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| Number | Title | Issue Date |
| 7425358 | Copolycarbonates having improved flowability An optical data storage comprising a thermoplastic copolycarbonate is disclosed. The copolycarbonate contains at least one unit derived from dihydroxydiphenyl ether and at least one unit derived from at least one member selected from the group consisting of 4,4′di... | 09/16/2008 |
| 7351461 | Articles comprising benzopyran colorants, method of manufacture, and method of use An article comprising the compound of Formula (I) wherein X is hydrogen or a radical of Formula (II), R1 independently at each occurrence is a C1-C20 aliphatic radical, a C3-C | 04/01/2008 |
| 7332560 | Thermoplastic molding compositions having reduced water absorption A thermoplastic molding composition comprising polycarbonate and at least one (co)polyformal is disclosed. Characterized by its low water absorption the composition is particularly suitable for producing molded articles, especially optical data carriers, such as com... | 02/19/2008 |
| 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 |
| 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 |
| 7202292 | Colored polymeric resin composition with 1,8-diaminoanthraquinone derivative, article made therefrom, and method for making the same In one embodiment, a colored polymeric resin composition, comprises: a polymeric resin; and a 1,8-diaminoanthraquinone derivative having a purity of greater than or equal to about 90 wt % and having a Formula (VIII): | 04/10/2007 |
| 7179551 | Poly(arylene ether) data storage media A storage media comprises: a substrate comprising a plastic resin portion, wherein to plastic resin portion comprises poly(arylene ether) and a styrene material selected from the group consisting of polystyrene, styrenic copolymer(s), and reaction products and combi... | 02/20/2007 |
| 7169615 | Method of authenticating polymers, authenticatable polymers, methods of making authenticatable polymers and authenticatable articles, and articles made there from Disclosed is a method of authenticating that a test polymer is an authenticatable polymer, wherein the authenticatable polymer has an authentication signal and comprises a substrate polymer and an optically variable tag, the optically variable tag having a fluoresce... | 01/30/2007 |
| 7132149 | Data storage medium and method for the preparation thereof A data storage medium includes a haze-prevention layer between a heat-resistant thermoplastic substrate and a reflective metal layer. The haze-prevention layer includes a metal having a tensile modulus of at least about 15×106 pounds per square inch. The... | 11/07/2006 |
| 7128959 | Reflective article and method for the preparation thereof A reflective article useful, for example, in automotive headlights includes a haze-prevention layer between a heat-resistant thermoplastic substrate and a reflective metal layer. The haze-prevention layer includes a metal having a tensile modulus of at least about 1... | 10/31/2006 |
| 7094516 | Benzobisazole compound and optical recording medium containing the compound An optical recording medium having an organic dye layer as a recording layer on a substrate, wherein at least one benzobisazole-based compound represented by a general formula (1) is contained in the recording layer: | 08/22/2006 |
| 7082093 | Optical data storage system having combined fluorescent three-dimensional information carrier A general optical storage system (OSS) contains an optical drive and a fluorescent multilayer disc (FMLD), which can be realized as a multilayer structure with data storage in fluorescent spots like pits or spiral grooves, divided by layers, transparent to reading a... | 07/25/2006 |
| 7078083 | Optical recording film, method for manufacturing the same, optical recording medium, information recording/reproducing device, computer system and video signal recording/reproducing system An optical recording film in the form of a monomolecular layer, includes chemisorptive molecules that are chemically bonded by covalent bonding to a surface of a substrate. The optical recording film has the property that, when irradiated with polarized light, a lon... | 07/18/2006 |
| 7075163 | Electromagnetic noise suppressor, semiconductor device using the same, and method of manufacturing the same In a semiconductor bare chip (57) on the front surface whereof is formed an integrated circuit, a magnetic loss film 55 is formed on the back surface of that semiconductor bare chip. ... | 07/11/2006 |
| 7067609 | Polycarbonate resin for optical disk substrate and optical disk substrate The present invention relates to a polycarbonate resin that has a viscosity average molecular weight of from 10,000 to 17,000 and has characteristic features in an iron content, a free total phenol content, a content of a releasing agent, a fraction of hydroxyl end ... | 06/27/2006 |
| 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 |
| 6957444 | Optical disk and method of producing the same An optical disk includes a reflective layer, a recording layer, an optical-transparent bonding layer and an optical transparent sheet laminated on a substrate in this order. The total thickness of the optical-transparent bonding layer and the optical transparent she... | 10/18/2005 |
| 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 |
| 6952391 | Optical recording medium having dual information surfaces A reproduction apparatus is provided for reproducing information stored on an optical medium. The apparatus includes a light source for illuminating the optical medium, the optical medium having at least one surface containing information stored thereon; a focusing ... | 10/04/2005 |
| 6949279 | Data storage media containing transparent polycarbonate blends The invention relates to transparent blends of polymers suitable for use in optical articles; the polymers contain residues of BCC and its derivatives, and have properties particularly suited for use in high density optical data storage media. The polymers further c... | 09/27/2005 |
