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公开(公告)号：WO2020013982A1
公开(公告)日：2020-01-16
申请号：PCT/US2019/038870
申请日：2019-06-25
Applicant: CORNING INCORPORATED
Inventor： AKARAPU, Ravindra Kumar , CHEN, Wei Shin , ISHIKAWA, Tomohiro
IPC: G02F1/133 , G09G3/36 , G02F1/1345 , H05K1/14
Abstract: An apparatus includes a substrate, a thin-film-transistor (TFT) array, a circuit, driving lines, and straight signal lines. The substrate includes a first area and a second area. The TFT array is in the first area of the substrate. The circuit is in the second area of the substrate and in electrical communication with the TFT array. The driving lines are in the second area of the substrate between a first edge of the substrate and the circuit. The driving lines are in electrical communication with the circuit. The straight signal lines are aligned with and in electrical communication with the driving lines in the second area of the substrate. The straight signal lines extend to a second edge of the substrate perpendicular to the first edge.
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公开(公告)号：WO2021030177A1
公开(公告)日：2021-02-18
申请号：PCT/US2020/045345
申请日：2020-08-07
Applicant: CORNING INCORPORATED
Abstract: An extrusion system (100) according to certain aspects includes at least one infrared emitting device (102) arranged in a generally cylindrical shape with a hollow interior. The at least one infrared emitting device (102) is positioned downstream of an outlet of an extrusion die (110) to irradiate a perimeter of wet extrudate material in a uniform manner to form stiffened wet extrudate material (116) before such material is received by an extrudate support channel (118). The at least one infrared emitting device (102) generally uniformly stiffens the skin of the wet extrudate material (116) to resist mechanical deformation of the extrudate material during subsequent handling steps. Such skin stiffening allows for increased tolerance of handling forces and permits extrusion of softer wet extrudate material without compromising the shape of a fired ceramic product.
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3.发明申请APPARATUSES AND METHODS FOR LASER PROCESSING TRANSPARENT WORKPIECES USING NON-AXISYMMETRIC BEAM SPOTS 审中-公开用非轴对称束斑激光加工透明工件的装置和方法
公开(公告)号：WO2018064409A1
公开(公告)日：2018-04-05
申请号：PCT/US2017/054168
申请日：2017-09-28
Applicant: CORNING INCORPORATED
Inventor： AKARAPU, Ravindra Kumar , PIECH, Garrett Andrew , TSUDA, Sergio , WEST, James Andrew
IPC: B23K26/00 , B23K26/073 , B23K26/53 , B23K26/06 , C03B33/02 , B23K103/00
Abstract: A method for laser processing a transparent workpiece includes forming a contour line that includes defects, by directing a pulsed laser beam output by a beam source through an aspheric optical element positioned offset in a radial direction from the beam pathway and into the transparent workpiece such that the portion of the pulsed laser beam directed into the transparent workpiece generates an induced absorption within the transparent workpiece that produces a defect within the transparent workpiece. The portion of the pulsed laser beam directed into the transparent workpiece includes a wavelength λ, an effective spot size w o,eff , and a non-axisymmetric beam cross section having a minimum Rayleigh range Z Rx,min in an x-direction and a minimum Rayleigh range Z Ry,min min in a y-direction. Further, the smaller of Z Rx,min and Z Ry,min is greater than formula (I), where F D is a dimensionless divergence factor comprising a value of 10 or greater.
Abstract translation: 用于激光加工透明工件的方法包括通过将由束源输出的脉冲激光束引导通过非球面光学元件来形成包括缺陷的轮廓线，该非球面光学元件沿着从该束的径向方向 路径并且进入透明工件，使得被引导到透明工件中的脉冲激光束的部分在透明工件内产生诱发吸收，其在透明工件内产生缺陷。 被引导到透明工件中的脉冲激光束的部分包括波长λ，有效光斑尺寸w0，eff和非 在x方向和最小Rayleigh范围内具有最小Rayleigh范围的最小Rayleigh范围
Rx，min 的轴对称射束横截面。 在y方向上Ry，min min。 进一步地，Z 是无量纲的散度因子，包括10或更大的值 -
4.发明申请
公开(公告)号：WO2013163524A1
公开(公告)日：2013-10-31
申请号：PCT/US2013/038381
申请日：2013-04-26
Applicant: CORNING INCORPORATED , AKARAPU, Ravindra Kumar , DONOVAN, Michael Patrick , LI, Aize
Inventor： AKARAPU, Ravindra Kumar , DONOVAN, Michael Patrick , LI, Aize
CPC classification number: C03C15/00 , B24B9/10 , C03C15/02 , Y10T428/24488 , Y10T428/24777 , Y10T428/315
Abstract: A strengthened glass sheet or article having an edge profile that provides improved edge strength, particularly when the strengthened glass sheet is subjected to a four point bend test, and a method of making a glass sheet having such an edge. The edge is formed by cutting or other separation methods and then ground to a predetermined profile such as a pencil or bullet profile, a bull nose profile, or the like. In some embodiments, the edge is polished and/or etched following grinding to reduce flaw size.
