Patents by Inventor Adam J. G. Ellison
Adam J. G. Ellison 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: 8798412Abstract: Disclosed is an optical fiber having a core with an alkali metal oxide dopant in an peak amount greater than about 0.002 wt. % and less than about 0.1 wt. %. The alkali metal oxide concentration varies with a radius of the optical fiber. By appropriately selecting the concentration of alkali metal oxide dopant in the core and the cladding, a low loss optical fiber may be obtained. Also disclosed are several methods of making the optical fiber including the steps of forming an alkali metal oxide-doped rod, and adding additional glass to form a draw perform. Preferably, the draw preform has a final outer dimension (d2), wherein an outer dimension (d1) of the rod is less than or equal to 0.06 times the final outer dimension (d2). In a preferred embodiment, the alkali metal oxide-doped rod is inserted into the centerline hole of a preform to form an assembly.Type: GrantFiled: August 27, 2004Date of Patent: August 5, 2014Assignee: Corning IncorporatedInventors: Dana C. Bookbinder, Lisa C. Chacon, Adam J. G. Ellison, Rostislav R. Khrapko, Stephan L. Logunov, Michael T. Murtagh, Sabyasachi Sen
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Patent number: 8763429Abstract: Described herein are alkali-free, boroalumino silicate glasses exhibiting desirable physical and chemical properties for use as substrates in flat panel display devices, such as, active matrix liquid crystal displays (AMLCDs). In accordance with certain of its aspects, the glasses possess good dimensional stability as a function of temperature.Type: GrantFiled: November 10, 2010Date of Patent: July 1, 2014Assignee: Corning IncorporatedInventors: Paul S. Danielson, Adam J. G. Ellison, Natesan Venkataraman
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Patent number: 8642491Abstract: Glasses are disclosed which can be used to produce substrates for flat panel display devices, e.g., active matrix liquid crystal displays (AMLCDs). The glasses have MgO concentrations in the range from 1.0 mole percent to 3.0 mole percent and ?[RO]/[Al2O3] ratios greater than or equal to 1.00, where [Al2O3] is the mole percent of Al2O3 and ?[RO] equals the sum of the mole percents of MgO, CaO, SrO, and BaO. These compositional characteristics have been found to improve the melting properties of batch materials used to produce the glass, which, in turn, allows the glasses to be fined (refined) with more environmentally friendly fining agents, e.g., tin as opposed to arsenic and/or antimony.Type: GrantFiled: December 10, 2010Date of Patent: February 4, 2014Assignee: Corning IncorporatedInventor: Adam J. G. Ellison
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Patent number: 8640498Abstract: Glasses are disclosed which can be used to produce substrates for flat panel display devices, e.g., active matrix liquid crystal displays (AMLCDs). The glasses have MgO concentrations in the range from 1.0 mole percent to 3.0 mole percent and ?[RO]/[Al2O3] ratios greater than or equal to 1.00, where [Al2O3] is the mole percent of Al2O3 and ?[RO] equals the sum of the mole percents of MgO, CaO, SrO, and BaO. These compositional characteristics have been found to improve the melting properties of batch materials used to produce the glass, which, in turn, allows the glasses to be fined (refined) with more environmentally friendly fining agents, e.g., tin as opposed to arsenic and/or antimony.Type: GrantFiled: December 10, 2010Date of Patent: February 4, 2014Assignee: Corning IncorporatedInventor: Adam J. G. Ellison
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Publication number: 20110082022Abstract: Glasses are disclosed which can be used to produce substrates for flat panel display devices, e.g., active matrix liquid crystal displays (AMLCDs). The glasses have MgO concentrations in the range from 1.0 mole percent to 3.0 mole percent and ?[RO]/[Al2O3] ratios greater than or equal to 1.00, where [Al2O3] is the mole percent of Al2O3 and ?[RO] equals the sum of the mole percents of MgO, CaO, SrO, and BaO. These compositional characteristics have been found to improve the melting properties of batch materials used to produce the glass, which, in turn, allows the glasses to be fined (refined) with more environmentally friendly fining agents, e.g., tin as opposed to arsenic and/or antimony.Type: ApplicationFiled: December 10, 2010Publication date: April 7, 2011Inventor: Adam J.G. Ellison