| 6947366 | Optical recording medium having dual information surfaces A reproduction apparatus is provided for reproducing information stored on an optical medium. The apparatus includes a light source for illuminating the optical medium, the optical medium having at least one surface containing information stored thereon; a focusing ... | 09/20/2005 |
| 6944115 | Colored data storage media The colored data storage media comprises a substrate comprising colorant and plastic, wherein the substrate has a transmissivity of about 85% or less, at a readback laser wavelength, when traversing a 1.2 mm thick colored substrate (disk). Alternatively, the storage... | 09/13/2005 |
| 6936324 | Data storage media containing transparent polycarbonate blends The invention relates to transparent blends of polymers suitable for use in optical articles; the polymers contain residues of BCC and its derivatives, and have properties particularly suited for use in high density optical data storage media. The polymers further c... | 08/30/2005 |
| 6934238 | Optical recording medium having dual information surfaces A reproduction apparatus is provided for reproducing information stored on an optical medium. The apparatus includes a light source for illuminating the optical medium, the optical medium having at least one surface containing information stored thereon; a focusing ... | 08/23/2005 |
| 6933034 | Data storage media containing transparent polycarbonate blends The invention relates to transparent blends of polymers suitable for use in optical articles; the polymers contain residues of BCC and its derivatives, and have properties particularly suited for use in high density optical data storage media. The polymers further c... | 08/23/2005 |
| 6934237 | Optical recording medium having dual information surfaces A reproduction apparatus is provided for reproducing information stored on an optical medium. The apparatus includes a light source for illuminating the optical medium, the optical medium having at least one surface containing information stored thereon; a focusing ... | 08/23/2005 |
| 6899939 | Polymer mixtures A thermoplastic molding composition especially suitable for preparing optical data carriers is disclosed. The composition contains polycarbonate resin, at least one mold release agent and at least one phosphite having a defined structural formula. The optical data c... | 05/31/2005 |
| 6887573 | Polycarbonate polyester articles with enhanced adhesion between outer layer and base substrate An clear coated article formed from a transparent/translucent molding composition comprising a uniform miscible resin blend of a polycarbonate resin and a cycloaliphatic polyester resin, said cycloaliphatic polyester resin comprising the reaction product of an aliph... | 05/03/2005 |
| 6875491 | Polycarbonate composition, write once read many optical disc substrate and write once read many optical disc using same and process for production of write once read many optical disc A polycarbonate composition excellent in both antistatic property and coloring matter coatability containing (a) a polycarbonate obtained by an ester exchange process, and (b) a compound having a molecular weight of from 300 to 8,000 and having any of ester bond, ca... | 04/05/2005 |
| 6858298 | Optical polycarbonate resin molding material An optical polycarbonate resin molding material comprising pellets formed from a polycarbonate resin, wherein the pellets satisfy the following properties (1) and (2): (1) an average of surface areas (hereinafter referred to as “cross sectional areasâ... | 02/22/2005 |
| 6811851 | Process for producing ridgy resin film and recording medium A ridgy resin film made of a resin is formed. On a flat substrate, a first concave and a second concave are formed such as to be spaced a given distance apart from each other. Then, a resin liquid is supplied onto a land being part of the substrate exposed between t... | 11/02/2004 |
| 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 |
| 6723936 | Active energy ray-curing adhesive composition and keypad for a push-button switch An active energy ray-curing adhesive composition is provided that has high curing rate as well as excellent adhesion and bonding workability, and a keypad (11) for push-button switches that has not only high bonding rate of a hard resin keytop (20) to ... | 04/20/2004 |
| 6716510 | Polycarbonate resin for optical disk substrate and optical disk substrate The present invention relates to a polycarbonate resin that has a viscosity average molecular weight of from 10,000 to 17,000 and has characteristic features in an iron content, a free total phenol content, a content of a releasing agent, a fraction of hydroxyl end ... | 04/06/2004 |
| 6710154 | Polycarbonate substrates A method for producing polycarbonate based on 1,1-bis(4-hydroxyphenyl)-3,3,5-trimethyl cyclohexanone and 4,4-(metaphenylene diisopropyl) diphenol is disclosed. The method is characterized in that the recovery and/or further processing of the polycarbonate is perform... | 03/23/2004 |
| 6706847 | Copolycarbonate compositions, and related articles and processes A thermoplastic composition is described, based on a copolycarbonate which includes at least two structural units. Structure I is usually a conventional carbonate based on bisphenol A, while structure II is a bisphenol carbonate which includes branched or linear gro... | 03/16/2004 |
| 6623828 | 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 manufactured by preparing two stampers; simultaneously forming... | 09/23/2003 |
| 6599385 | Manufacturing method of a multi-layer optical information recording carrier A manufacturing method of a multi-layer optical information record carrier, which has a plurality of layers of reflecting surfaces with pits for recording information. According to the method, a reflective layer is first coated on a stamper with a pit pat... | 07/29/2003 |
| 6596368 | Organic substrate having optical layers deposited by magnetron sputtering and method for preparing it An organic substrate having optically-active layers deposited by magnetron sputtering and a preparation process for it are provided. Gas pressure used for carrying out better adhesion by sputtering is high, comprised between 0.8 and 5.0 Pa. Sputtering is ... | 07/22/2003 |
