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| Number | Title | Issue Date |
| 8125881 | Optical information recording medium, reproduction method and optical information processing device using the same An optical information recording medium of the present invention, a reproduction method using the optical information recording medium, and an optical information processing device using the optical information recording medium, each of which optically reproduces re... | 02/28/2012 |
| 8116194 | Optical information recording method, optical information recording medium, optical information reproducing device, optical information reproducing method and optical information recording and reproducing device The invention is able to enhance a recording speed. In the invention, a recording mark (RM) composed of a cavity is formed by vaporizing a two-photon absorbing material by a two-photon absorption reaction as an embodiment of a photoreaction against a recording light... | 02/14/2012 |
| 8014260 | Optical information recording medium, information recording method and information recording system An optical information recording medium is provided with a substrate having a pregroove formed on one main plane; a reflecting layer arranged on the one main plane of the substrate and reflecting an access controlling laser beam; a selective reflecting layer arrange... | 09/06/2011 |
| 7990838 | Process for producing stamper of multi-valued ROM disc, apparatus for producing the same, and resulting disc The present invention provides a process for producing inexpensively and effectively a stamper utilized for producing multi-valued ROM discs, which comprises: (i) irradiating a light onto a laminate, thereby producing reacted porti... | 08/02/2011 |
| 7948861 | Optical disk and recording method of visible figures into optical disk Multicolor characters or pictures are written in an optical disk in a visible manner. The optical disk comprises a figure writing layer for writing a visible figure in addition to a data recording layer for recording data. Recording of user data in the data recordin... | 05/24/2011 |
| 7933194 | Read-once record medium The present invention relates to a read-once record medium that comprises a data substrate, a sensitive layer; a reflective layer, an adhesive layer and a transparent substrate; thereby, the structure of the sensitive layer or the data substrate will be changed when... | 04/26/2011 |
| 7916619 | Optically-readable disk with copy protection device An optically-readable disk includes a device that disrupts readability of the disk when the disk is spun at an angular velocity substantially greater than required to play the disk in its intended playing device, or for when a defined integral of velocity and time i... | 03/29/2011 |
| 7813258 | Optical information recording medium and optical information reproducing method A disc structure for making an inverted optical response through a super-resolution process using a recorded mark portion and a space portion, which is realized to amplify a signal amplitude and solve a conventional problem that a conventional super-resolution techn... | 10/12/2010 |
| 7782747 | Optical information recording medium including super resolution reproducing film, method for reproducing optical information recording medium, and optical information processing apparatus using optical information recording medium In order to realize (A) an optical information recording medium in which information is stored in high density and can be precisely and securely reproduced, (B) a method for reproducing the optical information recording medium, and (C) an optical information process... | 08/24/2010 |
| 7701838 | Optical information medium including an information bearing surface and a functional layer, and reading method In an optical information medium having an information bearing surface having projections and depressions and/or capable of forming recorded marks, a functional layer is added. The information borne on the information bearing surface can be read by using reading lig... | 04/20/2010 |
| 7558187 | Apparatus and method of initializing phase-change optical disk Provided is an apparatus and method of initializing a recording layer used in manufacturing a phase-change optical disk for storing information. The optical disk is initialized using a UV lamp in order to initialize the recording layer of the phase-change optical di... | 07/07/2009 |
| 7463575 | Optical information recording medium, method for manufacturing the same, and initialization device An optical information recording medium includes a plurality of recording layers, a reflectance of at least one of the plurality of the recording layers in a non-initialized state with respect to a light beam for initialization being smaller than a reflectance of th... | 12/09/2008 |
| 7439007 | Phase change information recording medium having multiple layers and recording and playback method for the medium A multilayer phase change information recording medium including plural information layers containing at least a first information layer and a last information layer, each of which includes a recording layer in which information is recorded utilizing a phase change ... | 10/21/2008 |
| 7425401 | Cyanine compounds, optical recording materials and optical recording media An optical recording medium containing a cyanine dyes of formula: Where at least one pair of R1 & R2 and R3 & R4 are benzyl moieties, rings A and B are each a benzene or naphthalene ring, Y1 and Y2 are C 1-30 organic groups... | 09/16/2008 |
| 7419762 | Media and method for limiting access to data thereon A media can comprise: a reflective layer, an oxygen penetrable UV coating, and a reactive layer disposed between the UV coating and the reflective layer. The reactive layer can comprise a reactive material that oxidizes with exposure to oxygen. ... | 09/02/2008 |
| 7402375 | Cyanine dyes The present invention provides organic dye compounds having their absorption maxima in a region ranging from the ultraviolet region to a relatively short wavelength visible region and uses thereof. The present invention provides specific monomethine cyanine dyes, li... | 07/22/2008 |
| 7403457 | Method and apparatus for recording information with a multi-layer structure An optical recording medium has a multi-layer structure recording layer portion including plural recording layers provided with tracks for guiding a recording light and being adapted to record data, where recording condition information and recording layer identific... | 07/22/2008 |
| 7384723 | Optical information recording medium An optical information recording medium including a substrate having successively disposed thereon a recording layer, an interlayer, a pressure sensitive adhesive layer and a cover film in which information is recordable and reproducible by irradiating laser light a... | 06/10/2008 |
| 7378220 | Optical information recording method and medium An optical information recording medium includes a substrate having disposed thereon a recording layer that is recordable by irradiating the recording layer with a laser having a wavelength of 450 nm or less. The recording layer contains a specific phthalocyanine de... | 05/27/2008 |