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Publication number: 20110079049Abstract: Glasses are disclosed which can be used to produce substrates for flat panel display devices, e.g., active matrix liquid crystal displays (AMLCDs). The glasses have MgO concentrations in the range from 1.0 mole percent to 3.0 mole percent and ?[RO]/[Al2O3] ratios greater than or equal to 1.00, where [Al2O3] is the mole percent of Al2O3 and ?[RO] equals the sum of the mole percents of MgO, CaO, SrO, and BaO. These compositional characteristics have been found to improve the melting properties of batch materials used to produce the glass, which, in turn, allows the glasses to be fined (refined) with more environmentally friendly fining agents, e.g., tin as opposed to arsenic and/or antimony.Type: ApplicationFiled: December 10, 2010Publication date: April 7, 2011Inventor: Adam J.G. Ellison
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Publication number: 20110048074Abstract: Described herein are alkali-free, boroalumino silicate glasses exhibiting desirable physical and chemical properties for use as substrates in flat panel display devices, such as, active matrix liquid crystal displays (AMLCDs). In accordance with certain of its aspects, the glasses possess good dimensional stability as a function of temperature.Type: ApplicationFiled: November 10, 2010Publication date: March 3, 2011Inventors: Paul S. Danielson, Adam J.G. Ellison, Natesan Venkataraman
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Patent number: 7851394Abstract: Glasses are disclosed which can be used to produce substrates for flat panel display devices, e.g., active matrix liquid crystal displays (AMLCDs). The glasses have MgO concentrations in the range from 1.0 mole percent to 3.0 mole percent and ?[RO]/[Al2O3] ratios greater than or equal to 1.00, where [Al2O3] is the mole percent of Al2O3 and ?[RO] equals the sum of the mole percents of MgO, CaO, SrO, and BaO. These compositional characteristics have been found to improve the melting properties of batch materials used to produce the glass, which, in turn, allows the glasses to be fined (refined) with more environmentally friendly fining agents, e.g., tin as opposed to arsenic and/or antimony.Type: GrantFiled: June 28, 2006Date of Patent: December 14, 2010Assignee: Corning IncorporatedInventor: Adam J. G. Ellison
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Patent number: 7833919Abstract: Described herein are alkali-free, boroalumino silicate glasses exhibiting desirable physical and chemical properties for use as substrates in flat panel display devices, such as, active matrix liquid crystal displays (AMLCDs). In accordance with certain of its aspects, the glasses possess good dimensional stability as a function of temperature.Type: GrantFiled: February 9, 2007Date of Patent: November 16, 2010Assignee: Corning IncorporatedInventors: Paul S. Danielson, Adam J. G. Ellison, Natesan Venkataraman
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Patent number: 7612004Abstract: A family of glasses from the rare earth alumino-silicate (RE2O3—Al2O3—SiO2) ternary system exhibiting high strain point and low liquidus temperatures; preferably the La2O3—Al2O3—SiO2 ternary system. The glasses are excellent candidates for electronics applications and have the following composition, expressed in mole percent and calculated from the glass batch on an oxide basis: 60-85% SiO2, 10-25% Al2O3, and 4-15% RE2O3.Type: GrantFiled: August 16, 2006Date of Patent: November 3, 2009Assignee: Corning IncorporatedInventors: Bruce G. Aitken, Matthew J. Dejneka, Adam J. G. Ellison, Thomas E. Paulson
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Patent number: 7524784Abstract: Glasses are disclosed which are used to produce substrates in flat panel display devices. The glasses exhibit a density less than about 2.45 gm/cm3 and a liquidus viscosity greater than about 200,000 poises, the glass consisting essentially of the following composition, expressed in terms of mol percent on an oxide basis: 65-75 SiO2, 7-13 Al2O3, 5-15 B2O3, 0-3 MgO, 5-15 CaO, 0-5 SrO, and essentially free of BaO. The glasses also exhibit a strain point exceeding 650° C.Type: GrantFiled: March 10, 2008Date of Patent: April 28, 2009Assignee: Corning IncorporatedInventors: Lisa C. Chacon, Adam J. G. Ellison, George B. Hares, Jeffrey T. Kohli, Josef C. Lapp, Robert Morena
