Patents by Inventor Kelvin Nguyen

Kelvin Nguyen 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).

  • Patent number: 12068725
    Abstract: A switched capacitor modulator (SCM) includes a RF power amplifier. The RF power amplifier receives a rectified voltage and a RF drive signal and modulates an input signal in accordance with the rectified voltage to generate a RF output signal to an output terminal. A reactance in parallel with the output terminal is configured to vary in response to a control signal to vary an equivalent reactance in parallel with the output terminal. A controller generates the control signal and a commanded phase. The commanded phase controls the RF drive signal. The reactance is at least one of a capacitance or an inductance, and the capacitance or the inductance varies in accordance with the control signal.
    Type: Grant
    Filed: November 23, 2022
    Date of Patent: August 20, 2024
    Assignee: MKS Instruments, Inc.
    Inventors: Duy Nguyen, Albert Kuramshin, Aaron Radomski, Alexander Jurkov, Hangon Kim, Kelvin Lee
  • Publication number: 20240182203
    Abstract: A tray with a first lateral panel having an unfolded position and a folded position. The first lateral panel has a top surface defining a first recess and a bottom surface. A second lateral panel has an unfolded position and a folded position. The second lateral panel has a top surface defining a second recess and a bottom surface. A center panel is positioned between the first panel and the second panel. The center panel has a top surface defining a cavity configured to receive one or more personal care products. A first fold line is located between the first lateral panel and the center panel. A second fold line is located between the second lateral panel and the center panel. The bottom surfaces of the first and second panels face each other in the folded position and do not face each other in the unfolded position.
    Type: Application
    Filed: December 2, 2022
    Publication date: June 6, 2024
    Inventors: Jeffrey Richard Holley, Jiong Hui Li, Kelvin Nguyen, Richard Kevin Sennett
  • Patent number: 11976003
    Abstract: A method of marking an optical fiber includes forming an ink stream, moving an optical fiber over a fiber path adjacent the ink stream, and intermittently deflecting the ink stream with a gas jet so that the optical fiber at least partially enters the deflected ink stream so that the ink from the deflected ink stream forms spaced apart marks on the optical fiber outer surface. An optical fiber marking apparatus is also disclosed that includes payout and take modules that move the optical fiber over the fiber path, a marking unit configured to form an ink stream adjacent the fiber path, and an ink stream deflection device that causes the ink stream to deflect and overlap the fiber path so that ink from the ink stream forms spaced apart marks on the outer surface of the optical fiber.
    Type: Grant
    Filed: July 30, 2020
    Date of Patent: May 7, 2024
    Assignee: Corning Incorporated
    Inventors: Krishna Prasad Ambuga Keshavamurthy, Aditya Kaimal, Kelvin Nguyen
  • Patent number: 11891330
    Abstract: The system and methods for marking an optical fiber with color-coded marks disclosed herein include forming closely spaced multiple ink streams, with at least two of the ink streams having different colors. The optical fiber moves over a fiber path that resides adjacent the ink streams. The fiber path and the ink streams are made to briefly intersect so that the ink streams form on the outer surface of the optical fiber a group of spaced apart individual marks, wherein the group of individual marks constitute a color-coded mark. Repeating this marking process at different times as the fiber moves over the fiber path forms spaced apart color-coded marks along the length of the fiber. Subsequent drying and overcoating of the marks fixes and protects the color-coded marks.
    Type: Grant
    Filed: December 31, 2020
    Date of Patent: February 6, 2024
    Assignee: Corning Incorporated
    Inventors: Aditya Kaimal, Kelvin Nguyen, Darren Andrew Stainer
  • Patent number: 11414344
    Abstract: The apparatus and methods include moving an optical fiber over a fiber path that includes a marking location at which resides a marking unit that dispenses an ink-jet stream. A centering method is performed whereby the optical fiber is incrementally moved in a lateral direction through the path of the ink-stream and the mark number density of marks formed on the optical fiber is measured along with the optical fiber position. A process window is defined by the range of lateral fiber positions over which a target mark number density is formed on a consistent basis. A controller calculates an optimum fiber path position and stores it memory for future reference while also moving the fiber path to the optimum position. The initially wet ink marks are dried and the fiber coated with a transparent protective overcoat to form a coated and marked optical fiber.
