Patents by Inventor Zheng Duan

Zheng Duan 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: 12237312
    Abstract: A light-emitting diode (LED) packaging module includes a plurality of LED chips spaced apart from one another, an encapsulating layer that fills in a space among the LED chips, a light-transmitting layer disposed on the encapsulating layer, a wiring assembly disposed on and electrically connected to the LED chips, and an insulation component that covers the encapsulating layer and the wiring assembly. Each of the LED chips includes an electrode assembly including first and second electrodes. The light-transmitting layer includes a light-transmitting layer that has a light transmittance greater than that of the encapsulating layer.
    Type: Grant
    Filed: March 10, 2022
    Date of Patent: February 25, 2025
    Assignee: QUANZHOU SANAN SEMICONDUCTOR TECHNOLOGY CO., LTD.
    Inventors: Shuning Xin, Chen-Ke Hsu, Aihua Cao, Junpeng Shi, Weng-Tack Wong, Yanqiu Liao, Zhen-Duan Lin, Changchin Yu, Chi-Wei Liao, Zheng Wu, Chia-En Lee
  • Patent number: 12230612
    Abstract: A light-emitting diode (LED) packaging module includes light-emitting units arranged in an array having m row(s) and n column(s), an encapsulating layer, and a wiring assembly, where m and n each independently represents a positive integer. Each of the light-emitting units includes LED chips each including a chip first surface, a chip second surface, a chip side surface, and an electrode assembly disposed on the chip second surface. The encapsulating layer covers the chip side surface and fills a space among the LED chips. The wiring assembly is disposed on the chip second surface and is electrically connected to the electrode assembly.
    Type: Grant
    Filed: March 10, 2022
    Date of Patent: February 18, 2025
    Assignee: QUANZHOU SANAN SEMICONDUCTOR TECHNOLOGY CO., LTD.
    Inventors: Shuning Xin, Zhen-Duan Lin, Yanqiu Liao, Junpeng Shi, Aihua Cao, Changchin Yu, Chen-Ke Hsu, Chi-Wei Liao, Chia-En Lee, Zheng Wu
  • Patent number: 12230611
    Abstract: A light-emitting device includes a number (N) of light-emitting units, a number (a) of first metal pads and a number (b) of second metal pads. Each of the light-emitting units includes a number (n) of light-emitting chips each having two distinct terminals, where N and n are integers and N>1, n>?3. The numbers (a) and (b) are integers and a>1, b>1, and the terminals of each of the light-emitting chips are electrically connected to a unique combination of one of the number (a) of first metal pads and a number (b) of second metal pads, respectively. The numbers (N), (n), (a) and (b) satisfy the equation: a*b=n*N.
    Type: Grant
    Filed: February 8, 2022
    Date of Patent: February 18, 2025
    Assignee: QUANZHOU SANAN SEMICONDUCTOR TECHNOLOGY CO., LTD.
    Inventors: Yanqiu Liao, Junpeng Shi, Shuning Xin, Chen-ke Hsu, Zhen-duan Lin, Changchin Yu, Aihua Cao, Chi-Wei Liao, Zheng Wu, Chia-en Lee
  • Publication number: 20240361531
    Abstract: Provided in the present disclosure are a grating structure, a preparation method thereof and a display device. The preparation method of the grating structure includes: forming a plurality of first convex structures arranged in a first direction; and forming a first rubber material at least covering the plurality of first convex structures, and forming the grating structure including a plurality of second convex structures by using convex structures including the first convex structures and the first rubber material, wherein a surface of the first rubber material facing away from the first convex structures is a flat surface, and the convex structures including the first convex structures and the first rubber material are in one-to-one correspondence with the second convex structures, shapes of cross sections of the second convex structures in the first direction are triangles, and the second convex structures have at least one inclined flat surface.
    Type: Application
    Filed: May 27, 2022
    Publication date: October 31, 2024
    Inventors: Duohui LI, Hong CHEN, Mengya SONG, Dongliang ZHANG, Xiao ZHANG, Zheng DUAN, Kang GUO, Xin GU
  • Patent number: 11991813
    Abstract: A consumable cartridge for a plasma arc torch is provided. The consumable cartridge includes an outer component defining a substantially hollow body, an inner component disposed substantially within the hollow body of the outer component, and a hollow region between the rear portion of the inner component and the outer component. The inner component includes a forward portion configured to axially secure and rotatatably engage the outer component to the inner component and a rear portion substantially suspended within the hollow body of the outer component. The rear portion is axially secured and rotatably engaged with the outer component via the forward portion. The hollow region is configured to receive a torch head to enable mating between the rear portion of the inner component and a cathode of the torch head.