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Publication number: 20080160221Abstract: Glasses are disclosed which are used to produce substrates in flat panel display devices. The glasses exhibit a density less than about 2.45 gm/cm3 and a liquidus viscosity greater than about 200,000 poises, the glass consisting essentially of the following composition, expressed in terms of mol percent on an oxide basis: 65-75 SiO2, 7-13 Al2O3, 5-15 B2O3, 0-3 MgO, 5-15 CaO, 0-5 SrO, and essentially free of BaO. The glasses also exhibit a strain point exceeding 650° C.Type: ApplicationFiled: March 10, 2008Publication date: July 3, 2008Inventors: Lisa C. Chacon, Adam J. G. Ellison, George B. Hares, Jeffrey T. Kohli, Josef C. Lapp, Robert Morena
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Patent number: 7365038Abstract: Glasses are disclosed which are used to produce substrates in flat panel display devices. The glasses exhibit a density less than about 2.45 gm/cm3 and a liquidus viscosity greater than about 200,000 poises, the glass consisting essentially of the following composition, expressed in terms of mol percent on an oxide basis: 65–75 SiO2, 7–13 Al2O3, 5–15 B2O3, 0–3 MgO, 5–15 CaO, 0–5 SrO, and essentially free of BaO. The glasses also exhibit a strain point exceeding 650° C.Type: GrantFiled: October 7, 2004Date of Patent: April 29, 2008Assignee: Corning IncorporatedInventors: Lisa C. Chacon, Adam J. G. Ellison, George B. Hares, Jeffrey T. Kohli, Josef C. Lapp, Robert Morena
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Publication number: 20070191207Abstract: Described herein are alkali-free, boroalumino silicate glasses exhibiting desirable physical and chemical properties for use as substrates in flat panel display devices, such as, active matrix liquid crystal displays (AMLCDs). In accordance with certain of its aspects, the glasses possess good dimensional stability as a function of temperature.Type: ApplicationFiled: February 9, 2007Publication date: August 16, 2007Inventors: Paul S. Danielson, Adam J.G. Ellison, Natesan Venkataraman
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Patent number: 6870999Abstract: An isotopically-altered, silica based optical fiber is provided having lower losses, broader bandwidth, and broader Raman gain spectrum characteristics than conventional silica-based fiber. A heavier, less naturally abundant isotope of silicon or oxygen is substituted for a lighter, more naturally abundant isotope to shift the infrared absorption to a slightly longer wavelength. In one embodiment, oxygen-18 is substituted for the much more naturally abundant oxygen-16 at least in the core region of the fiber. The resulting isotopically-altered fiber has a minimum loss of 0.044 dB/km less than conventional fiber, and a bandwidth that is 17 percent broader for a loss range between 0.044-0.034 dB/km. The fiber may be easily manufactured with conventional fiber manufacturing equipment by way of a plasma chemical vapor deposition technique. When a 50 percent substitution of oxygen -18 for oxygen-16 is made in the core region of the fiber, the Raman gain spectrum is substantially broadened.Type: GrantFiled: August 25, 2004Date of Patent: March 22, 2005Assignee: Corning IncorporatedInventors: Douglas C. Allan, John T. Brown, Lisa C. Chacon, Adam J. G. Ellison, James C. Fajardo, Stuart Gray, Keith L. House, Karl W. Koch, III, Dale R. Powers, James A. West
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Patent number: 6831029Abstract: Glasses are disclosed which are used to produce substrates in flat panel display devices. The glasses exhibit a density less than about 2.45 gm/cm3 and a liquidus viscosity greater than about 200,000 poises, the glass consisting essentially of the following composition, expressed in terms of mol percent on an oxide basis: 65-75 SiO2, 7-13 Al2O3, 5-15 B2O3, 0-3 MgO, 5-15 CaO, 0-5 SrO, and essentially free of BaO. The glasses also exhibit a strain point exceeding 650° C.Type: GrantFiled: November 16, 2001Date of Patent: December 14, 2004Assignee: Corning IncorporatedInventors: Lisa C. Chacon, Adam J. G. Ellison, George B. Hares, Jeffrey T. Kohli, Josef C. Lapp, Robert Morena