    Type: Grant
    Filed: July 16, 2020
    Date of Patent: August 16, 2022
    Assignee: Corning Incorporated
    Inventors: Steven Howard Dunn, Aditya Kaimal, Kelvin Nguyen
  • Patent number: 11287597
    Abstract: A method of marking an optical fiber is disclosed, wherein the method includes forming an ink stream, moving an optical fiber over a fiber path that resides adjacent the ink stream, and periodically changing the position of the fiber path so that the optical fiber at least partially enters the ink stream so that the ink from the ink stream forms spaced apart marks on the outer surface of the optical fiber. An optical fiber marking apparatus is also disclosed that includes payout and take modules that move the optical fiber over the fiber path, a marking unit configured to form an ink stream adjacent the fiber path, and a fiber positioning device that causes the optical fiber to periodically intersect the ink stream so that ink from the ink stream forms spaced apart marks on the outer surface of the optical fiber.
    Type: Grant
    Filed: December 16, 2019
    Date of Patent: March 29, 2022
    Assignee: Corning Incorporated
    Inventors: Aditya Kaimal, Kelvin Nguyen, Krishna Prasad Ambuga Keshavamurthy
  • Publication number: 20210206694
    Abstract: The system and methods for marking an optical fiber with color-coded marks disclosed herein include forming closely spaced multiple ink streams, with at least two of the ink streams having different colors. The optical fiber moves over a fiber path that resides adjacent the ink streams. The fiber path and the ink streams are made to briefly intersect so that the ink streams form on the outer surface of the optical fiber a group of spaced apart individual marks, wherein the group of individual marks constitute a color-coded mark. Repeating this marking process at different times as the fiber moves over the fiber path forms spaced apart color-coded marks along the length of the fiber. Subsequent drying and overcoating of the marks fixes and protects the color-coded marks.
    Type: Application
    Filed: December 31, 2020
    Publication date: July 8, 2021
    Inventors: Aditya Kaimal, Kelvin Nguyen, Darren Andrew Stainer
  • Patent number: 10968070
    Abstract: An apparatus for tensioning and threading an optical fiber includes a first roller, a second roller, a belt that wraps around the first and second rollers, and a third roller. The belt may be in direct physical contact with the first and second rollers. The third roller may be movable between an engaged and a disengaged configuration relative to the belt. Alternatively, the first roller, second roller, and belt may be movable between the engaged and the disengaged configuration relative to the third roller. Actuation from the disengaged to the engaged configuration captures an optical fiber between the third roller and the belt.
    Type: Grant
    Filed: December 6, 2018
    Date of Patent: April 6, 2021
    Assignee: Corning Incorporated
    Inventors: Kirk Patton Bumgarner, Bret Cooper Faler, Jason Thomas Fralin, Kelvin Nguyen, Ashley Danielle Perritt
  • Publication number: 20210039991
    Abstract: A method of marking an optical fiber includes forming an ink stream, moving an optical fiber over a fiber path adjacent the ink stream, and intermittently deflecting the ink stream with a gas jet so that the optical fiber at least partially enters the deflected ink stream so that the ink from the deflected ink stream forms spaced apart marks on the optical fiber outer surface. An optical fiber marking apparatus is also disclosed that includes payout and take modules that move the optical fiber over the fiber path, a marking unit configured to form an ink stream adjacent the fiber path, and an ink stream deflection device that causes the ink stream to deflect and overlap the fiber path so that ink from the ink stream forms spaced apart marks on the outer surface of the optical fiber.