    Type: Grant
    Filed: May 15, 2019
    Date of Patent: May 21, 2024
    Assignee: Hypertherm, Inc.
    Inventors: Yu Zhang, Zheng Duan, Mahyar Esmaili, Mike Kornprobst, Brett Hansen, Garrett Quillia
  • Publication number: 20240012189
    Abstract: The present application provides a polarizer, a manufacturing method thereof, a display panel and a display apparatus. The polarizer includes an antireflection layer, a first support layer and a grating layer stacked in sequence along a light incidence direction. The grating layer includes a plurality of first grating strips spaced apart. The first support layer includes a plurality of first support strips spaced apart and a plurality of second support strips disposed between any two adjacent first support strips, and the first support strips are disposed corresponding to the first grating strips. The antireflection layer includes a plurality of second grating strips spaced apart, and the second grating strips are disposed corresponding to the first grating strips. The antireflection layer, the first support layer and the grating layer form an optical resonant cavity structure, or, the antireflection layer is configured to absorb light reflected by the grating layer. A display panel includes the polarizer.
    Type: Application
    Filed: February 25, 2021
    Publication date: January 11, 2024
    Inventors: Duohui LI, Zheng DUAN, Xiao ZHANG, Mengya SONG, Zhen LIU, Yong MA, Kang GUO, Xin GU
  • Patent number: 11770891
    Abstract: A cartridge for an air-cooled plasma arc torch is provided. The cartridge includes a swirl ring having a molded thermoplastic elongated body with a distal end, a proximal end, and a hollow portion configured to receive an electrode. The swirl ring also has a plurality of gas flow openings defined by the distal end of the elongated body and configured to impart a swirling motion to a plasma gas flow for the plasma arc torch. The swirl ring further includes a nozzle retention feature on a surface of the elongated body at the distal end for retaining a nozzle to the elongated body. The cartridge further includes a cap affixed to the proximal end of the elongated body of the swirl ring for substantially closing the proximal end of the elongated body.
    Type: Grant
    Filed: May 6, 2019
    Date of Patent: September 26, 2023
    Assignee: Hypertherm, Inc.
    Inventors: Yu Zhang, Zheng Duan, Mahyar Esmaili, Mike Kornprobst, Brett Hansen, Garrett Quillia
  • Publication number: 20230271268
    Abstract: An adapter for a plasma arc torch comprising a torch body is provided. The adapter includes a body defining a longitudinal axis between a proximal end and a distal end and at least one protruding portion extending from the proximal end of the body. The at least one protruding portion is configured to be inserted into a cavity of the torch body to physically engage a switch inside of the cavity. The engagement of the switch is adapted to indicate installation of a consumable component in the plasma arc torch.
    Type: Application
    Filed: May 10, 2023
    Publication date: August 31, 2023
    Inventors: Yu Zhang, Zheng Duan, Stephen T. Eickhoff, Garrett K. Quillia, Brett Hansen
  • Patent number: 11684995
    Abstract: An adapter for a plasma arc torch comprising a torch body is provided. The adapter includes a body defining a longitudinal axis between a proximal end and a distal end and at least one protruding portion extending from the proximal end of the body. The at least one protruding portion is configured to be inserted into a cavity of the torch body to physically engage a switch inside of the cavity. The engagement of the switch is adapted to indicate installation of a consumable component in the plasma arc torch.
    Type: Grant
    Filed: September 29, 2020
    Date of Patent: June 27, 2023
    Assignee: Hypertherm, Inc.
    Inventors: Yu Zhang, Zheng Duan, Stephen T. Eickhoff, Garrett K. Quillia, Brett Hansen
  • Patent number: 11477854
    Abstract: A method for controlling interfacial thermal resistance is provided. The method includes: providing a metallic thermal conductor and a non-metallic thermal conductor, the metallic thermal conductor and the non-metallic thermal conductor are in direct contact with each other to form an interface; and varying an electric field at the interface to modulate the interfacial thermal resistance at the interface.
