Patents Examined by Lisa L Herring
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Patent number: 11834364Abstract: A non-contact direction changer includes: a guide groove that guides an optical fiber and changes a direction of advancement of the optical fiber from a first direction to a second direction; a bottom ejection opening at a bottom of the guide groove; and one or more side ejection openings on at least one of opposite side surfaces of the guide groove. A fluid is ejected into the guide groove through the bottom ejection opening. A fluid is ejected into the guide groove through the one or more side ejection openings.Type: GrantFiled: May 31, 2018Date of Patent: December 5, 2023Assignee: Fujikura Ltd.Inventor: Itaru Ishida
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Patent number: 11827555Abstract: An optical fiber forming apparatus comprises: a draw furnace comprising: (i) a muffle with an inner surface, (ii) an axial opening below the muffle, the inner surface of the muffle defining a passageway extending through the axial opening, and (iii) an upper inlet into the passageway; and a tube that extends into the passageway of the draw furnace above the axial opening, the tube having (i) an outer surface and the inner surface of the muffle surrounds the outer surface of the tube with a space separating the outer surface of the tube from the inner surface of the muffle, (ii) an inner surface that defines a second passageway extending through the tube, (iii) an inlet into the second passageway of the tube, (iii) an outlet out of the second passageway of the tube.Type: GrantFiled: May 13, 2021Date of Patent: November 28, 2023Assignee: CORNING INCORPORATEDInventors: Erling Richard Anderson, Tammy Michelle Hoffmann, Nikolaos Pantelis Kladias, Robert Clark Moore, Christopher Scott Thomas
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Patent number: 11820696Abstract: An optical fiber draw system and method of operating thereof. The method includes positioning a downfeed handle for supporting an optical fiber preform within a furnace such that the downfeed handle is movable within the furnace. The method further includes operating one or more heating elements to thermally heat at least a portion of an upper muffle extension disposed within the furnace, the one or more heating elements being moveable with the downfeed handle.Type: GrantFiled: November 1, 2022Date of Patent: November 21, 2023Assignee: Corning IncorporatedInventors: Tammy Michelle Hoffmann, John Michael Jewell, Nikolaos Pantelis Kladias
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Patent number: 11820691Abstract: A manufacturing apparatus for an optical fiber porous preform includes a reaction chamber configured to accommodate a starting material; at least one main burner provided in the reaction chamber, the at least one main burner being configured to be supplied with a gas containing at least a source gas and a flammable gas, such that particulates are to be generated from reaction of the source gas and the flammable gas and deposited on the starting material; at least one auxiliary burner configured to be directed toward an end portion of the starting material on which the particulates are to be deposited; and an airflow guide provided such that at least part of the airflow guide is located across the at least one auxiliary burner from the starting material.Type: GrantFiled: September 24, 2019Date of Patent: November 21, 2023Assignee: FURUKAWA ELECTRIC CO., LTD.Inventors: Tatsuyuki Higashizawa, Seiichi Shinada, Masaki Nakajima
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Patent number: 11820693Abstract: A method of molding a window for a display device includes: forming curved side surfaces and curved corners of the window, by pressing a heated preliminary window glass to a mold. The mold includes: a flat portion corresponding to a flat display portion of the display device; a window side surface bending portion corresponding to the side surfaces of the display device; and a window corner bending portion corresponding to the corners of the display device. The forming the curved side surfaces of the window includes pressing the heated preliminary window glass against the window side surface bending portion of the mold; and after the forming of the curved side surfaces, forming the curved corners and a flat portion of the window by further pressing the heated preliminary window glass respectively against the window corner bending portion and the flat portion of the mold.Type: GrantFiled: February 8, 2022Date of Patent: November 21, 2023Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Inbom Hwang, Sangho Park, Jungkyu Lee, Jonghyun Choi
