Patents by Inventor Steven F. Hubbard
Steven F. Hubbard has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 7508499Abstract: A method for imparting tags to a media article, comprising: modifying predetermined locations on the article to change a surface energy of the predetermined locations, applying the tags to a surface of the article, and retaining the tags in the modified predetermined locations while the tags are removed from unmodified regions.Type: GrantFiled: March 2, 2005Date of Patent: March 24, 2009Assignee: General Electric CompanyInventors: Radislav Alexandrovich Potyrailo, Marc Brian Wisnudel, Steven F. Hubbard
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Patent number: 7081496Abstract: The present invention relates to methods to improve the dampening characteristics of compositions and the improved compositions. The compositions made by the method comprises a polymer system selected from the group consisting of immiscible polymer blends, miscible polymer blends, copolymers, thermoplastic polymers and thermosetting polymers, and a block copolymer comprising: at least one block derived from aromatic vinyl units and at least one block derived from at least isoprene and a vinyl aromatic monomer and optionally butadiene, and having a glass transition temperature of at least 10° C.Type: GrantFiled: November 21, 2002Date of Patent: July 25, 2006Assignee: General Electric CompanyInventors: Steven F. Hubbard, Sai-Pei Ting
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Patent number: 6944115Abstract: 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 media comprises: a substrate comprising a fluorescent colorant and plastic, wherein the substrate has a fluorescent color emission wavelength which is not equal to the readback laser wavelength.Type: GrantFiled: January 19, 2001Date of Patent: September 13, 2005Assignee: General Electric CompanyInventors: Curtis Cradic, Steven R. Peak, Connie J. Bland, Steven F. Hubbard
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Patent number: 6771578Abstract: One method for producing a data storage media, comprises: molding a material comprising plastic and a fluorescent material to form a substrate, and disposing a data layer on the substrate. The substrate has a transmissivity of about 85% or less at a readback laser wavelength when traversing a 1.2 mm thick colored substrate, and the has a fluorescent color emission wavelength which is not equal to the readback laser wavelength.Type: GrantFiled: March 13, 2003Date of Patent: August 3, 2004Assignee: General Electric CompanyInventors: Curtis Cradic, Steven R. Peak, Connie J. Bland, Steven F. Hubbard
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Publication number: 20040115421Abstract: A method for imparting tags to an optical article comprising modifying predetermined locations on the surface of the optical article to change the surface energy of the predetermined locations, applying the tags to the whole surface of the optical article in a uniform film, and retaining the tag in the modified predetermined locations while the tag is removed from unmodified regions. The method further comprising subjecting the optical article to a spinning motion that produces centrifugal forces and retaining the tags in modified predetermined location while the tags are removed from unmodified regions by the centrifugal forces.Type: ApplicationFiled: December 12, 2002Publication date: June 17, 2004Inventors: Radislav Alexandrovich Potyrailo, Marc Brian Wisnudel, Steven F. Hubbard
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Publication number: 20040022986Abstract: Limited-play optical medium with improved shelf stability are formed from a plurality of layers, including in sequence: (a) a first substrate layer; (b) a data layer; (c) a reflective layer; (d) a reactive layer comprising a dye having a reduced state and an oxidized state and further comprising an oxidized form of a reducing agent effective to convert the dye from the oxidized state to the reduced state, and (e) a second substrate layer. The dye in the reduced state is substantially transparent to light of wavelengths used to read the optical medium, and the dye in the oxidized state absorbs light of wavelengths used to read the optical medium. The reflective metal layer is formed from a metal or metal alloy that is not significantly oxidized by the oxidized form of the reducing agent. For example, the reflective metal layer is suitably formed from silver or gold.Type: ApplicationFiled: July 23, 2002Publication date: February 5, 2004Inventors: Hendrik T. van de Grampel, Jan Pleun Lens, Marc B. Wisnudel, Daniel Olson, Joe Parker, Emil Georgiev, Steven F. Hubbard
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Publication number: 20030152774Abstract: One method for producing a data storage media, comprises: molding a material comprising plastic and a fluorescent material to form a substrate, and disposing a data layer on the substrate. The substrate has a transmissivity of about 85% or less at a readback laser wavelength when traversing a 1.2 mm thick colored substrate, and the has a fluorescent color emission wavelength which is not equal to the readback laser wavelength.Type: ApplicationFiled: March 13, 2003Publication date: August 14, 2003Inventors: Curtis Cradic, Steven R. Peak, Connie J. Bland, Steven F. Hubbard
