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| Number | Title | Issue Date |
| 7968166 | Optical recording system Systems and method for optically recording data. One system comprises a disc comprising a substrate and a markable coating on said substrate, the markable coating having a thickness less than 1 μm and comprising: a matrix; and a color-forming agent included in the ... | 06/28/2011 |
| 7910192 | 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 ... | 03/22/2011 |
| 7360228 | Multi-stack optical data storage medium and use of such medium A multi-stack optical data storage medium, for recording using a focused radiation beam having a wavelength λ and entering through an entrance face of the medium, has a first substrate having a first guide groove formed therein, and a first recording stack includin... | 04/15/2008 |
| 7348079 | Magnetic recording medium A magnetic recording medium is provided that has on a non-magnetic support, in order, a radiation-cured layer formed by curing a layer containing a radiation curing compound by exposure to radiation, a lower layer having a non-magnetic powder and/or a magnetic powde... | 03/25/2008 |
| 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 |
| 7238461 | Optical information-recording medium, novel oxonol compound and method of recording information An optical information-recording medium which contains a dye having at least two chromophores bonded to each other without any conjugated bond intervening between those chromophores. ... | 07/03/2007 |
| 7224665 | Optical recording medium its manufacturing method and injection molding apparatus In an optical disc in which an information signal is recorded/reproduced by irradiating a laser beam to a disc substrate 1 in which an information signal portion 1c has been provided on one principal plane from the side where the information sig... | 05/29/2007 |
| 7194751 | Optical information medium An optical information medium comprises a pair of discs which are bonded to each other, an optical recording layer provided on at least one of the discs, and a reflecting layer formed on an upper side of the optical recording layer. The optical information medium fu... | 03/20/2007 |
| 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 |
| 7087453 | Method and device for the production of a semiconducting and/or electroluminescence-displaying organic layered structure Method of manufacturing a semiconducting organic laminated structure, for use in an electronic circuit, in particular a logic and/or memory circuit, wherein a substrate is coated with a solution or dispersion containing a small proportion of an organic composite and... | 08/08/2006 |
| 7057252 | Optical information recording medium The optical information recording medium of the present invention includes an information layer provided on a substrate. The information layer includes: a recording layer with respect to which information can be recorded and reproduced through irradiation with a las... | 06/06/2006 |
| 7037413 | Optical information recording medium, producing method thereof and method of recording/erasing/reproducing information The present invention provides an optical information medium having excellent weather resistance and repeating characteristics. The optical information medium has a barrier layer between a protective layer and a recording layer. The barrier layer includes GeN or GeO... | 05/02/2006 |
| 6984434 | Recordable digital video disc A recordable digital video disc preferably employable for information recording method using a laser beam having a wavelength of 600–700 nm, composed of a transparent disc substrate provided with a spiral pregroove, a recording dye layer placed in the pregroove, a... | 01/10/2006 |
| 6971428 | Device for vacuum-pressing of DVD substrates The invention relates to a device for vacuum-pressing of disk-shaped substrates, in particular DVD substrates into a finished DVD, wherein the device has a vacuum chamber with two substrate holders and an intermediate element that can be displaced inside the vacuum ... | 12/06/2005 |
| 6967050 | Optical recording medium and a method of manufacturing the same Constructed is an optical recording medium which is so formed as to have excellent surface flatness and with respect to which information is recorded or reproduced with the use of a near-field optical system. The optical recording medium is one which performs at lea... | 11/22/2005 |
| 6961302 | Method and structure for intensifying track seeking signals from an optical disk A method and structure for intensifying track seeking signals from an optical disk, in particular, a recordable digital versatile disk (DVD-R). With the addition of an optical correction layer between a dye material layer and a reflection layer inside the DVD-R, tra... | 11/01/2005 |
| 6953514 | Method and device for assembling substrates A method and apparatus for joining at least two substrates together, especially to form an optical data carrier, are provided. Substrates are disposed in a spaced-apart manner between two plates that are disposed opposite from, and are movable relative to, one anoth... | 10/11/2005 |
| 6951678 | Mouth guard-preparing sheet To provide a mouth guard-preparing sheet from which a mouth guard to be used for preventing teeth and their surrounding tissues from a trauma occurred mainly in sports and having a uniform thickness between the right and left sides thereof can be prepared, without c... | 10/04/2005 |
| 6899937 | Optical disc An optical disc includes a substrate having micro-embossments, in which flat portions referred to as lands, and track guides, referred to as hills, and which protrude from the surfaces of the flat portions are formed. A reflective layer is formed on the substrate, a... | 05/31/2005 |
| 6887548 | Optical information recording medium An optical information recording medium includes a substrate having a thickness of approximately 1.0 mm to 1.2 mm, with a spiral pre-groove being formed at a predetermined area on the substrate excluding a central hole and an outer periphery. Successively disposed o... | 05/03/2005 |
| 6869655 | Optical recording medium An optical recording medium in which deposition of impurities or damage to a surface of the medium illuminated by the light for signal recording and/or reproduction is to be prevented from occurring. An amine salt compound of perfluoropolyether having terminal carbo... | 03/22/2005 |