Abstract translation: 具有提高边缘强度的边缘轮廓的强化玻璃板或制品，特别是当加强玻璃板进行四点弯曲试验时，以及制造具有这种边缘的玻璃板的方法。 边缘通过切割或其它分离方法形成，然后研磨成预定的轮廓，例如铅笔或子弹轮廓，牛鼻轮廓等。 在一些实施例中，边缘在研磨之后被抛光和/或蚀刻以减少缺陷尺寸。
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公开(公告)号：WO2022115557A1
公开(公告)日：2022-06-02
申请号：PCT/US2021/060757
申请日：2021-11-24
Applicant: CORNING INCORPORATED
Inventor： AKARAPU, Ravindra Kumar , DEJNEKA, Matthew John , DEROSA, Michael Edward , GUILFOYLE, Diane Kimberlie , ISENBERG, Camden Wayne , OCAMPO DAVILA, Manuela , O'MALLEY, Shawn Michael , RICKERL, Paul George , TREMPER, Amber Leigh , VANDUYNE, Erick Franklin , WALTER, Jonathan Earl
Abstract: Laminated glass-based articles are provided. The glass-based articles include at least a first glass-based layer, a second glass-based layer, and a polymer layer disposed between the first and second glass-based layers. The first glass-based layer includes a compressive stress. A difference between the coefficient of thermal of expansion of the first glass-based layer and the coefficient of thermal of expansion of the second glass-based layer is greater than or equal to 0.4 ppm/°C. Methods of producing the laminated glass-based articles are also provided.
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Patent Agency Ranking6.发明申请
公开(公告)号：WO2019125971A1
公开(公告)日：2019-06-27
申请号：PCT/US2018/065893
申请日：2018-12-16
Applicant: CORNING INCORPORATED
Inventor： AKARAPU, Ravindra Kumar , HALDER, Amit , JAIN, Priyank Paras , LI, Weidong
CPC classification number: F01N3/2828 , B01D53/9454 , B28B3/269 , B29C48/022 , B29C48/11 , B29C48/345 , F01N2330/06 , F01N2330/30 , F01N2330/48
Abstract: A thin-walled honeycomb body (100) having a plurality of repeating cell structures (110) formed of intersecting porous thick walls (112V, 112H) and thin walls (114V, 114H). Each repeating cell structure (110) is bounded on its periphery by the thick walls (112V, 122H) of a first transverse thickness (Tk) and the thin walls (114V, 114H) have a second transverse thickness (Tt) that subdivides each repeating cell structure (110) into between 7 and 36 individual cells (108). In the thin-walled honeycomb body (100), the first transverse thickness (Tk) of the thick walls (112V, 112H) is less than or equal to 0.127 mm (0.005 inch) and the second transverse thickness (Tt) of the thin walls (114V, 114H) is less than or equal to 0.0635 mm (0.0025 inch), and Tk > Tt. Honeycomb extrusion dies and methods of manufacturing the thin-walled honeycomb body (100) having thick walls (112V, 112H) and thin walls (114V, 114H) are provided.
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7.发明申请METHODS OF LASER MACHINING WET CELLULAR CERAMIC EXTRUDATE FOR HONEYCOMB BODY MANUFACTURE 审中-公开蜂窝体制造用激光加工湿式蜂窝陶瓷挤出物的方法
公开(公告)号：WO2017214251A1
公开(公告)日：2017-12-14
申请号：PCT/US2017/036318
申请日：2017-06-07
Applicant: CORNING INCORPORATED
Inventor： AKARAPU, Ravindra Kumar , JAIN, Priyank Paras , MALARKEY, Christopher John , NAYAK, Barada Kanta
Abstract: A method of manufacturing a honeycomb body, comprising extruding honeycomb extrudate (200) in an axial direction (A), the honeycomb extrudate (200) having an outer periphery (206); and laser machining in situ the honeycomb extrudate (200) to form a laser cut in the honeycomb extrudate. A system for in situ cutting a wet green ceramic extrudate, comprising a laser (500, 732, 826) configured to irradiate laser energy to an outer periphery of a wet green ceramic article, the laser energy adapted to cut through at least a portion of the outer periphery (206).