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Patent number: 11820699Abstract: An apparatus for manufacturing glass includes a furnace. A doghouse of the furnace receives and melts solid-glass forming material using one or more submerged combustion burners. An elongated tank positioned downstream of the doghouse includes a melting chamber, a refining chamber, and a thermal conditioning. The melting chamber has in inlet through which molten glass is received from the doghouse. The refining chamber is positioned downstream of the melting chamber and receives molten glass from the melting chamber. The thermal conditioning chamber is positioned downstream of the refining chamber and receives molten glass from the refining chamber. Additionally, the thermal conditioning chamber delivers molten glass to a glass forming machine.Type: GrantFiled: September 28, 2020Date of Patent: November 21, 2023Assignee: Owens-Brockway Glass Container Inc.Inventors: Zhongming Wang, Carl Lucas Fayerweather, Kevin Xin Yu, Shivakumar S. Kadur, Dinesh Gera
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Patent number: 11802070Abstract: A method of processing an optical fiber includes drawing the optical fiber from an optical fiber preform within a draw furnace, the optical fiber extending from the draw furnace along a process pathway, the optical fiber comprising at least one halogen-doped core; and drawing the optical fiber through at least one slow cooling device positioned downstream from the draw furnace at a draw speed. The at least one slow cooling device exposes the optical fiber to a slow cooling device process temperature greater than or equal to 800° C. and less than or equal to 1600° C. The draw speed is such that the optical fiber has a residence time of at least 0.1 s in the at least one slow cooling device. An optical fiber made by such a process is also disclosed.Type: GrantFiled: May 5, 2021Date of Patent: October 31, 2023Assignee: Corning IncorporatedInventors: Steven Bruce Dawes, Pushkar Tandon
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Patent number: 11795099Abstract: A furnace gas supply apparatus configured to supply gas into a drawing furnace, includes: a first flow channel introducing the gas from a predetermined first gas inlet to flow the gas from a predetermined first gas outlet toward a gas storage portion, and a second flow channel introducing the gas stored in the gas storage portion from a predetermined second gas inlet to flow the gas from a predetermined second gas outlet toward a furnace core tube of the drawing furnace, in which the gas storage portion is provided between the first gas outlet and the second gas inlet, and in which an opening position of the second gas inlet is provided at a position different from an opening position of the first gas outlet.Type: GrantFiled: March 22, 2019Date of Patent: October 24, 2023Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Satoshi Yoshikawa, Katsuyuki Tsuneishi
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Patent number: 11787724Abstract: A method of manufacturing a glass film includes a forming step of forming a band-shaped glass film by pulling down a glass ribbon flowing down from a forming trough while sandwiching the glass ribbon from both front and back sides through use of roller pairs and a conveyance direction changing step of changing a conveyance direction of the glass film from the vertical direction to the horizontal direction by conveying the glass film along a conveyance path having an arc shape while supporting the glass film from a back surface side with a roller conveyor so that a front surface of the glass film after having passed through the conveyance path faces upward. A first roller to be brought into abutment against the glass film from the front surface side is arranged between a roller pair arranged in a lowermost stage and the roller conveyor.Type: GrantFiled: September 21, 2017Date of Patent: October 17, 2023Assignee: NIPPON ELECTRIC GLASS CO., LTD.Inventors: Hiroki Mori, Koichi Mori, Takuya Shioji, Toshitaka Nishijima
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Patent number: 11780761Abstract: A method for producing a porous glass fine particle body includes: a first layer formation step of continuously forming in a longitudinal direction of a rotating starting base material without a break, a first soot layer on a surface of the rotating starting base material; and an second layer formation step of forming second soot layers on an outside of the first soot layer while supplying a raw material gas to each of a burner among burners of a burner group and moving the burner group in a reciprocating manner in the longitudinal direction relative to the rotating starting base material. The burner group and the starting base material move relatively to each other along the longitudinal direction.Type: GrantFiled: April 12, 2019Date of Patent: October 10, 2023Assignee: Fujikura Ltd.Inventor: Nobutoshi Sato
