Patents by Inventor Gautam Narendra Kudva

Gautam Narendra Kudva 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).

  • Publication number: 20200064535
    Abstract: A backlight unit suitable for use as an illuminator for liquid crystal display devices. The backlight unit comprises a glass light guide plate with a glass sheet including a first glass surface comprising a plurality of channels separated by peaks and arranged periodically therein, and a plurality of light emitting diodes arranged in an array along at least one edge surface of the glass sheet.
    Type: Application
    Filed: February 15, 2018
    Publication date: February 27, 2020
    Inventors: Seung-Ill Haan, Byoung-chul Jeong, Byounggwan Kang, Gautam Narendra Kudva, Ji-hoon Lee, Shenping Li, Xiang-Dong Mi, Amber Leigh Tremper, Natesan Venkataraman
  • Publication number: 20200062634
    Abstract: Methods and apparatus provide for: conveying a glass web from a source toward a destination in a transport direction; scoring the glass web in a width direction thereof to product a score line having a plurality of separated score segments, thereby defining a section of the glass web between the score line and leading edge of the glass web; supporting the glass web such that an increasing portion of the section of the glass web becomes cantilevered as the glass web is conveyed such that the portion of the section of the glass web is sufficiently large to generate stress in the respective score segments and drive respective cracks through the thickness of the glass web; and permitting the section of the glass web to separate from the glass web along the score line.
    Type: Application
    Filed: October 29, 2019
    Publication date: February 27, 2020
    Inventors: Robertson Dewhurst BOOTH, Douglas Edward BRACKLEY, Michael Vincent FICARRA, Andrew Peter KITTLESON, Gautam Narendra KUDVA, Eric Lee MILLER, Ian David Tracy
  • Patent number: 10570047
    Abstract: A method of continuously processing glass ribbon having a thickness ?0.3 mm. The method includes providing a glass processing apparatus having a first processing zone, a second processing zone and a third processing zone. The glass ribbon is continuously fed from the first processing zone, through the second processing zone to the third processing zone. The feed rate of the glass ribbon is controlled through each processing zone using a global control device. A first buffer zone is provided between the first processing zone and the second processing zone in which the glass substrate is supported in a first catenary between two, spaced-apart, payoff positions. A second buffer zone is provided between the second processing zone and the third processing zone in which the glass substrate is supported in a second catenary between two, spaced-apart, payoff positions.
    Type: Grant
    Filed: July 7, 2015
    Date of Patent: February 25, 2020
    Assignee: Corning Incorporated
    Inventors: Tomohiro Aburada, Jeffrey Robert Amadon, Douglas Edward Brackley, Gautam Narendra Kudva, Gary Edward Merz, Eric Lee Miller, Michael Yoshiya Nishimoto, Ian David Tracy, Matthew Daniel Trosa, Rui Zhang
  • Publication number: 20200055098
    Abstract: A web conveyance apparatus (101) may comprise a first cleaning device (136) with a first exterior suction port (211) laterally positioned outside of a first edge (201a) and facing a footprint (204a) of a first major surface (203a) of a web (103). In further embodiments, a method of manufacturing a web (103) may comprise conveying the web along a direction of a conveyance path and suctioning particles from the first major surface (203a) with a first exterior suction port (211) laterally positioned outside of a first edge (201a) and facing a footprint (204a) of a first major surface (203a) while conveying the web.
    Type: Application
    Filed: October 20, 2017
    Publication date: February 20, 2020
    Inventors: Todd Benson Fleming, Gautam Narendra Kudva, Dale Charles Marshall, Eric Lee Miller, Robert Daniel Parker, Calvin Jay Winder, John Anthony Yorio
  • Publication number: 20190389759
    Abstract: A method of continuously processing glass ribbon having a thickness?0.3 mm. The method includes providing a glass processing apparatus having a first processing zone, a second processing zone and a third processing zone. The glass ribbon is continuously fed from the first processing zone, through the second processing zone to the third processing zone. The feed rate of the glass ribbon is controlled through each processing zone using a global control device. A first buffer zone is provided between the first processing zone and the second processing zone in which the glass substrate is supported in a first catenary between two, spaced-apart, payoff positions. A second buffer zone is provided between the second processing zone and the third processing zone in which the glass substrate is supported in a second catenary between two, spaced-apart, payoff positions.
