooling apparatus...
|
|
|
7323124 |
Optical disc cover layer formation method and optical disc cover layer formation device
A liquid-form adhesive, which is a raw material of the cover layer, is supplied to a plate surface of the disc substrate, which has been set on a turntable, after which a dummy substrate is set on...
|
|
|
7311516 |
Die for molding disk substrate and method of manufacturing disk substrate
A die for molding a disk substrate capable of forming fine recessed and projected pits and grooves up to the outer periphery of the disk substrate by preventing low heat conductive elements from...
|
|
|
7303381 |
Device for manufacturing optical disc, method of manufacturing the same, and optical disc
In an optical disc molding device, a heating medium from a low-temperature controller is made to flow in temperature controlling flow passages (passages 3 a ) formed at locations corresponding to...
|
|
|
7300609 |
Injection-moulding tool for the production of information carriers in disc form
An injection-moulding tool for the production of a mould in disc form, in particular in the form of information carriers such as CDs and/or DVDs, wherein the injection-moulding tool comprises a...
|
|
|
7294294 |
Surface modified stamper for imprint lithography
A method of performing imprint lithography of a surface substrate includes a stamper having a thin lubricant coating thereon to facilitate release of the stamper from the imprinted surface to...
|
|
|
7285332 |
Laminate roll
A wound laminate obtained by laminating a plastic film composed of an aromatic polycarbonate comprising bisphenol A as an aromatic dihydroxy component, and a protective film composed of an aromatic...
|
|
|
7214052 |
Injection-molding tool for the production of disc-shaped information carriers
An injection molding tool is described for the production of disc-like information carriers, in particular in the form of CD's and/or DVD's. The injection molding tool has a first and a second...
|
|
|
7182890 |
Matrix and method of producing said matrix
The invention relates to a matrix suitable for use in the replication of a plastic element having a positive microstructure, comprising a first wear-resistant layer that is supported by a carrier...
|
|
|
7171676 |
Stamper for producing optical recording medium, optical recording medium, and methods of producing the same
A method of producing a stamper, an optical recording medium produced by molding using the stamper, and a method of producing the same, wherein a base member having a mirror polished main surface...
|
|
|
7157031 |
Method of replicating a textured surface
The present invention relates to methods for forming textured surfaces in a polymeric surfaces. Moreover, the present invention relates to methods for forming textured surfaces in a polymeric...
|
|
|
7151640 |
Molded lens having an outer circumference and first and second optical surfaces with cut off peripheral portions, and molding die for the molded lens
A molded lens used in an optical pickup device provided with a plane of incidence having a first optical surface and a plane of emergence having a second optical surface, and a form of an outer...
|
|
|
7138165 |
Intermediate for optical recording medium, mold, molding apparatus, and method of manufacturing optical recording medium
There is provided an intermediate for an optical recording medium, which can be uniformly coated with resin by the spin coating method without using a resin coating-assisting member, and allows...
|
|
|
7128851 |
Method of removing scratches from a compact disc
An apparatus and method is disclosed for repairing and removing scratches from an optically-read disc, e. g., compact discs (often called “CD's” or “DVD's” such that when refurbished, an...
|
|
|
7118681 |
Method for the fabrication of an optical disk master
A method for fabricating an optical disk master including fabricating a precursor formed from a substrate including at least one layer of metallic material and having at least one protuberance or...
|
|
|
7097791 |
Method of controlling/regulating an embossing procedure and drive control device for injection molding machines
The invention relates to a novel method for producing precision parts, especially flat optical data carriers. According to the inventive method, the embossing procedure is program-controlled on the...
|
|
|
7052269 |
Die assembly for molding optical disc substrates
It is an object of the present invention to provide a die assembly for molding optical disc substrates, wherein formation of a burr perpendicular to a reading surface that is opposite to a signal...
|
|
|
7055162 |
Optical information medium and making method
An optical information medium includes a disk-shaped substrate ( 100 ) having a center hole ( 101 ), an annular information recording area thereon, and an annular resin-based light-transmitting...
|
|
|
7018572 |
Method for producing data storage media
Disclosed herein are data storage media and methods of making the same. The data storage media, comprises: primary surface features disposed on at least one side of said data storage media; and...
|
|
|
6977052 |
Check disk for optical data storage disk manufacturing
In one embodiment, the invention is directed to a manufacturing process for optical data storage disks that makes use of a check disk very early in the production cycle. The check disk can be...
|
|
|
6962668 |
Double-sided digital optical disk and method and apparatus for making
A digital optical information disk contains content and/or non-content information on both sides of a single substrate produced by a process that embosses the surfaces of both sides substantially...
|
|
|
6939120 |
Disk alignment apparatus and method for patterned media production
An apparatus and method for aligning a disk with an imprinting surface are described. In one embodiment, the apparatus has a die which includes an air-bearing mandrel having a tapered nose to...