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Patent number: 11773006Abstract: A method of making a glass includes batching constituents, including silica, alumina, boria, magnesia, quicklime, and strontia, where one or more of the constituents is from “dirty” raw material that includes a relatively large amount of sulfur. The method further includes melting and mixing the batch to make glass having sulfur content but free of blisters, suitable for high performance displays.Type: GrantFiled: November 22, 2022Date of Patent: October 3, 2023Assignee: Corning IncorporatedInventors: Adam James Ellison, Ellen Anne King, Lisa Ann Lamberson, Peter Joseph Lezzi
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Patent number: 11766889Abstract: The present invention discloses a method for preparing a full-body marble-patterned glass mosaic, comprising mixing a glass powder with an additive to obtain a mixture; adding water to the mixture and mixing thoroughly; granulating and sieving to obtain base clay body powder; mixing a colorant and a flux according to a specific ratio to obtain a colorant mixture in powder form; distributing the base clay body powder and the colorant mixture into multiple layers via a mold; press-molding to obtain a clay body; firing the clay body to obtain the full-body marble-patterned glass mosaic. Accordingly, the present invention provides a full-body marble-patterned glass mosaic prepared by the method described above. The glass mosaic of the present invention has a strong layering texture and a well-defined structure, and it faithfully resembles the pattern and texture of natural marble.Type: GrantFiled: September 30, 2019Date of Patent: September 26, 2023Assignee: FOSHAN PAMASE BUILDING MATERIAL CO., LTD.Inventor: Tian Liang
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Patent number: 11760682Abstract: A process for heating a glass or glass ceramic article with copper-metallized through holes includes heating the article from a first temperature to a second temperature. The first temperature is greater than or equal to 200° C. and less than or equal to 300° C., and the second temperature is greater than or equal to 350° C. and less than or equal to 450° C. An average heating rate during the heating of the article from the first temperature to the second temperature is greater than 0.0° C./min and less than 8.7° C./min. An article includes a glass or glass ceramic substrate having at least one through hole penetrating the substrate in a thickness direction; and copper present in the at least one through hole. The article does not comprise radial cracks.Type: GrantFiled: February 4, 2020Date of Patent: September 19, 2023Assignee: Corning IncorporatedInventor: Chukwudi Azubuike Okoro
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Patent number: 11759290Abstract: Provided is a silicate glass, a method for preparing a silicate glass-ceramics by using the silicate glass, and a method for preparing a lithium disilicate glass-ceramics by using the silicate glass, and more particularly, to a method for preparing a glass-ceramics that has a nanosize of 0.2 to 0.5 ?m and contains lithium disilicate and silicate crystalline phases. A nano lithium disilicate glass-ceramics containing a SiO2 crystalline phase includes: a glass composition including 70 to 85 wt % SiO2, 10 to 13 wt % Li2O, 3 to 7 wt % P2O5 working as a nuclei formation agent, 0 to 5 wt % Al2O3 for increasing a glass transition temperature and a softening point and enhancing chemical durability of glass, 0 to 2 wt % ZrO2, 0.5 to 3 wt % CaO for increasing a thermal expansion coefficient of the glass, 0.5 to 3 wt % Na2O, 0.5 to 3 wt % K2O, and 1 to 2 wt % colorants, and 0 to 2.0 wt % mixture of MgO, ZnO, F, and La2O3.Type: GrantFiled: January 6, 2022Date of Patent: September 19, 2023Assignee: HASS CO., LTDInventors: Yong Su Kim, Hyun Jun Jeon, Hyung Bong Lim, Kyung Sik Oh, Sung Ho Ha, Young Pyo Hong, Joon Hyung Kim, Cheol Young Kim