    Type: Grant
    Filed: December 25, 2018
    Date of Patent: October 18, 2022
    Assignees: Tsinghua University, HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Zheng Duan, Chang-Hong Liu, Shou-Shan Fan
  • Patent number: 11432393
    Abstract: A consumable cartridge for a plasma arc torch is provided. The consumable cartridge includes an outer component defining a substantially hollow body, an inner component disposed substantially within the hollow body of the outer component, and a hollow region between the rear portion of the inner component and the outer component. The inner component includes a forward portion configured to axially secure and rotatatably engage the outer component to the inner component and a rear portion substantially suspended within the hollow body of the outer component. The rear portion is axially secured and rotatably engaged with the outer component via the forward portion. The hollow region is configured to receive a torch head to enable mating between the rear portion of the inner component and a cathode of the torch head.
    Type: Grant
    Filed: November 7, 2019
    Date of Patent: August 30, 2022
    Assignee: HYPERTHERM, INC.
    Inventors: Zheng Duan, Stephen T. Eickhoff, Yu Zhang, Jesse A. Roberts, Eric Streit, Brandon Mason, Dennis Kulakowski
  • Publication number: 20210136905
    Abstract: A consumable cartridge for a plasma arc torch includes a cartridge frame having a first end and a second end opposite the first end, the first and second ends defining a longitudinal axis, the second end including a plurality of discrete retaining features. The consumable cartridge includes an electrically conductive contact element secured to the cartridge frame by the plurality of discrete retaining features and translatable up to a predetermined distance within the cartridge frame along the longitudinal axis at the second end, the contact element having a core, a proximal surface, and a distal surface. The proximal surface is shaped to contact a torch plunger of the plasma arc torch upon installation into the plasma arc torch and the distal surface is shaped to contact an electrode of the plasma arc torch during an operation of the plasma arc torch.
    Type: Application
    Filed: January 11, 2021
    Publication date: May 6, 2021
    Inventors: Yu Zhang, Jesse A. Roberts, Zheng Duan, Michael Scheller, David Agan, Steven Moody, Stephen T. Eickhoff, Garrett K. Quillia
  • Patent number: 10912183
    Abstract: A consumable cartridge for a plasma arc torch includes a cartridge frame having a first end and a second end opposite the first end, the first and second ends defining a longitudinal axis, the second end including a plurality of discrete retaining features. The consumable cartridge includes an electrically conductive contact element secured to the cartridge frame by the plurality of discrete retaining features and translatable up to a predetermined distance within the cartridge frame along the longitudinal axis at the second end, the contact element having a core, a proximal surface, and a distal surface. The proximal surface is shaped to contact a torch plunger of the plasma arc torch upon installation into the plasma arc torch and the distal surface is shaped to contact an electrode of the plasma arc torch during an operation of the plasma arc torch.
    Type: Grant
    Filed: February 9, 2018
    Date of Patent: February 2, 2021
    Assignee: Hypertherm, Inc.
    Inventors: Yu Zhang, Jesse A. Roberts, Zheng Duan, Michael Scheller, David Agan, Steven Moody, Stephen T. Eickhoff, Garrett K. Quillia
  • Publication number: 20210029814
    Abstract: An adapter for a plasma arc torch comprising a torch body is provided. The adapter includes a body defining a longitudinal axis between a proximal end and a distal end and at least one protruding portion extending from the proximal end of the body. The at least one protruding portion is configured to be inserted into a cavity of the torch body to physically engage a switch inside of the cavity. The engagement of the switch is adapted to indicate installation of a consumable component in the plasma arc torch.
    Type: Application
    Filed: September 29, 2020
    Publication date: January 28, 2021
    Inventors: Yu Zhang, Zheng Duan, Stephen T. Eickhoff, Garrett K. Quillia, Brett Hansen
  • Patent number: 10866039
    Abstract: A thermal transistor is provided. The thermal transistor includes a metallic thermal conductor, a non-metallic thermal conductor, and a thermal resistance adjusting unit. The metallic thermal conductor and the non-metallic thermal conductor are contact with each other to form a thermal interface. The thermal resistance adjusting unit is configured to generate an bias voltage U12 between the metallic thermal conductor and the non-metallic thermal conductor.