Abstract translation: 一种制造蜂窝体的方法，包括沿轴向（A）挤出蜂窝状挤出物（200），所述蜂窝状挤出物（200）具有外周边（206）; 和激光加工蜂窝状挤出物（200）以在蜂窝状挤出物中形成激光切割。 一种用于原位切割湿的生陶瓷挤出物的系统，包括激光器（500,732,826），该激光器被配置成将激光能量照射到湿的生陶瓷制品的外周边，该激光能量适合于 切穿外周边（206）的至少一部分。
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8.发明申请METHOD AND SYSTEM FOR CRACK-FREE DRYING OF HIGH STRENGTH SKIN ON A POROUS CERAMIC BODY 审中-公开多孔陶瓷体上高强度皮肤无裂纹干燥的方法与系统
公开(公告)号：WO2015187904A1
公开(公告)日：2015-12-10
申请号：PCT/US2015/034106
申请日：2015-06-04
Applicant: CORNING INCORPORATED
Inventor： AKARAPU, Ravindra Kumar , BRUINS, Derik Alan , GEORGE, Jacob , HALDER, Amit , MILIA, Charlotte Diane , OLMSTEAD, Kaitliln Smith
CPC classification number: B29C35/04 , B28B11/241 , B28B11/243 , B28B17/0081 , B29C2035/0822 , B29C2035/0855 , C04B41/0072 , C04B41/009 , C04B41/5089 , C04B41/85 , C04B2111/00793 , F26B2210/02 , C04B35/00 , C04B38/0006 , C04B35/195 , C04B14/465 , C04B41/5035
Abstract: A method and system to dry crack-free and high strength skin including an inorganic binder of an average particle size (D50) in a range between 10 nm and 700 nm on a porous ceramic body. The method includes supporting the honeycomb body on an end face such that axial channels and outer periphery are substantially vertical. A gas is flowed past the honeycomb body substantially parallel to the axial channel direction, substantially equally around the outer periphery of the skin, to uniformly dry the skin to form a partially dried skin under mild conditions. Then the partially dried skin may be dried more severely resulting in rapidly dried crack-free and high strength skin.
Abstract translation: 包括在多孔陶瓷体上的平均粒度（D50）为10nm〜700nm的无机粘合剂的无裂纹高强度皮肤的方法和系统。 该方法包括将蜂窝体支撑在端面上，使得轴向通道和外周基本垂直。 基本平行于轴向通道方向的气体大致均匀地流过蜂窝体，使皮肤均匀地干燥皮肤以在温和的条件下形成部分干燥的皮肤。 然后部分干燥的皮肤可能被更严重地干燥，导致快速干燥的无裂纹和高强度的皮肤。
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公开(公告)号：WO2021030176A1
公开(公告)日：2021-02-18
申请号：PCT/US2020/045343
申请日：2020-08-07
Applicant: CORNING INCORPORATED
Inventor： AKARAPU, Ravindra Kumar , HALDER, Amit , LI, Xinghua
IPC: B28B3/26 , B28B17/00 , C04B35/638 , C04B41/00
Abstract: An extrusion system (100) includes at least one sensor (102, 104) to detect localized presence of oil (701) on an exterior surface (715) or skin of wet extrudate material (714 e.g., ceramic material having a honeycomb cross-sectional shape), and at least one infrared emitting device (106, 108) configured to impinge infrared emissions on at least a portion of the exterior surface responsive to one or more sensor signals. Localized impingement of infrared emissions may reduce presence of oil streaks (701) without undue differential drying of the extrudate skin (715), and avoid surface fissures that would otherwise result in fired ceramic bodies. Separately controllable infrared emitters (502), or at least one controllable infrared blocking or redirecting element (603), may be used to impinge infrared emissions on selected areas. A humidification section (120) arranged downstream of infrared emitters (106, 108) may be used to at least partially rehydrate the wet extrudate material, if necessary.
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公开(公告)号：WO2017146923A1
公开(公告)日：2017-08-31
申请号：PCT/US2017/017597
申请日：2017-02-13
Applicant: CORNING INCORPORATED
Inventor： AKARAPU, Ravindra Kumar , LI, Ming-Jun , LIU, Anping , NAYAK, Barada Kanta , REDING, Bruce Warren
IPC: C03B37/027
CPC classification number: C03B37/12 , C03B37/025 , C03B37/02727 , C03B2205/20 , C03B2205/42 , G02B5/10 , G02B6/02 , Y02P40/57
Abstract: A method and corresponding apparatus for processing optical fiber include directing light from a directed light source toward an optical fiber on a fiber draw. A fiber core of the optical fiber is heated, using at least the light from the directed light source, to a fiber core temperature within a glass transformation temperature range of the fiber core. The method can be used to reduce fictive temperature of the fiber core, with Rayleigh scattering being reduced, leading to lower attenuation losses in the fiber core.
Abstract translation: 用于处理光纤的方法和相应设备包括将光从定向光源引向光纤上的光纤。 使用至少来自定向光源的光将光纤的光纤芯加热至光纤芯的玻璃化转变温度范围内的光纤芯温度。 该方法可用于降低纤芯的假想温度，瑞利散射减少，导致纤芯中的衰减损耗更低。
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