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| Number | Title | Issue Date |
| 8158234 | Optical recording medium The invention is principally to provide an archival optical recording medium of high quality which has satisfactory recording/reading characteristics when used in high-speed recording and high-density recording. The invention accomplishes the object with an optical ... | 04/17/2012 |
| 8071195 | Multi-layered object comprising hard coat layer and light transmitting layer, and method for producing the same The present invention provides a multi-layered object having a hard coat layer capable of improving anti-staining property, anti-staining durability, scratch resistance, abrasion resistance and the like. A multi-layered object comprising a hard coat layer and a ligh... | 12/06/2011 |
| 8017211 | Composition, cured product and article A composition, etc. are provided, which can enhance hardness and afford abrasion resistance even in a thin film as well as excellent antifouling property and durability of the antifouling property. An organic polymer, is provided, which comprises 5 to 30 weig... | 09/13/2011 |
| 8012560 | Optical disc and method of manufacturing same An optical disc (10) includes a substrate (11), which is formed from either a resin-impregnated paper produced by impregnating a paper with a resin, or a resin-coated paper produced by coating a surface of a paper with a resin, and a recording layer ( | 09/06/2011 |
| 7955681 | Optical article having a material capable of undergoing a morphological transformation as an anti-theft feature and a system and method for inhibiting theft of same An optical article configured to transform from a pre-activated state of functionality to an activated state of functionality is provided. The optical article includes an optical data layer for storing data, wherein the data is read from the optical data layer in an... | 06/07/2011 |
| 7883757 | Resin composition for optical disk and cured product thereof Disclosed is an ultraviolet-curable resin composition containing a polyurethane compound (A), a photopolymerization initiator (B), and an ethylenically unsaturated compound (C) other than the compound (A). The polyurethane compound (A) is obtained by reacting an epo... | 02/08/2011 |
| 7838097 | Hardcoat agent composition and optical information medium thereof A hardcoat agent composition comprising a fluorine-containing polyether compound (A) having a perfluoropolyether unit, urethane bond and active energy ray reactive group and a curable compound (B) having equal to or more than 2 active energy ray polymerizing groups ... | 11/23/2010 |
| 7829169 | Information recording medium and method for producing the same An information recording medium ensuring high recording and erase function and excellent archival characteristic at a high linear velocity and over a wide range of linear velocities is provided. Such a medium is obtained by constructing a recording layer which has a... | 11/09/2010 |
| 7799404 | Photo-curable transfer sheet, laminate, optical information recording substrate, process for the preparation thereof, and optical information recording medium A photo-curable transfer sheet having a photo-curable layer comprising a photo-curable composition, the photo-curable composition being deformable by application of pressure and containing a reactive polymer having a photopolymerizable functional group. The photo-cu... | 09/21/2010 |
| 7785689 | Raw material conserving optical data storage media The invention provides for modifications to conventional optical data storage media to reduce the amount of raw material necessary in the media construction. More particularly, a portion of a thermoplastic substrate is modified to create one or more substantial void... | 08/31/2010 |
| 7758944 | Optical medium and method for making the same Improved structures of optical medium are disclosed. According to one embodiment, multiple reflective layers are used. These reflective layers are in different materials. At least one of the reflective layers allowing a significant amount of a laser beam to transmit... | 07/20/2010 |
| 7758943 | Organic dye for recording layer and high density optical recording medium using the same A recording layer including a novel dye for a high density optical recording medium, employing short wavelength laser source with a wavelength not longer than 530 nm for recording high density information and reproduction/playback of the high density information rec... | 07/20/2010 |
| 7736715 | Optical recording medium, and information recording/playback apparatus and method using the medium In a single-sided, recordable/rewritable phase change optical recording medium having one or more layers, an interface layer adjacent to a phase change optical recording film contains at least Zr (zirconium), O (oxygen), and N (nitrogen), and further contains one or... | 06/15/2010 |
| 7718242 | Organic dyes for recording layer and high density optical recording medium using the same A recording layer including a novel dye for a high density optical recording medium, employing short wavelength laser source with a wavelength not longer than 530 nm for recording high density information and reproduction/playback of the high density information rec... | 05/18/2010 |
| 7713609 | Optical disk and method for manufacturing the same A first substrate is formed to include a surface on which a first record layer is formed, and which includes an inner circumferential portion on which a ring-shaped member is provided. Ultraviolet curing resin is dropped onto part of the surface which is located inw... | 05/11/2010 |
| 7691463 | Optical recording materials and recording mediums using the same A rewritable phase change optical recording medium includes a substrate, a dielectric layer deposited on a surface of the substrate, and an optical recording layer deposited on the dielectric layer, wherein the dielectric layer may be omitted. The optical recording ... | 04/06/2010 |
| 7682679 | Optical information recording medium and method of manufacturing the same A dye or dyes are selected, which are capable of absorbing a laser beam with a wavelength of 350 to 500 nm and are capable of recording sub-information using a laser beam with a wavelength of 640 to 680 nm or 750 to 830 nm. An optical information recording medium in... | 03/23/2010 |
| 7682677 | Information recording medium and method for manufacturing the same An information recording medium with high recording sensitivity and superior repeat overwriting capability. The information recording medium (15) comprising at least recording layer (104) recording and/or reproducing information through irradiation wit... | 03/23/2010 |
| 7682678 | Optical information recording medium, recording and readout methods using the same, optical information recording device, and optical information readout device An optical information recording medium includes a substrate formed in a concave-convex state by providing pits or grooves corresponding to recorded information, used for optically reproducing the information by irradiation of a light beam, and may also include a re... | 03/23/2010 |