    Type: Grant
    Filed: December 25, 2018
    Date of Patent: December 15, 2020
    Assignees: Tsinghua University, HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Zheng Duan, Chang-Hong Liu, Shou-Shan Fan
  • Patent number: 10859329
    Abstract: A thermal transistor is provided. The thermal transistor includes a metallic thermal conductor, a non-metallic thermal conductor, and a thermal resistance adjusting unit. The metallic thermal conductor and the non-metallic thermal conductor are contact with each other to form a thermal interface. The thermal resistance adjusting unit is configured to generate an electric field at the thermal interface.
    Type: Grant
    Filed: December 25, 2018
    Date of Patent: December 8, 2020
    Assignees: Tsinghua University, HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Zheng Duan, Chang-Hong Liu, Shou-Shan Fan
  • Patent number: 10820401
    Abstract: In some aspects, methods for controlling a plasma arc in a plasma torch of a plasma cutting system in a low operating current mode can include: receiving, by a computing device within the plasma power supply, a command to begin a plasma processing operation; generating a pilot arc command to generate a pilot arc within the plasma torch, the generating of the pilot arc command including directing an electrical signal and a gas flow to the plasma torch, the electrical signal being configured to generate the pilot arc at a current having a first arc amperage magnitude; and generating an operational arc command to facilitate a transition from the pilot arc to an operational plasma arc, the generating of the operational arc command including adjusting the current directed to the plasma torch to be a second arc amperage magnitude that is lower than the first arc amperage magnitude.
    Type: Grant
    Filed: August 25, 2017
    Date of Patent: October 27, 2020
    Assignee: Hypertherm, Inc.
    Inventors: Shreyansh Patel, Qinghua Liu, Junsong Mao, Richard Pavlik, Zheng Duan, Bruce P. Altobelli
  • Patent number: 10772183
    Abstract: In some aspects, methods of disengaging a plasma control circuit within a plasma arc torch of a plasma processing system to place the torch into a safety-locked mode can include providing: a plasma control circuit configured to convey a current from the plasma cutting system through the plasma arc torch to one or more consumables disposed in the torch and an operator interface switch connected to the plasma control circuit and configured to initiate generation of a plasma arc from the plasma arc torch; and activating a switch, separate from the operator interface switch, disposed on the torch and connected to the plasma control circuit to disconnect the plasma control circuit to limit the current, including pilot current, from flowing to the one or more consumables.
    Type: Grant
    Filed: January 12, 2018
    Date of Patent: September 8, 2020
    Assignee: Hypertherm, Inc.
    Inventors: Jing Wu, Bruce P. Altobelli, Zheng Duan, Dennis M. Borowy, Junsong Mao
  • Patent number: 10737347
    Abstract: A connector component configured for coupling a consumable component to a plasma arc torch is provided. The connector component comprises a body having a proximal end and a distal end disposed along and defining a longitudinal axis. The connector component includes at least two engagement regions disposed radially about the longitudinal axis on a surface of the body. Each engagement region includes at least one engagement feature disposed on the surface of the body. The connector component also includes at least two free regions disposed radially about the longitudinal axis on the surface of the body. Each free region is radially located between a pair of the engagement regions and characterized by an absence of the engagement feature.
    Type: Grant
    Filed: February 26, 2018
    Date of Patent: August 11, 2020
    Assignee: Hypertherm, Inc.
    Inventors: Harshawardhan Jogdand, E. Michael Shipulski, David J. Cook, David L. Bouthillier, Zheng Duan, Jesse A. Roberts, Micah Roberts, Stephen M. Dunbar, Peter J. Twarog, Brian J. Currier, Stephen M. Liebold, Brett A. Hansen, Garrett K. Quillia
  • Patent number: RE49153
    Abstract: A component for a plasma arc torch includes a body portion, a tapered surface on the body portion, the tapered surface including a compressible member that provides a disengagement force relative to the body portion, and an axially disposed surface on the body portion for coupling a mating surface on an adjacent structure of the torch. The component can be a nozzle and/or an electrode.
    Type: Grant
    Filed: October 2, 2020
    Date of Patent: July 26, 2022
    Assignee: Hypertherm, Inc.
    Inventors: Jon W. Lindsay, Brent R. Bartlett, Aaron D. Brandt, Zheng Duan, Stephen M. Liebold