|
|
|
6939485 |
Method for shaping optical storage discs and products thereof
The invention provides a method of shaping optical storage devices (OSD) by placing an OSD between a die set having a male die and female die corresponding to a desired shape and advancing and...
|
|
|
6936195 |
Method and apparatus for storing and retrieving information using optical data storage media
Disclosed is a method of manufacturing optical information storage media and multi-layered optical information storage media. Paired information storage structures have characteristic wavelength...
|
|
|
6921499 |
Master carrier for magnetic transfer
To improve the quality of transfer signal by reducing loss of azimuth when the magnetic transfer is performed by bringing a master carrier and a slave medium into close contact with each other and...
|
|
|
6896829 |
Method of manufacturing a composite disc structure and apparatus for performing the method
A method of making composite discs continuously, including forming for each disc a first, a second layer, and a third support layer, each support layer being disc shaped and having a first surface...
|
|
|
6875378 |
Optical disk molding apparatus and method
An optical disk molding apparatus and method are provided which prevent data formed on a molded object from being damaged and prevent quality deterioration of the molded object. There are provided...
|
|
|
6843622 |
Apparatus and method for profiling optical disks
An apparatus for the automated profiling the edge of successive optical disks, and including an optical disk supply assembly for holding a supply of optical disks to be profiled, a turntable for...
|
|
|
6835270 |
Process and apparatus of producing optical disk and process of producing substrate
There is provided a process of producing a laminate type optical disk comprising the steps of: (1) molding a pair of substrates of a transparent resin at least one of which substrates has...
|
|
|
6821460 |
Two-sided replication of data storage media
The invention is directed towards techniques for creating optical data storage disks. In one embodiment, the invention provides a simultaneous two-sided rolling bead process. For example, a method...
|
|
|
6821459 |
Information-recording medium and method for producing the same
Disclosed is a method for producing an information-recording medium comprising, on a substrate, a dye recording layer capable of recording information, the method comprising the step of drying the...
|
|
|
6814897 |
Method for manufacturing a molding tool used for substrate molding
The invention relates to methods for making mold tools. More particularly, the mold tools are used for molding a resin substrate which has fine pits, i.e., concavities and protuberances. The...
|
|
|
6814898 |
Imprint lithography utilizing room temperature embossing
A method of performing imprint lithography of a surface of a workpiece including a substrate, wherein a stamper/imprinter comprised of a material having thermal expansion characteristics different...
|
|
|
6800224 |
Production process of optical disc and optical disc produced thereby
A production process of an optical disk, wherein when a layer of an ultra violet rays curing resin which constitutes a portion of the optical disk is formed, a comi-transparent film of a metal is...
|
|
|
6787071 |
Method and apparatus for producing data storage media
In one embodiment, the method for producing a stamper, comprises: forming a nickel plated substrate having desired surface features on one side; disposing a managed heat transfer layer on a second...
|
|
|
6716374 |
Clamp pressure control method for injection molding process
An injection-compression molding apparatus includes a stationary mold provided with a nozzle for injecting molten resin, and a movable mold driven by a servo motor. In compressing the resin,...
|
|
|
6713161 |
Light-transmitting electromagnetic shielding material and method for manufacturing the same
A light-transmitting electromagnetic wave-shielding material includes a hydrophilic transparent resin layer laminated on a transparent substrate. An electroless plating layer is laminated on the...
|
|
|
6703100 |
Disk-like recording medium and method for producing the same
A recording medium for information signals including a substrate, a signal recording layer provided on one major surface of the substrate and a clamp member having a positioning unit at its center...
|
|
|
6695987 |
Production method for optical disc
The present invention is to provide a production method for an optical disc, capable of obtaining a good S/N ratio without deterioration of the stamper quality due to reaction with an electron...
|
|
|
6696099 |
Optical disk employing integral substrate, and method for manufacturing the same
An optical disk, which comprises: a common integral substrate having grooves and/or pits formed on its both sides: and a film structure on at least one side of the integral substrate. They are...
|
|
|
6656392 |
Method and apparatus for compensating optical disks for effects of thin films
An optical data storage/recording medium is provided with a thin film adjacent a data surface. Potential undesired effects of the presence or thickness of the thin film are adjusted for or...
|
|
|
6649093 |
Method of manufacturing an optically scannable information carrier
The invention relates to a method of manufacturing a master mold ( 1 ), which is used to manufacture an optical information disc, such as a CD or DVD. According to the method, a substrate ( 3 ) is...
|
|
|
6623591 |
Optical disc and method of manufacturing the same
The invention intends to provide a method of manufacturing an optical disc capable of efficiently manufacturing a high quality optical disc by a consecutive product line, and to improve...
|