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Patent number: 11760680Abstract: Apparatus and methods for forming and printing hollow bodies from amorphous materials to form three-dimensional objects are provided. Apparatus provide a hollow body forming and printing machine, and methods for determining a desired amount of impact deformation for the hollow spheres, including calculating specific characteristics of the hollow spheres and the amorphous material, deriving a target viscosity range, adjusting the apparatus to satisfy the target viscosity range, and using the apparatus to form a plurality of hollow spheres with controlled deformation.Type: GrantFiled: June 28, 2021Date of Patent: September 19, 2023Assignee: The United States of America, as Represented by the Secretary of the NavyInventors: Aaron Wiest, Rebecca Stevens, Robert Dale Conner, Craig MacDougall, Sam Pratt
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Patent number: 11753327Abstract: Methods, apparatuses and systems of manufacturing an optical fiber are disclosed herein. The methods may include heating an optical preform in a draw furnace, drawing an optical fiber from the optical preform, cooling the optical fiber with a slow cooling device, and annealing the optical fiber by passing the optical fiber through an RF plasma heating apparatus.Type: GrantFiled: June 17, 2020Date of Patent: September 12, 2023Assignee: Corning IncorporatedInventors: Daniel Robert Boughton, Kenneth Edward Hrdina, Stefan Wolfgang Kramel, Christopher Scott Thomas
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Patent number: 11753334Abstract: A method of performing ion exchange of a thin, flexible glass substrate having an average thickness equal to or less than about 0.3 mm to chemically strengthen the glass substrate is disclosed. The chemically strengthened glass substrate comprises a first compressive stress layer having a first depth of layer, and a second compressive stress layer having a second depth of layer, the first and second stress layers being separated by a layer of tensile stress. A laminated article comprising the chemically strengthened glass substrate is also described.Type: GrantFiled: September 2, 2020Date of Patent: September 12, 2023Assignee: Corning IncorporatedInventors: Sean Matthew Garner, Michael Lesley Sorensen
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Patent number: 11745459Abstract: Thin glass substrates are provided. Also provided are methods and apparatuses for the production thereof and provides a thin glass substrate of improved optical quality. The method includes, after the melting and before a hot forming process, adjusting the viscosity of the glass that is to be formed or has at least partially been formed is in a defined manner for the thin glass substrate to be obtained. The apparatus includes a device for melting, a device for hot forming, and also a device for defined adjustment of the viscosity of the glass to be formed into a thin glass substrate, and the device for defined adjustment of the viscosity of the glass to be formed into a thin glass substrate is arranged upstream of the device for hot forming.Type: GrantFiled: April 17, 2020Date of Patent: September 5, 2023Assignee: SCHOTT AGInventors: Armin Vogl, Thomas Schmiady, Thilo Zachau, Michael Meister, Jochen Alkemper, Christian Kunert, Lutz Klippe, Rüdiger Dietrich
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Patent number: 11702358Abstract: The invention relates to a method and a device for producing a preform for glass fiber production. The method comprises the steps of providing a carrier gas with a desired, precisely adjusted temperature, loading the carrier gas with halide vapor, mixing the loaded carrier gas with additional gases, and producing the preform in a reaction chamber with substrate.Type: GrantFiled: July 30, 2019Date of Patent: July 18, 2023Assignee: J-FIBER GMBHInventor: Wolfgang Haemmerle
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Patent number: 11691911Abstract: A method of manufacturing a window member includes performing a first reinforcement operation including performing a first ion-exchange treatment on an initial window member. The first ion-exchange treatment includes applying ion salts at a temperature equal to or greater than a first temperature of about 500° C. A stress relief operation includes performing a heat treatment and/or a salt treatment on the initial window member to which the first reinforcement operation is performed. A second reinforcement operation includes performing a second ion-exchange treatment on the initial window member to which the stress relief operation is performed.Type: GrantFiled: March 20, 2018Date of Patent: July 4, 2023Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Hoikwan Lee, Cheolmin Park, Eun-Kyung Yeon, Jeongseok Lee, Seungho Kim