| 7645500 | Metal alloys for the reflective or the semi-reflective layer of an optical storage medium A silver-based alloy thin film is provided for the highly reflective or semi-reflective coating layer of optical discs. Elements that can be added to silver to produce useful silver alloys include zinc, aluminum, copper, manganese, germanium, yttrium, bismuth, scand... | 01/12/2010 |
| 7645499 | Optical information recording medium and manufacturing method thereof The optical information recording medium of the present invention includes a plurality of information layers provided on a substrate and an optical separating layer provided between information layer adjacent to each other, and information is recorded or reproduced ... | 01/12/2010 |
| 7625621 | Amino antipyrine based azo ligands and their metal complexes for use as optical recording media The present invention provides novel azo dye material based on antipyrine azo structure and metal complexes containing such azo compounds which are suitable for optical recording media. The dyes exert high light-fastnesses properties and excellent recording characte... | 12/01/2009 |
| 7611762 | Optical recording medium An optical disc having a transition linear velocity of 8-11 m/s when irradiating continuous light with 11±1 mW and a wavelength of 660±10 nm using a pickup head with a numerical aperture (NA) of 0.65, and satisfying the following condition: ΔR=|Rb−... | 11/03/2009 |
| 7601412 | Information recording medium, information reproduction method and information recording method A method for mass-producing a recording mark capable of being reproduced even below the diffraction limit in the information recording medium. A medium comprising: a substrate including a first material on the surface, and a second material formed on a first area on... | 10/13/2009 |
| 7592058 | Optical recording medium An optical recording medium with a high productivity is provided which can certainly record/reproduce data even when a blue or blue-violet laser beam is used as an irradiation light. An optical recording medium has a substrate and a recording layer. The recording la... | 09/22/2009 |
| 7582346 | Inorganic optical recording medium comprising a heat dissipation layer The optical recording medium comprises an active layer of inorganic material, able to undergo deformations due to the effect of an optical radiation, presenting a front face designed to receive an optical radiation during writing operations and a rear face. An addit... | 09/01/2009 |
| 7541081 | Phase change memory for archival data storage A structure for storing digital data is provided, with a high reflectance layer comprising a noble metal formed over an underlying material layer, and a plurality of low reflectance portions comprising a mixture of a noble metal and an underlying material. The plura... | 06/02/2009 |
| 7534480 | Multi-layer super resolution optical disc Disclosed is a multi-layer super resolution optical disc. In the multi-layer super resolution optical disc, at least two recording layers, each of which comprises at least two mask layers and impact absorption layers formed between the mask layers, are laminated, an... | 05/19/2009 |
| 7524549 | Method for evaluating optical information medium and optical information medium An optical information medium includes a light-transmitting supporting substrate, an information recording layer on one surface of the supporting substrate, a protective layer on the information recording layer, and a light-transmitting hard coat layer on an other s... | 04/28/2009 |
| 7524548 | Optical recording medium The optical recording medium is an optical recording medium having at least one information layer including a recording film, characterized in that the recording film is formed by a phase change material including at least Sb, Ge and Mg as main components. ... | 04/28/2009 |
| 7521106 | Inks for use on optical recording media An optical recording medium, comprises a substrate, an imaging composition disposed on said substrate, said compound comprising: a matrix, a color-forming agent, and a nucleating agent. The nucleating agent increases the nucleation density of at least one component ... | 04/21/2009 |
| 7510753 | Phase-change optical recording media A Phase-change optical recording media includes a recording film that causes reversible phase-change between a crystalline phase and an amorphous phase on irradiation with light, and an interface film formed in contact with at least one surface of the recording film... | 03/31/2009 |
| 7501172 | Integrated recording and labeling with optical recording device An integrated system for individually labeling a recording medium at the time that digital information is recorded thereon, by recording write data with a digital recorder on the read/write surface of the recording medium and recording image data by inducing visible... | 03/10/2009 |
| 7498071 | Laminated material with imprinted information, article on which the same is attached, method for reading information code It is an object of the present invention to provide a laminated member with an recorded information code, having a high reading accuracy, which do not detract from product design and which do not require a special reading apparatus. A laminated member 10 of t... | 03/03/2009 |
| 7491436 | Optical information recording medium An optical information recording medium comprising a substrate, recording layer and reflecting layer, characterized in that a layer containing a mixture of carbide and oxide is disposed over a surface of the reflecting layer which faces to the recording layer. The c... | 02/17/2009 |
| 7488526 | Sputtering target and manufacturing method therefor, and optical recording medium and manufacturing method therefor To provide a sputtering target used for the formation of a recording layer of a recordable optical recording medium, wherein the sputtering target contains Bi and Fe and the packing density of the sputtering target is greater than 96%, and a recordable optical recor... | 02/10/2009 |
| 7485355 | Optical information recording medium and method for manufacturing the same An optical information recording medium includes the first to the n-th information layers (where n is an integer not less than 3) arranged in this order from a laser beam incident side. Each information layer includes a recording layer containing Te, O and M, where ... | 02/03/2009 |
| 7485357 | Optical recording medium An optical recording medium including: a substrate having translucency; a first protective layer thereon; a recording layer composed of a phase-change material; a second protective layer; and a reflective layer, wherein laser beam irradiation causes phase-change of ... | 02/03/2009 |
| 7485356 | Optical recording medium An optical recording medium includes an information layer having a recording film. The recording film contains Sb of 79 atomic % to 95 atomic % and Ge of 5 atomic % to 21 atomic % as main components, and is formed of a phase change material which does not contain th... | 02/03/2009 |
| 7468201 | Materials for high density optical recording media Materials for optical recording media are disclosed. Specifically, the materials are metal chelate compounds of azo dyes, which are formed from sulfamoylated m-diaminobenzene compounds and benzene ring-containing azo compounds. Further, the invention provides an opt... | 12/23/2008 |