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Publication number: 20030125462Abstract: The present invention relates to methods to improve the dampening characteristics of compositions and the improved compositions. The compositions made by the method comprises a polymer system selected from the group consisting of immiscible polymer blends, miscible polymer blends, copolymers, thermoplastic polymers and thermosetting polymers, and a block copolymer comprising: at least one block derived from aromatic vinyl units and at least one block derived from at least isoprene and a vinyl aromatic monomer and optionally butadiene, and having a glass transition temperature of at least 10° C.Type: ApplicationFiled: November 21, 2002Publication date: July 3, 2003Inventors: Steven F. Hubbard, Sai-Pei Ting
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Patent number: 6521704Abstract: The present invention relates to methods to improve the dampening characteristics of compositions and the improved compositions. The compositions made by the method comprises (a) a polymer system selected from the group consisting of immiscible polymer blends, miscible polymer blends, copolymers, thermoplastic polymers and thermosetting polymers, and (b) a block copolymer comprising: (i) at least one block derived from aromatic vinyl units and (ii) at least one block derived from at least isoprene and a vinyl aromatic monomer and optionally butadiene, and having a glass transition temperature of at least 10° C. In a preferred embodiment, the block copolymer comprises at least one block of polystyrene and at least one block derived from isoprene, styrene and butadiene, and the polymer system comprises at least one polyamide resin.Type: GrantFiled: June 13, 2000Date of Patent: February 18, 2003Assignee: General Electric CompanyInventors: Steven F. Hubbard, Sai-Pei Ting
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Patent number: 6436503Abstract: This invention relates to data storage media, and more particularly to data storage media having both a data storage layer and an adjacent transparent overlayer wherein the data storage layer is capable of reflecting an energy field incident upon said transparent overlayer prior to being incident upon said data layer. Specifically, this invention relates to data storage media having thin transparent polyestercarbonate overlayers.Type: GrantFiled: November 15, 1999Date of Patent: August 20, 2002Assignee: General Electric CompanyInventors: Curtis R. Cradic, Steven F. Hubbard, Cornelis Jan Maria Rijken
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Publication number: 20020072559Abstract: 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 media comprises: a substrate comprising a fluorescent colorant and plastic, wherein the substrate has a fluorescent color emission wavelength which is not equal to the readback laser wavelength.Type: ApplicationFiled: January 19, 2001Publication date: June 13, 2002Inventors: Curtis Cradic, Steven R. Peak, Connie J. Bland, Steven F. Hubbard
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Publication number: 20010044003Abstract: Disclosed is an article for the optical storage of data having low birefringence prepared from a mixture of a polycarbonate and a cycloaliphatic polyester. The article may optionally have stabilization and mold release additives that retain transparency, color and processability.Type: ApplicationFiled: February 23, 2001Publication date: November 22, 2001Applicant: General Electric Co.Inventors: Robert R. Gallucci, Frank A. Hoefflin, Steven F. Hubbard, Ramesh Hariharan, Irene Dris
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Patent number: 6221556Abstract: Disclosed is an article for the optical storage of data having low birefringence prepared from a mixture of a polycarbonate and a cycloaliphatic polyester. The article may optionally have stabilization and mold release additives that retain transparency, color and processability.Type: GrantFiled: March 5, 1999Date of Patent: April 24, 2001Assignee: General Electric CompanyInventors: Robert R. Gallucci, Frank A. Hoefflin, Steven F. Hubbard, Ramesh Hariharan, Irene Dris
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Patent number: 6022942Abstract: There is provided herein an optical storage media which has low VBR. In a preferred embodiment, there is provided an optical disk comprising a genus of copolycarbonates, including copolyestercarbonates, which have excellent physical and optical properties. Said copolycarbonates have proportions of structural units which fall within a specific composition range, and said range defines certain materials, a large percentage of which can be molded into optical disks having the desired optical properties, including low VBR.Type: GrantFiled: January 5, 1999Date of Patent: February 8, 2000Assignee: General Electric CompanyInventors: Kenichi Ishiwa, Henricus H. M. van Hout, Ali Dhinojwala, Niles R. Rosenquist, Paul D. Sybert, Steven F. Hubbard, Paul C. Raymond, III, Joseph A. King, Jr., Gary C. Davis