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| Number | Title | Issue Date |
| 7914969 | Storage medium, reproducing method, and recording method According to one embodiment, a write-once type information storage medium comprises a recording layer which is formed by mixing a plurality of organic dye based recording materials whose molecular weights are different from each other, and wherein a mixture ratio of... | 03/29/2011 |
| 7887993 | Optical information recording medium and recording method thereof To provide an optical information recording medium including a pigment appropriate for high-density and high-speed optical recording by the blue laser light of 350 to 500 nm and especially around 400 nm (for example, 405 nm), enabling recording at low power, suppres... | 02/15/2011 |
| 7771915 | Two-photon absorbing optical recording material and two-photon absorbing optical recording and reproducing method A two-photon absorbing optical recording material comprising at least one two-photon absorbing compound and a recording component is provided. Recording is made on it by utilizing the two-photon absorption of the two-photon absorbing compound in the material, and th... | 08/10/2010 |
| 7727706 | Recording method for dye-based recordable optical recording medium A recording method for a dye-based recordable optical recording medium including recording shortest marks on a recording layer containing a dye formed on a substrate having a guide groove using one pulse beam, and recording second shortest marks or still longer mark... | 06/01/2010 |
| 7608384 | Two-photon fluorescent ternary optical data storage Ternary optical data storage method and apparatus for Write Once Read Many Times (WORM) optical data storage with two-photon fluorescent writing and readout. The data storage capacity is limited by the optical resolution of a system. In CD/DVD systems, an increase i... | 10/27/2009 |
| 7504197 | Optical information recording medium An optical information recording medium containing a substrate having provided thereon a recording layer capable of recording information by laser beam irradiation, wherein the recording layer contains a dye represented by the following general formula (I): | 03/17/2009 |
| 7435529 | Photosensitive composition and image recording method using the same A photosensitive composition comprising: a sensitizing dye represented by the formula (I) defined herein, in which Z represents a substituted divalent linking group forming a 5-membered or 6-membered ring, provided that a total volume of substituents arranged on the... | 10/14/2008 |
| 7422837 | Photosensitive composition A photosensitive composition comprising (i) at least one titanocene compound, (ii) a pyridine compound having a structure represented by formula (1) defined in the specification or a cyan compound having a structure represented by formula (3) defined in the specific... | 09/09/2008 |
| 7396634 | Photosensitive composition A photosensitive composition comprising: a sensitizing dye represented by the following formula (1): in which A represents an optionally substituted aromatic ring or an optionally substituted hetero ring; X represents an ox... | 07/08/2008 |
| 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 |
| 7381517 | Curable composition and image forming material containing the same A curable composition comprising: (A) an infrared absorber which is a cyanine dye having a structure in which hetero rings are bonded to each other via a methine chain and which has at least one substituent having a structure selected from the group consisting of an... | 06/03/2008 |
| 7369424 | Programmable memory cell and operation method A memory array including a plurality of programmable memory cells, a plurality of column lines and a plurality of row lines is introduced. Each of the programmable memory cells is coupled to corresponding one of the column lines and corresponding one of the row line... | 05/06/2008 |
| 7361449 | Specific dye compound, optical information recording medium comprising specific dye, and information recording method using this optical information recording medium The present invention provides an optical information recording medium comprising a substrate having disposed thereon a recording layer, wherein the recording layer includes a recording dye represented by the following formula (I) or (II): | 04/22/2008 |
| 7351460 | Information recording medium, information recording device, and information recording method An information recording medium includes an insulating member, first and second electrodes formed in one plane of the insulating member, and a conductive layer having an electrochromic material providing continuity with the first and second electrodes. A gap between... | 04/01/2008 |
| 7344823 | Transient optical state change materials useful in copy-protected compact discs A copy-protected optical medium comprising transient optical state change security materials that demonstrating an optical state change when exposed to the wavelengths of from about 770 nm to about 830 nm. ... | 03/18/2008 |
| 7341820 | Optical information recording medium The present invention is an optical information recording medium comprising a substrate having disposed in an order thereon a recording layer, an interlayer, and a cover layer, wherein recording and reproduction are carried out by the irradiation with a laser light ... | 03/11/2008 |
| 7332260 | Naphthopyrans annelated in C5-C6, their preparation and compositions and (CO)polymer matrices containing them The present invention relates to novel compounds of the naphthopyran type which have an annelated carbocycle in position 5,6. These compounds are of formula (I) given below: in which A is an alicyclic ring which ... | 02/19/2008 |
| 7332257 | Composition for optical film, and optical film A composition for an optical film comprising a stabilized cyanine dye and a quencher compound, wherein the stabilized cyanine dye comprises a cation and a quencher anion, and the cation is selected from the group consisting of compounds of the following formulae (I)... | 02/19/2008 |
| 7317577 | Methods for producing a black matrix on a lenticular lens An opaque matrix that defines transparent apertures may be formed on a lenticular lens by applying an infrared radiation sensitive material to the flat surface of the lenticular lens, projecting infrared radiation through the lenticular lens onto the infrared radiat... | 01/08/2008 |
| 7303615 | Colorant material, and water dispersion, ink, ink tank, recording unit, recording apparatus and recording method using the same There is provided a colorant material comprising a compound represented by at least one of the following general formulas (1) and (2) as a first colorant compound and at least one of a water insoluble triphenylmethane compound and a water insoluble xanthene compound... | 12/04/2007 |