    Type: Application
    Filed: July 30, 2020
    Publication date: February 11, 2021
    Inventors: Krishna Prasad Ambuga Keshavamurthy, Aditya Kaimal, Kelvin Nguyen
  • Publication number: 20210024413
    Abstract: The apparatus and methods include moving an optical fiber over a fiber path that includes a marking location at which resides a marking unit that dispenses an ink-jet stream. A centering method is performed whereby the optical fiber is incrementally moved in a lateral direction through the path of the ink-stream and the mark number density of marks formed on the optical fiber is measured along with the optical fiber position. A process window is defined by the range of lateral fiber positions over which a target mark number density is formed on a consistent basis. A controller calculates an optimum fiber path position and stores it memory for future reference while also moving the fiber path to the optimum position. The initially wet ink marks are dried and the fiber coated with a transparent protective overcoat to form a coated and marked optical fiber.
    Type: Application
    Filed: July 16, 2020
    Publication date: January 28, 2021
    Inventors: Steven Howard Dunn, Aditya Kaimal, Kelvin Nguyen
  • Patent number: 10899661
    Abstract: A glass article having a low level of grainy appearance that can appear to have a shift in the pattern of the grains with changing viewing angle of a display, or “sparkle.” The glass article—which, in some embodiments, is a transparent glass sheet—has small-angle-scattering properties and/or distinctness-of-reflected-image (DOI), leading to improved viewability in display applications, especially under high ambient lighting conditions. In some embodiments, the antiglare surface of the glass sheet is an etched surface, with no foreign coating present on the antiglare surface.
    Type: Grant
    Filed: December 11, 2018
    Date of Patent: January 26, 2021
    Assignee: CORNING INCORPORATED
    Inventors: Jacques Gollier, Shandon Dee Hart, Kelvin Nguyen, Alan Thomas Stephens, II, James Andrew West, Lu Zhang
  • Patent number: 10801883
    Abstract: The apparatus and methods include moving an optical fiber over a fiber path that includes a marking location at which resides a printer unit. The moving optical fiber has an amount of undamped fiber vibration that can exceed a fiber vibration tolerance at high fiber speeds. The printer unit is configured to dispense ink onto the optical fiber to form wet ink marks along the optical fiber as it moves past the marking location. The wet ink marks are dried and counted for quality control. The marked optical fiber is then covered with an overcoat to protect the ink marks. A position sensor measures an amount of vibration of the optical fiber substantially at the marking location. One or more vibration dampers disposed along the fiber path are used to reduce the fiber vibration below the fiber vibration tolerance. This allows for high-speed marking of the optical fiber.
    Type: Grant
    Filed: August 28, 2019
    Date of Patent: October 13, 2020
    Assignee: Corning Incorporated
    Inventors: Steven Howard Dunn, Aditya Kaimal, Kelvin Nguyen, Krishna Prasad Ambuga Keshavamurthy
  • Publication number: 20200215825
    Abstract: A method of marking an optical fiber is disclosed, wherein the method includes forming an ink stream, moving an optical fiber over a fiber path that resides adjacent the ink stream, and periodically changing the position of the fiber path so that the optical fiber at least partially enters the ink stream so that the ink from the ink stream forms spaced apart marks on the outer surface of the optical fiber. An optical fiber marking apparatus is also disclosed that includes payout and take modules that move the optical fiber over the fiber path, a marking unit configured to form an ink stream adjacent the fiber path, and a fiber positioning device that causes the optical fiber to periodically intersect the ink stream so that ink from the ink stream forms spaced apart marks on the outer surface of the optical fiber.
    Type: Application
    Filed: December 16, 2019
    Publication date: July 9, 2020
    Inventors: Aditya Kaimal, Kelvin Nguyen, Krishna Prasad Ambuga Keshavamurthy
  • Publication number: 20200088567
    Abstract: The apparatus and methods include moving an optical fiber over a fiber path that includes a marking location at which resides a printer unit. The moving optical fiber has an amount of undamped fiber vibration that can exceed a fiber vibration tolerance at high fiber speeds. The printer unit is configured to dispense ink onto the optical fiber to form wet ink marks along the optical fiber as it moves past the marking location. The wet ink marks are dried and counted for quality control. The marked optical fiber is then covered with an overcoat to protect the ink marks. A position sensor measures an amount of vibration of the optical fiber substantially at the marking location. One or more vibration dampers disposed along the fiber path are used to reduce the fiber vibration below the fiber vibration tolerance. This allows for high-speed marking of the optical fiber.
