Patents by Inventor Verghese Thomas
Verghese Thomas 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: 7157129Abstract: Embodiments of highly colored optical discs and methods for making the same are disclosed. For examples, specification discloses a DVD composition that comprises a bonding layer and a data layer disposed there between, wherein at least one of the substrates is a read side substrate comprising a highly colored polycarbonate comprising an optical quality polycarbonate resin and a colorant formulation in the range of 0.1 to 0.4 wt % of the highly colored polycarbonate.Type: GrantFiled: September 22, 2004Date of Patent: January 2, 2007Assignee: General Electric CompanyInventors: Vandita Pai-Paranjape, Philippe Schottland, Verghese Thomas
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Patent number: 6916519Abstract: Embodiments of optical discs and methods for making the same are disclosed. In one embodiment, the optical disc comprises: at least two plastic substrates comprising a bonding layer and a data layer disposed therebetween, wherein at least one of the substrates is a read side substrate comprising greater than or equal to about 0.05 wt % colorant, based upon the total weight of the read side substrate, and wherein the read side substrate has a UV Bonding Index of greater than or equal to about 0.5. One method for making the optical disc comprises: forming a first plastic substrate comprising greater than or equal to about 0.05 wt % colorant, based upon the total weight of the first plastic substrate, wherein a UV Bonding Index of the first plastic substrate is controlled to be greater than or equal to about 0.5, disposing a data layer between the first plastic substrate and a second substrate, bonding the first plastic substrate to the second plastic substrate with a bonding layer, and curing the bonding layer.Type: GrantFiled: September 17, 2002Date of Patent: July 12, 2005Assignee: General Electric CompanyInventors: Vandita Pai-Paranjape, Steven R. Peak, Philippe Schottland, Verghese Thomas, Sharon S. Weis
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Publication number: 20050095715Abstract: A polymer comprising a tagging material is provided wherein the tagging material comprises at least one organic fluorophore dye, or at least one inorganic fluorophore, or at least one organometallic fluorophore, or at least one semi-conducting luminescent nanoparticle, or combination thereof, wherein the tagging material has a temperature stability of at least about 350° C. and is present in a sufficient quantity such that the tagging material is detectible via a spectrofluorometer at an excitation wavelength in a range between about 100 nanometers and about 1100 nanometers. Further embodiments of the present invention include a method for identifying a polymer and an article comprising a polymer wherein the polymer contains the aforementioned tagging material.Type: ApplicationFiled: October 31, 2003Publication date: May 5, 2005Applicant: GENERAL ELECTRIC COMPANYInventors: Steven Hubbard, Radislav Potyrailo, Philippe Schottland, Verghese Thomas
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Publication number: 20050089667Abstract: Embodiments of highly colored optical discs and methods for making the same are disclosed. For examples, specification discloses a DVD composition that comprises a bonding layer and a data layer disposed there between, wherein at least one of the substrates is a read side substrate comprising a highly colored polycarbonate comprising an optical quality polycarbonate resin and a colorant formulation in the range of 0.1 to 0.4 wt % of the highly colored polycarbonate.Type: ApplicationFiled: September 22, 2004Publication date: April 28, 2005Inventors: Vandita Pai-Paranjape, Philippe Schottland, Verghese Thomas
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Patent number: 6673410Abstract: Embodiments of optical discs and methods for making the same are disclosed. In one embodiment, the optical disc comprises: at least two plastic substrates comprising a bonding layer and a data layer disposed therebetween, wherein at least one of the substrates is a read side substrate comprising greater than or equal to about 0.01 wt % colorant, based upon the total weight of the read side substrate, and wherein the read side substrate has a UV Bonding Index of greater than or equal to about 0.5. One method for making the optical disc comprises: forming a first plastic substrate comprising greater than or equal to about 0.01 wt % colorant, based upon the total weight of the first plastic substrate, wherein a UV Bonding Index of the first plastic substrate is controlled to be greater than or equal to about 0.5, disposing a data layer between the first plastic substrate and a second substrate, bonding the first plastic substrate to the second plastic substrate with a bonding layer, and curing the bonding layer.Type: GrantFiled: May 22, 2002Date of Patent: January 6, 2004Assignee: General Electric CompanyInventors: Vandita Pai-Paranjape, Steven R. Peak, Philippe Schottland, Verghese Thomas, Sharon S. Weis
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Publication number: 20030205323Abstract: A method for making limited play optical storage medium for data is provided Said method comprises providing a first substrate and a second substrate; disposing a reactive layer; disposing a reflective layer; and adhering said first substrate to said second substrate such that the layers are disposed between said first substrate and said second substrate. Variations on the arrangement of the layers are provided in the present invention.Type: ApplicationFiled: March 10, 2003Publication date: November 6, 2003Applicant: General Electric CompanyInventors: Karin Ann Ezbiansky, Daniel Robert Olson, Philippe Schottland, Verghese Thomas, Marc Brian Wisnudel