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Patent number: 6810197Abstract: An isotopically-altered, silica based optical fiber is provided having lower losses, broader bandwidth, and broader Raman gain spectrum characteristics than conventional silica-based fiber. A heavier, less naturally abundant isotope of silicon or oxygen is substituted for a lighter, more naturally abundant isotope to shift the infrared absorption to a slightly longer wavelength. In one embodiment, oxygen-18 is substituted for the much more naturally abundant oxygen-16 at least in the core region of the fiber. The resulting isotopically-altered fiber has a minimum loss of 0.044 dB/km less than conventional fiber, and a bandwidth that is 17 percent broader for a loss range between 0.044-0.034 dB/km. The fiber may be easily manufactured with conventional fiber manufacturing equipment by way of a plasma chemical vapor deposition technique. When a 50 percent substitution of oxygen-18 for oxygen-16 is made in the core region of the fiber, the Raman gain spectrum is substantially broadened.Type: GrantFiled: December 18, 2002Date of Patent: October 26, 2004Assignee: Corning IncorporatedInventors: Douglas C. Allan, John T. Brown, Lisa C. Chacon, Adam J. G. Ellison, James C. Fajardo, Stuart Gray, Keith L. House, Karl W. Koch, III, Dale R. Powers, James A. West
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Patent number: 6797657Abstract: A host material for Tm3+-doping is provided. The host material is a fluorophosphate glass having a non-zero concentration of Tm3+, cation elements that include at least an alkaline earth, phosphorus, and aluminum, and anion elements that include oxygen (O) and fluorine (F). The fluorine(F)/oxygen (O) ratio (F/(F+O)) for the fluorophosphate glass of the embodiments of the present invention can be in the range of about 0.5 to about 0.85. The fluorophosphate glass further can have an alkali metal concentration of 10 mole % or less to improve durability. The Tm-doped fluorophosphate glass can be incorporated into an amplifier or laser utilized in the 14xx nm wavelength region.Type: GrantFiled: July 31, 2002Date of Patent: September 28, 2004Assignee: Corning IncorporatedInventors: Adam J.G. Ellison, Lauren K. Cornelius
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Patent number: 6760526Abstract: The present invention relates to a glass article for use as an optical waveguide fiber and more particularly to an optical waveguide fiber, the core of which is doped with a chalcogenide element to significantly increase the refractive index of the core. The subject of this invention is novel doped silica core compositions wherein a portion of the oxygen in the silica is replaced with either sulfur, selenium or tellurium using plasma enhanced chemical vapor deposition (PECVD). These compositions are designed to have higher refractive indices than silica, low coefficients of expansion, high optical transparency, and appropriate viscosity and softening points to make them ideal candidates for use as optical waveguide fibers.Type: GrantFiled: February 4, 2003Date of Patent: July 6, 2004Assignee: Corning IncorporatedInventors: Adam J. G. Ellison, Rostislav R. Khrapko
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Publication number: 20040023786Abstract: A host material for Tm3+-doping is provided. The host material is a fluorophosphate glass having a non-zero concentration of Tm3+, cation elements that include at least an alkaline earth, phosphorus, and aluminum, and anion elements that include oxygen (O) and fluorine (F). The fluorine(F)/oxygen (O) ratio (F/(F+O)) for the fluorophosphate glass of the embodiments of the present invention can be in the range of about 0.5 to about 0.85. The fluorophosphate glass further can have an alkali metal concentration of 10 mole % or less to improve durability. The Tm-doped fluorophosphate glass can be incorporated into an amplifier or laser utilized in the 14xx nm wavelength region.Type: ApplicationFiled: July 31, 2002Publication date: February 5, 2004Inventors: Adam J.G. Ellison, Lauren K. Cornelius