| 6844042 | Optical recording media for air-incident optical recording An air-incident optical recording medium for use with flying heads has a system of layers, which thermally isolate the disk surface from the active, recording layer. ... | 01/18/2005 |
| 6811850 | Optical information medium and its fabrication process An optical information medium comprises a supporting substrate 20, an information recording surface 4 on the supporting substrate 20 and a light-transmitting layer 2 on the information recording surface 4. Recording light and/or re... | 11/02/2004 |
| 6740607 | Substrate with stretch and heat sealing properties to make a multidirectional restraint module design The invention is directed to coating a plurality of polyurethane films onto a stretchable knit fabric substrate and heat sealing such substrates together to yield an air curtain or air bag having improved air-holding properties. ... | 05/25/2004 |
| 6689445 | Information recording medium and method of manufacturing the same An information recording medium that is excellent in repeated-rewriting performance and is deteriorated less in crystallization sensitivity with time is provided, with respect to which high density recording can be carried out. A method of manufacturing t... | 02/10/2004 |
| 6660867 | Metal complex type squarylium compounds and optical recording media made by using the same An object of the present invention is to provide a material having spectroscopic properties, light resistance, solubility and thermal decomposition properties suitable for recording for DVD-R. More specifically, the present invention provides squarylium c... | 12/09/2003 |
| 6641890 | Cartridge-contained recording medium In a magneto-optical disc contained in a cartridge, a first dielectric layer, signal recording layer, second dielectric layer, and light reflecting layer are sequentially stacked on a substrate having formed grooves, and a first protective layer, print la... | 11/04/2003 |
| 6639700 | Hologram recording medium, hologram recording/reconstructing apparatus, and hologram recording/reconstructing method A hologram recording medium comprises a hologram recording layer for recording a hologram, and a wedge substrate for varying the propagating direction of a reference light and an object light incident upon the hologram recording medium. By rotating the ho... | 10/28/2003 |
| 6638594 | Rewritable optical information recording medium A description is given of a rewritable optical information medium comprises a substrate (1), a first dielectric layer (2), a phase-change recording layer on the basis of AgaInbSbcTed or GeaInbSbcTed (3), a second dielectric layer (4), and a metal mirror l... | 10/28/2003 |
| 6541093 | Optical recording medium and method for fabricating the same An optical recording medium and a method for fabricating the same are provided, which enable overwriting at high density. The optical recording medium including a dielectric layer, a recording layer, and a reflecting layer on a substrate, is characterized... | 04/01/2003 |
| 6514591 | Optical information recording medium An optical information recording medium comprises a substrate and a multilayered film formed on the substrate, the multilayered film comprising a first information layer, a separating layer, and a second information layer in this order from the side of th... | 02/04/2003 |
| 6449241 | Optical disk An optical disk having an improved structure is provided so that about 15 gigabytes or more can be recorded on each information recording surface. The optical disk includes at least one information substrate having an incident surface where light for reco... | 09/10/2002 |
| 6312781 | Disc-shaped recording medium with a protective film The present invention provides an apparatus and method for forming a protective film on a disc-shaped recording medium including providing a turnable having a center aperture, setting the disc-shaped recording medium having a center opening on the turnabl... | 11/06/2001 |
| 6287662 | Optical data recording medium An optical data recording medium in which the shape of the dye spectrum of a dye film having a thin film thickness per unit absorbance is controlled so as to enable improvements in the recording speed during high speed recording, jitter, and modulation, w... | 09/11/2001 |
| 6246656 | Reduced thickness of a light transmissive layer for a high density optical disc An optical recording medium is provided which achieves a higher recording capacity. This optical recording medium includes a base formed of thermoplastic resin which has a thickness ranging from between approximately 0.3 to 1.2 mm, a guide groove formed o... | 06/12/2001 |
| 6228440 | Perishable media information storage mechanism and method of fabrication A perishable media information storage mechanism, including a substrate, a data layer for recording data thereon the information storage mechanism, a reflective layer, and a protective lacquer coating. The data layer includes a material responsive to at l... | 05/08/2001 |
| 6071588 | Optical recording medium An optical recording medium has a high hardness layer, first dielectric layer, recording layer, second dielectric layer and reflective layer. The hardness of the high hardness layer is larger than the hardness of the first dielectric layer, and the thickn... | 06/06/2000 |
| 5912061 | UV-ray setting resin and a method for manufacturing a magneto-optical disk by the use of the UV-ray setting resin A high quality magneto-optical disk which has the protective coating being excellent in the lubricity, the property of sliding and a long-term reliability includes a UV-ray resin composition comprising photo polymerizable prepolymer, photo polymerization ... | 06/15/1999 |
| 5851621 | High-capacity storage media The invention relates to an optical recording medium comprising a substrate, a reflecting layer and a recording layer, which recording layer consists essentially of a dye of the formula (I), ##STR1## in which R1 and R6 are hydro... | 12/22/1998 |
| 5753334 | Optical recording medium An optical recording medium capable of recording reproducing and erasing information wherein a pulsating phenomenon where dielectric layer provided on the top and bottom of the recording thing film layer are thermally expanded, and contracted through the ... | 05/19/1998 |