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Publication number: 20030198892Abstract: A limited play optical storage medium for data is provided which comprises a first optically transparent substrate; a reflective layer; a data layer disposed between said substrate and said reflective layer; a reactive layer that optionally comprises a polyhydroxy compound, at least one carrier, and at least one reactive material; and a second substrate wherein the second substrate is optionally a light-absorbing layer with the proviso that the storage medium includes a reactive layer with a polyhydroxy compound, a light-absorbing layer, or a combination thereof.Type: ApplicationFiled: March 18, 2003Publication date: October 23, 2003Applicant: General Electric CompanyInventors: Karin Ann Ezbiansky, Daniel Robert Olson, Philippe Schottland, Larry Takiff, Verghese Thomas, Marc Brian Wisnudel
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Patent number: 6623827Abstract: A colored optical disk and method for making the same are disclosed herein. In one embodiment, the optical disk comprises: a first fully reflective data layer, a first separating layer disposed on a top side of the first fully reflective data layer, a first semi-reflective data layer disposed on a side of the separating layer opposite the first fully reflective data layer, a first resin layer disposed on an upper side the first semi-reflective data layer opposite the separating layer, a second resin layer disposed on a bottom side of said first fully reflective data layer, wherein a reflectivity of the first fully reflective data layer and the first semi-reflective data layer is individually about 18 to about 30%, wherein a difference in the reflectivity between the first fully reflective data layer and the first semi-reflective data layer is less than or equal to about 5%; and wherein at least a portion of the optical disk comprises colorant.Type: GrantFiled: September 17, 2002Date of Patent: September 23, 2003Assignee: General Electric CompanyInventors: Philippe Schottland, Verghese Thomas, Sharon S. Weis, Steven R. Peak
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Publication number: 20030150553Abstract: Embodiments of optical discs and methods for making the same are disclosed. In one embodiment, the optical disc comprises: at least two plastic substrates comprising a bonding layer and a data layer disposed therebetween, wherein at least one of the substrates is a read side substrate comprising greater than or equal to about 0.05 wt % colorant, based upon the total weight of the read side substrate, and wherein the read side substrate has a UV Bonding Index of greater than or equal to about 0.5. One method for making the optical disc comprises: forming a first plastic substrate comprising greater than or equal to about 0.05 wt % colorant, based upon the total weight of the first plastic substrate, wherein a UV Bonding Index of the first plastic substrate is controlled to be greater than or equal to about 0.5, disposing a data layer between the first plastic substrate and a second substrate, bonding the first plastic substrate to the second plastic substrate with a bonding layer, and curing the bonding layer.Type: ApplicationFiled: September 17, 2002Publication date: August 14, 2003Inventors: Vandita Pai-Parajape, Steven R. Peak, Philippe Schottland, Verghese Thomas, Sharon S. Weis
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Publication number: 20030148059Abstract: Embodiments of optical discs and methods for making the same are disclosed. In one embodiment, the optical disc comprises: at least two plastic substrates comprising a bonding layer and a data layer disposed therebetween, wherein at least one of the substrates is a read side substrate comprising greater than or equal to about 0.01 wt % colorant, based upon the total weight of the read side substrate, and wherein the read side substrate has a UV Bonding Index of greater than or equal to about 0.5. One method for making the optical disc comprises: forming a first plastic substrate comprising greater than or equal to about 0.01 wt % colorant, based upon the total weight of the first plastic substrate, wherein a UV Bonding Index of the first plastic substrate is controlled to be greater than or equal to about 0.5, disposing a data layer between the first plastic substrate and a second substrate, bonding the first plastic substrate to the second plastic substrate with a bonding layer, and curing the bonding layer.Type: ApplicationFiled: May 22, 2002Publication date: August 7, 2003Inventors: Vandita Pai-Paranjape, Steven R. Peak, Philippe Schottland, Verghese Thomas, Sharon S. Weis
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Publication number: 20030099806Abstract: A colored optical disk and method for making the same are disclosed herein. In one embodiment, the optical disk comprises: a first fully reflective data layer, a first separating layer disposed on a top side of the first fully reflective data layer, a first semi-reflective data layer disposed on a side of the separating layer opposite the first fully reflective data layer, a first resin layer disposed on an upper side the first semi-reflective data layer opposite the separating layer, a second resin layer disposed on a bottom side of said first fully reflective data layer, wherein a reflectivity of the first fully reflective data layer and the first semi-reflective data layer is individually about 18 to about 30%, wherein a difference in the reflectivity between the first fully reflective data layer and the first semi-reflective data layer is less than or equal to about 5%; and wherein at least a portion of the optical disk comprises colorant.Type: ApplicationFiled: September 17, 2002Publication date: May 29, 2003Inventors: Philippe Schottland, Verghese Thomas, Sharon S. Weis, Steven R. Peak