    Type: Application
    Filed: August 27, 2019
    Publication date: December 26, 2019
    Inventors: Tomohiro Aburada, Jeffrey Robert Amadon, Douglas Edward Brackley, Gautam Narendra Kudva, Gary Edward Merz, Eric Lee Miller, Michael Yoshiya Nishimoto, Ian David Tracy, Matthew Daniel Trosa, Rui Zhang
  • Patent number: 10494289
    Abstract: Methods and apparatus provide for: conveying a glass web from a source toward a destination in a transport direction; scoring the glass web in a width direction thereof to produce a score line having a plurality of separated score segments, thereby defining a section of the glass web between the score line and a leading edge of the glass web; supporting the glass web such that an increasing portion of the section of the glass web becomes cantilevered as the glass web is conveyed such that the portion of the section of the glass web is sufficiently large to generate stress in the respective score segments and drive respective cracks through the thickness of the glass web; and permitting the section of the glass web to separate from the glass web along the score line.
    Type: Grant
    Filed: January 22, 2016
    Date of Patent: December 3, 2019
    Assignee: Corning Incorporated
    Inventors: Robertson Dewhurst Booth, Douglas Edward Brackley, Michael Vincent Ficarra, Andrew Peter Kittleson, Gautam Narendra Kudva, Eric Lee Miller, Ian David Tracy
  • Publication number: 20190352214
    Abstract: Methods and apparatus for separating a glass sheet are described. An apparatus and a method utilize a vent bar having a cushion that exerts a force on the glass sheet adjacent a vent line to break the glass into two pieces at the vent line. The edge of the glass sheet has excellent perpendicularity without subsequent grinding and/or polishing so that the glass sheet can be used as a light guide plate in a display.
    Type: Application
    Filed: January 26, 2018
    Publication date: November 21, 2019
    Applicant: CORNING INCORPORATED
    Inventors: Andrew Peter Kittleson, Gautam Narendra Kudva, Eric Lee Miller, Calvibn Jay Winder
  • Publication number: 20190322436
    Abstract: A crate assembly includes an external crate assembly (12) having a top (16), a bottom (18), sides (20, 21) and ends (22, 23). An internal spool support assembly (14) is located within the external crate assembly (12). The internal spool support assembly (14) includes a lower spool support structure (54). The lower spool support structure (54) includes a first lower spool support assembly (58) located at one of the ends (22, 23) of the external crate assembly (12). A second lower spool support assembly (60) is located at an opposite one of the ends (22, 23) of the external crate assembly (12). The first lower spool support assembly (58) is separated from the second lower spool support assembly (60) such that the first and second lower spool assemblies (58, 60) may move relative to each other.
    Type: Application
    Filed: November 29, 2017
    Publication date: October 24, 2019
    Inventors: Donald Orrin Bigelow, Douglas Edward Brackley, Gautam Narendra Kudva, Eric Lee Miller
  • Patent number: 10343943
    Abstract: A glass manufacturing apparatus comprises a forming device configured to produce a glass ribbon and a control device configured to independently operate a first pull roll apparatus and a second pull roll apparatus such that the first pull roll apparatus rotates with a substantially constant torque the second pull roll apparatus rotates with a substantially constant angular velocity. The control device is further configured to adjust the substantially constant torque of the first pull roll apparatus based on an operating condition of at least one of the first pull roll apparatus and the second pull roll apparatus. In further examples, methods of manufacturing a glass ribbon are provided.
    Type: Grant
    Filed: April 24, 2014
    Date of Patent: July 9, 2019
    Assignee: Corning Incorporated
    Inventors: Tomohiro Aburada, Jeffrey Robert Amadon, Chris Scott Kogge, Gautam Narendra Kudva
  • Publication number: 20190185363
    Abstract: A method of managing mechanical stress on a crack tip when separating a flexible glass ribbon includes directing the flexible glass ribbon to an edge trimming apparatus including a cutting device. The flexible glass ribbon includes a first broad surface and a second broad surface that extend laterally between a first edge and a second edge. The first edge of the flexible glass ribbon is separated as the flexible glass ribbon moves by the cutting device forming a continuous strip of edge trim connected to a central portion of the flexible glass ribbon at a crack tip. A width of a gap between the first edge and the central portion is detected using a gap measurement device. A signal is supplied to a controller indicative of the width of the gap. The width of the gap between the first edge and the central portion is adjusted based on the signal using a gap adjustment device.