| RE40330 | Optical recording medium, reproducing system, method of reproducing optical disk, method of fabricating optical disk original record, and method of stopping illegal program operation The present invention provides an optical disk 9 with a duplication preventing function, reproducing system 47 for the optical disk 9, optical disk reproducing method, method of fabricating an optical disk original record, and illegal program op... | 05/20/2008 |
| 7368223 | Multi-stack optical data storage medium and use of such a medium A multi-stack optical data storage medium for rewritable recording by a focused laser-light beam, the medium having a substrate with deposited on aside thereof: a first recording stack comprising a phase-change type recording layer... | 05/06/2008 |
| 7358031 | Optical information recording medium, optical information recording device and manufacturing method of optical information medium A multilayer optical information recording medium includes optical information recording layers, and dielectric multilayer reflecting layers provided under the optical information recording layers respectively. Each of the dielectric multilayer reflecting layers inc... | 04/15/2008 |
| 7359306 | Holographic recording medium Provided is a holographic recording medium including a recording layer in which information is to be holographically recorded, and a light-shielding layer which faces a main surface of the recording layer. The transmittance of the light-shielding layer for a recordi... | 04/15/2008 |
| 7355951 | High density data recording/reproduction method utilizing electron emission and phase change media, and data recording system adopting the same, and media for the system A rapid data recording/reproducing method, a data recording system adopting the same, media for the system, and a tracking method, wherein the recording/reproducing method includes preparing media having a data recording layer in which a phase change is generated th... | 04/08/2008 |
| 7354694 | Styryl dye The present invention provides styryl dyes which have absorption maxima at a wavelength of 400 nm or less and are sensitive to a laser beam with a wavelength of 450 nm or less, light absorbents and optical recording media which comprise the styryl dyes, and a proces... | 04/08/2008 |
| 7352686 | Limited play optical devices with interstitial reactive layer and methods of making same A data storage device comprises a first substrate and a second substrate, wherein at least the first substrate has defined thereon a plurality of pits and lands covered by a reflective material; and a bonding layer between the first and second substrates including a... | 04/01/2008 |
| 7348125 | Optical information recording medium and novel immonium compound Disclosed is an optical information recording medium comprising a substrate having provided thereon a recording layer capable of recording information by laser beam irradiation, wherein the recording layer contains at least one compound represented by the following ... | 03/25/2008 |
| 7348124 | High-density readable only optical disk A high-density readable only optical disk with a large storage capacity includes a substrate with pits, and one or more mask layers with a super resolution near field structure, which are made of a mixture of a dielectric material and metal particles. The optical di... | 03/25/2008 |
| 7328447 | Optical recording medium manufacturing device, method, optical recording medium, reproduction device, method, recording device, and method An optical recording medium having a plural number of recording layers includes a n-th recording layer (23) (n≧1), made up by a substrate (20) and a semi-reflective layer (21) carried by the substrate (20) and adapted for partially refl... | 02/05/2008 |
| 7321481 | Optical recording medium An optical recording medium includes a substrate, a light transmission layer and a plurality of recording layers between the substrate and the light transmission layer and capable of recording data in the plurality of recording layers and reproducing data recorded i... | 01/22/2008 |
| 7301944 | Media file distribution with adaptive transmission protocols A server/client media file distribution system is provided in which the server system is adapted to receive transmission requests from clients, status information from a network, and protocol information from each client. The server, based upon this information, ada... | 11/27/2007 |
| 7300742 | Data storage medium and method for the preparation thereof A data storage medium includes a substrate, a reflective metal layer, and a haze-prevention layer between the substrate and the reflective metal layer. The substrate includes an amorphous thermoplastic resin having a heat distortion temperature of at least about 140... | 11/27/2007 |
| 7298682 | Method of recording information in optical recording medium, information recording apparatus and optical recording medium It is an object of the present invention to provide an information recording method for recording information in a data rewritable type optical recording medium having a plurality of information recording layers, which can form recording marks having good shapes. In... | 11/20/2007 |
| 7292515 | Multi-layer information storage system with focus and radial positioning error detection 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 aberration for a single height of the scanning spot with the stack of laye... | 11/06/2007 |
| 7286291 | Show-through security packaging system for digital media A system of visual authentication of digital media. A visual means is provided at the point of purchase for a user to verify that the source of software is genuine. An authentication image is embedded into a portion of a media. The authentication image is not visibl... | 10/23/2007 |
| 7276274 | Optical recording medium and method for recording and reproducing data An optical recording medium includes a substrate, a light transmission layer and a plurality of recording layers between the substrate and the light transmission layer and capable of recording data in the plurality of recording layers and reproducing data recorded i... | 10/02/2007 |
| 7263057 | On-groove recordation type optical disc Hardness of a resin substrate of an optical disc is selected to be greater than hardness of a cover layer of the optical disc, at least when information is recorded on the optical disc. A laser beam is transmitted to an organic dye layer of the optical disc through ... | 08/28/2007 |
| 7247417 | Optical recording medium and optical recording/reproducing method The present invention provides an optical recording medium that includes a recording layer composed mainly of an organic compound and can utilize blue-violet semiconductor laser light (390 to 420 nm in wavelength) as recording/reproducing laser light. The present in... | 07/24/2007 |
| 7241555 | Optical information recording medium and method for recording information The present invention provides an optical information recording medium including a substrate; and a recording layer provided onto the substrate, to which information can be recorded and from which the information can be replayed by irradiating the medium with a lase... | 07/10/2007 |
| 7231649 | Optical recording medium and method for optically recording data in the same An optical recording medium includes a substrate, a first recording layer formed on the substrate and containing an element selected from the group consisting of Si, Sn and Ge as a primary component, and a second recording layer located in the vicinity of the first ... | 06/12/2007 |