    Type: Application
    Filed: August 28, 2019
    Publication date: March 19, 2020
    Inventors: Steven Howard Dunn, Aditya Kaimal, Kelvin Nguyen, Krishna Prasad Ambuga Keshavamurthy
  • Publication number: 20190248703
    Abstract: A glass article having a low level of grainy appearance that can appear to have a shift in the pattern of the grains with changing viewing angle of a display, or “sparkle.” The glass article—which, in some embodiments, is a transparent glass sheet—has small-angle-scattering properties and/or distinctness-of-reflected-image (DOI), leading to improved viewability in display applications, especially under high ambient lighting conditions. In some embodiments, the antiglare surface of the glass sheet is an etched surface, with no foreign coating present on the antiglare surface.
    Type: Application
    Filed: December 11, 2018
    Publication date: August 15, 2019
    Inventors: Jacques Gollier, Shandon Dee Hart, Kelvin Nguyen, Alan Thomas Stephens, II, James Andrew West, Lu Zhang
  • Publication number: 20190193982
    Abstract: An apparatus for tensioning and threading an optical fiber includes a first roller, a second roller, a belt that wraps around the first and second rollers, and a third roller. The belt may be in direct physical contact with the first and second rollers. The third roller may be movable between an engaged and a disengaged configuration relative to the belt. Alternatively, the first roller, second roller, and belt may be movable between the engaged and the disengaged configuration relative to the third roller. Actuation from the disengaged to the engaged configuration captures an optical fiber between the third roller and the belt.
    Type: Application
    Filed: December 6, 2018
    Publication date: June 27, 2019
    Inventors: Kirk Patton Bumgarner, Bret Cooper Faler, Jason Thomas Fralin, Kelvin Nguyen, Ashley Danielle Perritt
  • Patent number: 10183889
    Abstract: A glass article having a low level of grainy appearance that can appear to have a shift in the pattern of the grains with changing viewing angle of a display, or “sparkle.” The glass article—which, in some embodiments, is a transparent glass sheet—has small-angle-scattering properties and/or distinctness-of-reflected-image (DOI), leading to improved viewability in display applications, especially under high ambient lighting conditions. In some embodiments, the antiglare surface of the glass sheet is an etched surface, with no foreign coating present on the antiglare surface.
    Type: Grant
    Filed: June 8, 2017
    Date of Patent: January 22, 2019
    Assignee: CORNING INCORPORATED
    Inventors: Jacques Gollier, Shandon Dee Hart, Kelvin Nguyen, Alan Thomas Stephens, II, James Andrew West, Lu Zhang
  • Publication number: 20170327418
    Abstract: A glass article having a low level of grainy appearance that can appear to have a shift in the pattern of the grains with changing viewing angle of a display, or “sparkle.” The glass article—which, in some embodiments, is a transparent glass sheet—has small-angle-scattering properties and/or distinctness-of-reflected-image (DOI), leading to improved viewability in display applications, especially under high ambient lighting conditions. In some embodiments, the antiglare surface of the glass sheet is an etched surface, with no foreign coating present on the antiglare surface.
    Type: Application
    Filed: June 8, 2017
    Publication date: November 16, 2017
    Inventors: Jacques Gollier, Shandon Dee Hart, Kelvin Nguyen, Alan Thomas Stephens, II, James Andrew West, Lu Zhang
  • Patent number: D1014289
    Type: Grant
    Filed: September 26, 2022
    Date of Patent: February 13, 2024
    Assignee: The Gillette Company LLC
    Inventors: Richard Kevin Sennett, Mariana Salazar Barreto, Jeffrey Richard Holley, Kelvin Nguyen
  • Patent number: D1054879
    Type: Grant
    Filed: December 2, 2022
    Date of Patent: December 24, 2024
    Assignee: The Gillette Company LLC
    Inventors: Jeffrey Richard Holley, Jiong Hui Li, Kelvin Nguyen, Richard Kevin Sennett