    Type: Application
    Filed: June 1, 2017
    Publication date: June 20, 2019
    Inventors: Andrew Peter Kittleson, Gautam Narendra Kudva, Eric Lee Miller, Brandon George Sizemore
  • Publication number: 20190010072
    Abstract: Disclosed herein are methods for continuous processing of a thin, flexible glass ribbon through various processing zones and maintaining a concave or substantially linear machine directional (MD) and/or cross-directional (CD) curvature of the flexible glass ribbon through at least two or more contiguous zones in the process. Apparatuses for the continuous processing of a thin, flexible glass ribbon while maintaining a desired MD and/or CD curvature are also disclosed herein.
    Type: Application
    Filed: January 6, 2017
    Publication date: January 10, 2019
    Applicant: CORNING INCORPORATED
    Inventors: Tomohiro Aburada, Gautam Narendra Kudva
  • Publication number: 20180362388
    Abstract: A method of separating a glass web includes the steps of placing the glass web in tension by applying an in-plane tension to the glass web in a tensile direction and producing a region of increased tension on a first major surface of the glass web by imparting a curvature in the glass web. The method further includes separating the glass web along a separation path parallel to an axis of the curvature and transverse to the tensile direction by applying a defect to a portion of the first major surface in the region of increased tension.
    Type: Application
    Filed: November 30, 2016
    Publication date: December 20, 2018
    Inventors: John Frederick Bayne, Scott Winfield Deming, Todd Benson Fleming, Andrew Peter Kittleson, Gautam Narendra Kudva, Dale Charles Marshall, Eric Lee Miller
  • Publication number: 20180141847
    Abstract: A method of continuous processing of flexible glass ribbon having a thickness of no more than 0.35 mm using a glass processing apparatus is provided. The method includes providing the glass processing apparatus having at least three processing zones including a first processing zone, a second processing zone and a third processing zone. The flexible glass ribbon is continuously fed from the first processing zone, through the second processing zone to the third processing zone. Rate of the flexible glass ribbon is controlled through each of the first processing zone, second processing zone and third processing zone using a global control device. The second processing zone has a conveyance path for the flexible glass ribbon through a cutting zone having a radius of curvature of from about 100 inches to about 400 inches.
    Type: Application
    Filed: May 17, 2016
    Publication date: May 24, 2018
    Inventors: Robertson Dewhurst Booth, Douglas Edward Brackley, Scott Winfield Deming, Andrew Peter Kittleson, Gautam Narendra Kudva, Dale Charles Marshall, Gary Edward Merz, Eric Lee Miller, Kathleen Elizabeth Morse, Ian David Tracy
  • Publication number: 20180141848
    Abstract: A method of continuous processing of flexible glass ribbon having a thickness of no more than 0.35 mm using a glass processing apparatus. The method includes providing the glass processing apparatus having at least three processing zones, including a first processing zone, a second processing zone and a third processing zone. The flexible glass ribbon is continuously fed from the first processing zone, through the second processing zone to the third processing zone. The feed rate of the flexible glass ribbon is controlled through each of the first processing zone, the second processing zone and the third processing zone using a global control device. Lateral position of the flexible glass ribbon is controlled through the second processing zone using a multi-axis steering apparatus comprising a first roller set and a second roller set, located downstream of the first roller set.
    Type: Application
    Filed: May 17, 2016
    Publication date: May 24, 2018
    Inventors: Tomohiro Aburada, Gautam Narendra Kudva, Gary Edward Merz, Kathleen Elizabeth Morse, Matthew Daniel Torsa
  • Publication number: 20180134605
    Abstract: A method and apparatus for processing glass comprising a forming apparatus in a first processing zone, the forming apparatus configured to form a glass ribbon having a first direction of travel in the first processing zone. The apparatus also includes a first cutting apparatus in a second processing zone, the first cutting apparatus configured to separate one or more portions of the glass ribbon, the glass ribbon having a second direction of travel. The apparatus includes a first buffer zone between the first processing zone and the second processing zone in which the glass ribbon is supported in a first catenary between two, spaced-apart payoff positions. The second direction of travel in the second processing zone can be orthogonal to the first direction of travel in the first processing zone.
    Type: Application
    Filed: May 17, 2016
    Publication date: May 17, 2018
    Inventors: Tomohiro Aburada, Douglas Edward Brackley, Gautam Narendra Kudva, Shawn Rachelle Markham, Gary Edward Merz, Eric Lee Miller
  • Publication number: 20180079675
    Abstract: A glass forming apparatus and method include a cooling mechanism in a wall of the apparatus that enhances radiation heat transfer between the glass and the wall of the apparatus and is tunable in both the vertical and horizontal directions. The apparatus and method also include a heating mechanism that affects radiation heat transfer between the glass and the wall of the apparatus, is tunable in both the vertical and horizontal directions, and is independently operable from the cooling mechanism.