| 7299535 | Methods for making data storage media and the resultant media Methods for forming data storage media and the media formed thereby are disclosed herein. In one embodiment, the method for forming a data storage media, comprises: injection molding a substrate comprising surface features, wherein said surface features have greater... | 11/27/2007 |
| 7294446 | Digital analog recording using near field optical imaging A data storage device and method of making the storage device wherein a digital and analog image may be stored thereon. The storage device includes a photosensitive layer capable of retaining an optical image thereon, which may be written in a digital format that ca... | 11/13/2007 |
| 7282320 | Apparatus for three-dimensional optical data storage and retrieval A three dimensional optical data storage and retrieval system that includes a three dimensional optical data storage medium and an apparatus for providing access to data stored on the medium. The data storage medium includes an optical data storage material which ei... | 10/16/2007 |
| 7275252 | Cell phone or other portable handset containing microminiature optical disc drive A microminiature optical disc drive is mounted in a cell phone or other handheld portable device to provide a large data source for playing games, movies and other digital content on the device. The optical disc drive is manufactured to an extremely small form facto... | 09/25/2007 |
| 7270866 | Piracy-resistant data leasing system and method The present invention discloses the data storage medium enabling subsequent alteration by a user or user's data rendering system in order to enforce the restrictive covenants of the data usage agreement. The present invention also discloses the data rendering system... | 09/18/2007 |
| 7244548 | Photopolymerizing composition and photopolymerizing recording medium manufactured using the same and used to manufacture 3D optical memory having ultra-high information storage capacity A photopolymerizing composition and a photopolymerizing recording medium manufactured using the composition, wherein the photopolymerizing composition contains: 1.0-99.0% by weight of at least one kind of polymerizable compound; 0.05-0.5% by weight of at least one k... | 07/17/2007 |
| 7238460 | Optical recording medium, production method thereof and method of using same Disclosed is an optical recording medium, comprising a polymer alloy forming a phase-separated domain structure of a coating object, and a volatile substance interacting with the polymer alloy. The volatile substance in a vapor state is deposited on the surface of s... | 07/03/2007 |
| 7226637 | Manufacturing method for multilayer fluorescent information carriers An information layer for an optical information storage medium is formed in a centrifuge. A photopolymerizable composition is applied to a solid base having a relief pattern, and a flexible, transparent film layer is applied on top of the composition. The three are ... | 06/05/2007 |
| 7223520 | Limited play optical media device with barrier layers The present disclosure relates to a limited play optical storage media and a method for limiting access to data thereon. This storage media includes a first substrate; a reflective layer; a data storage layer disposed between said first substrate and said reflective... | 05/29/2007 |
| 7220535 | Marking and authenticating articles Disclosed herein are methods and apparatus for providing markings upon objects, including the read side of an optical information media, where the markings do not substantially interfere with object, including the use of the optical information media. This invention... | 05/22/2007 |
| 7193963 | Method for inputting information into a data storage medium that is optically recordable and readable In a method of entering information into an optically writable and readable data storage medium having a polymer film which can be changed locally by heating in order to store information and to which there is assigned an absorber dye (34) which is set up to ... | 03/20/2007 |
| 7175086 | Authentication system, data device, and methods for using the same An authentication system may comprise: a first light source, a second light source, and at least three optically filtered light sensing devices. The first light source can have a first light source spectral distribution and can be capable of providing sufficient exc... | 02/13/2007 |
| 7175877 | Film, optical memory material with the film, and method for producing the film Disclosed is a film comprising PMMA and a fluorescent substance having a xanthene skeleton and a lactone ring and/or a fluorescent substance having a xanthene skeleton and a group —COOR, where R represents a hydrogen atom or a substituent, capable of forming an in... | 02/13/2007 |
| 7158273 | Holographic data memory A holographic data storage medium has a polymer film which is set up as a storage layer whose refractive index can be changed locally by heating. The polymer film is set up for the storage of optical phase information via the local optical path length of the polymer... | 01/02/2007 |
| 7152322 | Toner supply roller A toner supply roller comprises a metallic core shaft and an electrically conductive elastic layer formed to surround the outer surface of the shaft. The conductive elastic layer is formed of open-cell polyurethane foam. The polyurethane foam is impregnated with an ... | 12/26/2006 |
| 7129019 | Optical information recording medium The present invention provides an optical information recording medium that includes a substrate including a groove with a track pitch of 200 to 400 nm and a groove depth of 20 to 150 nm and having successively disposed thereon a light reflecting layer, a recording ... | 10/31/2006 |
| 7125578 | Photoinduced charge-transfer materials for nonlinear optical applications A method using polyelectrolyte self-assembly for preparing multi-layered organic molecular materials having individual layers which exhibit ultrafast electron and/or energy transfer in a controlled direction occurring over the entire structure. Using a high molecula... | 10/24/2006 |
| 7125644 | Systems and methods for storing data on an optical disk Optical disks include machine readable data that is written with dye that is invisible to the naked eye and a laser-imagable coating that forms marks that are visible to the naked eye. ... | 10/24/2006 |
| 7101655 | Method for increasing fluorescent signal of optical disks with fluorescent reading and resultant discs A fluorescent composition for use with single-layer and multilayer optical discs for CD ROM, DVD and WORM type devices with fluorescent reading is disclosed. The composition comprises a fluorescent dye, film-forming polymer, plasticizer, surfactant and light stabili... | 09/05/2006 |
| 7099110 | Dead on demand disk technology The present invention relates to a system and method for permanently and generally instantaneously destroying at least the data contained on magnetic data storage media upon the occurrence of certain events. Unauthorized access to data stored on magnetic media is pr... | 08/29/2006 |