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Patent number: 6514617Abstract: A polymer comprising a tagging material is provided wherein the tagging material comprises at least one organic fluorophore dye, at least one inorganic fluorophore, at least one organometallic fluorophore, at least one semi-conducting luminescent nanoparticle, or combination thereof, wherein the tagging material has a temperature stability of at least about 350° C. and is present in a sufficient quantity such that the tagging material is detectible via a spectrofluorometer at an excitation wavelength in a range between about 100 nanometers and about 1100 nanometers. Further embodiments of the present invention include a method for identifying a polymer and an article comprising a polymer wherein the polymer contains the aforementioned tagging material.Type: GrantFiled: July 11, 2001Date of Patent: February 4, 2003Assignee: General Electric CompanyInventors: Steven Frederick Hubbard, Radislav Alexandrovich Potyrailo, Philippe Schottland, Verghese Thomas
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Publication number: 20030021998Abstract: A polymer comprising a tagging material is provided wherein the tagging material comprises at least one organic fluorophore dye, at least one inorganic fluorophore, at least one organometallic fluorophore, at least one semi-conducting luminescent nanoparticle, or combination thereof, wherein the tagging material has a temperature stability of at least about 350° C. and is present in a sufficient quantity such that the tagging material is detectible via a spectrofluorometer at an excitation wavelength in a range between about 100 nanometers and about 1100 nanometers. Further embodiments of the present invention include a method for identifying a polymer and an article comprising a polymer wherein the polymer contains the aforementioned tagging material.Type: ApplicationFiled: July 11, 2001Publication date: January 30, 2003Inventors: Steven Frederick Hubbard, Radislav Alexandrovich Potyrailo, Philippe Schottland, Verghese Thomas
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Patent number: 6475589Abstract: Embodiments of optical discs and methods for making the same are disclosed. In one embodiment, the optical disc comprises: at least two plastic substrates comprising a bonding layer and a data layer disposed therebetween, wherein at least one of the substrates is a read side substrate comprising greater than or equal to about 0.05 wt % colorant, based upon the total weight of the read side substrate, and wherein the read side substrate has a UV Bonding Index of greater than or equal to about 0.5. One method for making the optical disc comprises: forming a first plastic substrate comprising greater than or equal to about 0.05 wt % colorant, based upon the total weight of the first plastic substrate, wherein a UV Bonding Index of the first plastic substrate is controlled to be greater than or equal to about 0.5, disposing a data layer between the first plastic substrate and a second substrate, bonding the first plastic substrate to the second plastic substrate with a bonding layer, and curing the bonding layer.Type: GrantFiled: December 17, 2001Date of Patent: November 5, 2002Assignee: General Electric CompanyInventors: Vandita Pai-Paranjape, Steven R. Peak, Philippe Schottland, Verghese Thomas, Sharon S. Weis
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Patent number: 6475588Abstract: A colored optical disk and method for making the same are disclosed herein. The method comprises: disposing a first semi-reflective data layer on a first resin layer, wherein the first resin layer has light transmission at a desired reading wavelength of greater than about 60%; disposing a top side of a first fully reflective data layer on a side of said first semi-reflective data layer opposite said first resin layer, wherein reflectivity of the first fully reflective data layer and the first semi-reflective data layer is individually about 18 to about 30%, and wherein a difference in the reflectivity between the first fully reflective data layer and the first semi-reflective data layer is less than about 5%; disposing a separating layer between said first fully reflective data layer and said first semi-reflective data layer; disposing a second resin layer on a bottom side of said first fully reflective data layer; and adding color to at least a portion of the optical disk.Type: GrantFiled: August 7, 2001Date of Patent: November 5, 2002Assignee: General Electric CompanyInventors: Philippe Schottland, Verghese Thomas, Sharon S. Weis, Steven R. Peak
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Patent number: RE41616Abstract: A polymer comprising a tagging material is provided wherein the tagging material comprises at least one organic fluorophore dye, or at least one inorganic fluorophore, or at least one organometallic fluorophore, or at least one semi-conducting luminescent nanoparticle, or combination thereof, wherein the tagging material has a temperature stability of at least about 350° C. and is present in a sufficient quantity such that the tagging material is detectible via a spectrofluorometer at an excitation wavelength in a range between about 100 nanometers and about 1100 nanometers. Further embodiments of the present invention include a method for identifying a polymer and an article comprising a polymer wherein the polymer contains the aforementioned tagging material.Type: GrantFiled: December 17, 2003Date of Patent: August 31, 2010Assignee: Sabic Innovative Plastics IP B.V.Inventors: Steven Frederick Hubbard, Radislav Alexandrovich Potyrailo, Philippe Schottland, Verghese Thomas