    Type: Application
    Filed: April 8, 2016
    Publication date: March 22, 2018
    Inventors: Bushra Afzal, Anmol Agrawal, Kenneth William Aniolek, John Michael Feenaughty, Ming-Huang Huang, Gautam Narendra Kudva, Shawn Rachelle Markham, Ilia Andreyevich Nikulin
  • Publication number: 20170369356
    Abstract: Methods and apparatus provide for: conveying a glass web from a source toward a destination in a transport direction; scoring the glass web in a width direction thereof to produce a score line having a plurality of separated score segments, thereby defining a section of the glass web between the score line and a leading edge of the glass web; supporting the glass web such that an increasing portion of the section of the glass web becomes cantilevered as the glass web is conveyed such that the portion of the section of the glass web is sufficiently large to generate stress in the respective score segments and drive respective cracks through the thickness of the glass web; and permitting the section of the glass web to separate from the glass web along the score line.
    Type: Application
    Filed: January 22, 2016
    Publication date: December 28, 2017
    Inventors: Robertson Dewhurst Booth, Douglas Edward Brackley, Michael Vincent Ficarra, Andrew Peter Kittleson, Gautam Narendra Kudva, Eric Lee Miller, Ian David Tracy
  • Patent number: 9708136
    Abstract: Non-contact, liquid-ejecting bearings (3) are provided for conveying flexible glass sheets (13), such as LCD substrates, at high conveyance speeds, e.g., speeds of 15 meters/minute and above. The operating parameters and physical properties of the bearings satisfy at least one of the following conditions: (a) the average flow rate from the bearing's orifices (22) is in the range of 100-800 milliliters/minute/orifice; (b) the orifices' average horizontal pitch (P) is in the range of 20-55 millimeters; and/or (c) the orifices' average size (e.g., D0) is in the range of 1.0-4.5 millimeters. The bearings (3) can reduce the time-averaged, peak-to-peak variation in the spacing between a LCD substrate (13) traveling at 15 meters/minute and the face (20) of the bearing (3) to less than 100 microns, thus reducing the chances that the bearing (3) will lose control of the substrate (13) or that the substrate (13) will hit the bearing (3).
    Type: Grant
    Filed: September 13, 2011
    Date of Patent: July 18, 2017
    Assignee: Corning Incorporated
    Inventors: Gautam Narendra Kudva, Weiwei Luo, Yoshihiro Nakamura, Tetsuzou Yamada
  • Publication number: 20170197864
    Abstract: A method of continuously processing glass ribbon having a thickness<0.3 mm. The method includes providing a glass processing apparatus having a first processing zone, a second processing zone and a third processing zone. The glass ribbon is continuously fed from the first processing zone, through the second processing zone to the third processing zone. The feed rate of the glass ribbon is controlled through each processing zone using a global control device. A first buffer zone is provided between the first processing zone and the second processing zone in which the glass substrate is supported in a first catenary between two, spaced-apart, payoff positions. A second buffer zone is provided between the second processing zone and the third processing zone in which the glass substrate is supported in a second catenary between two, spaced-apart, payoff positions.
    Type: Application
    Filed: July 7, 2015
    Publication date: July 13, 2017
    Inventors: Tomohiro Aburada, Jeffrey Robert Amadon, Douglas Edward Brackley, Gautam Narendra Kudva, Gary Edward Merz, Eric Lee Miller, Michael Yoshiya Nishimoto, Ian David Tracy, Matthew Daniel Trosa, Rui Zhang
  • Patent number: 9682882
    Abstract: Methods for producing a glass ribbon include the step of drawing a glass ribbon from a quantity of molten glass and detecting an instability in the glass ribbon. In response to the detected instability, the method can further include the step of automatically adjusting an operating variable for each of a plurality of stabilizing elements simultaneously with a controller to at least partially counter the detected instability.
    Type: Grant
    Filed: July 17, 2014
    Date of Patent: June 20, 2017
    Assignee: Corning Incorporated
    Inventors: Tomohiro Aburada, Jeffrey Robert Amadon, Adam Charles Berkey, Terrence Richard Horsfall, Gautam Narendra Kudva, Michael Yoshiya Nishimoto