Patents by Inventor Xiaoqi Liu

Xiaoqi Liu 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: 20240121997
    Abstract: Provided are a display substrate, a preparation method thereof and a display apparatus. The display substrate includes a first semi-conductive layer, a first conductive layer, a second conductive layer, a second semi-conductive layer, a third conductive layer, an interlayer insulating layer and an organic layer stacked on a substrate. The first semi-conductive layer includes an active layer of a polysilicon transistor, the first conductive layer includes a gate electrode of a polysilicon transistor and a first electrode plate of a storage capacitor, the second conductive layer includes a second electrode plate of a storage capacitor, the second semi-conductive layer includes an active layer of an oxide transistor, and the third conductive layer includes a gate electrode of an oxide transistor.
    Type: Application
    Filed: April 28, 2021
    Publication date: April 11, 2024
    Inventors: Xiaoqi DING, Peng HUANG, Ke LIU, Tao GAO, Xinlei YANG, Guoyi CUI, Zeliang LI, Hui LU
  • Patent number: 11726762
    Abstract: A method (50) of and a server (19) and network node or client devices (3, 5) communicatively interconnected in a network (1) and arranged for over-the-air, OTA, data upgrade or update of client devices. In the event of a timeout (54) at the server (19) waiting for a response or request message from a selected OTA client (5) during an ongoing OTA data upgrade, the OTA server (19) checks whether a network address change (51) of the selected OTA client (5) caused the OTA server to timeout.
    Type: Grant
    Filed: March 21, 2019
    Date of Patent: August 15, 2023
    Assignee: SIGNIFY HOLDING B.V.
    Inventors: Xiaoqi Liu, Shouzhen Lan, Dunfa Chen, Junxi Wu
  • Publication number: 20220221600
    Abstract: A radiation detector comprising a transistor, e.g. a FET, formed of one or more organic semiconductor materials having a neutron sensitizer element dispersed therein. The sensitizer element is one or more elements selected from the group consisting of boron, cadmium, lithium and gadolinium. The semiconductor device comprises a diode, a transistor (e.g. a Field Effect Transistor) or a non-rectifying, symmetric, semiconductor device. The organic semiconductor materials comprise a donor organic semiconductor material and an acceptor organic semiconductor material or a combination of organic and inorganic donor- acceptor materials.
    Type: Application
    Filed: April 9, 2020
    Publication date: July 14, 2022
    Applicant: QUEEN MARY UNIVERSITY OF LONDON
    Inventors: Theo KREOUZIS, Cozmin TIMIS, William GILLIN, Adrian BEVAN, Xiaoqi LIU
  • Patent number: 11313477
    Abstract: The present disclosure relates to a DBB forced sealing valve and an operating mechanism, including a valve body, a valve seat, a valve core arranged in the valve body, upper sealing member driving part and lower sealing member driving part arranged in the valve body and located on either side of the valve core, and the sealing members arranged between the valve seats and the upper sealing member driving part and the lower sealing member driving part. Wherein, the upper sealing member driving part and the lower sealing member driving part can move along the rotation axis of the valve core, and the upper sealing member driving part and the lower sealing member driving part drive the sealing members to press against or to retract from the valve seats.
    Type: Grant
    Filed: December 11, 2020
    Date of Patent: April 26, 2022
    Inventors: Zhigang Liu, Jimeng Chen, Xiaoqi Liu
  • Publication number: 20210095770
    Abstract: The present disclosure relates to a DBB forced sealing valve and an operating mechanism, including a valve body, a valve seat, a valve core arranged in the valve body, upper sealing member driving part and lower sealing member driving part arranged in the valve body and located on either side of the valve core, and the sealing members arranged between the valve seats and the upper sealing member driving part and the lower sealing member driving part. Wherein, the upper sealing member driving part and the lower sealing member driving part can move along the rotation axis of the valve core, and the upper sealing member driving part and the lower sealing member driving part drive the sealing members to press against or to retract from the valve seats.
    Type: Application
    Filed: December 11, 2020
    Publication date: April 1, 2021
    Inventors: Zhigang Liu, Jimeng Chen, Xiaoqi Liu
  • Patent number: 10920893
    Abstract: The present disclosure relates to a cage reset planetary roller screw device comprising a male thread member provided with a male thread and a female thread member provided with a female thread, a number of planetary rollers disposed between the male thread and the female thread. The planetary rollers are disposed between the male thread and the female thread through a cage, and the planetary rollers are disposed in roller retaining pockets of the cage. The side surfaces of the cage are provided with convex ends. The male thread member and/or the female thread member are provided with limit blocks that are in contact with the convex ends of the cage in the circumferential direction of the cage.
    Type: Grant
    Filed: October 11, 2019
    Date of Patent: February 16, 2021
    Assignee: Zibo Votaisi Petrochemical Equipment Co., Ltd
    Inventors: Jimeng Chen, Xiaoqi Liu, Xiaoxuan Liu
  • Publication number: 20210011705
    Abstract: A method (50) of and a server (19) and network node or client devices (3, 5) communicatively interconnected in a network (1) and arranged for over-the-air, OTA, data upgrade or update of client devices. In the event of a timeout (54) at the server (19) waiting for a response or request message from a selected OTA client (5) during an on-going OTA data upgrade, the OTA server (19) checks whether a network address change (51) of the selected OTA client (5) caused the OTA sewer to timeout.
    Type: Application
    Filed: March 21, 2019
    Publication date: January 14, 2021
    Inventors: Xiaoqi LIU, Shouzhen LAN, Dunfa CHEN, Junxi WU
  • Patent number: 10859169
    Abstract: The disclosure relates to a valve seat driven forced seal ball valve including a valve body, a first seat, a ball and a stem. The stem drives the ball to rotate between an open and a closed positions. The stem also drives the first seat towards and away from the ball. When the ball is in closed position, the first seat presses against the ball to achieve a forced seal. The first seat is driven towards and away from the ball by a first seat drive ring. The first seat drive ring is provided with female threads and the first seat is provided with male threads. The first drive ring drives the first seat towards and away from the ball by a screw connection.
    Type: Grant
    Filed: July 19, 2019
    Date of Patent: December 8, 2020
    Assignee: Zibo Votaisi Petrochemical Equipment Co., Ltd
    Inventors: Jimeng Chen, Xiaoqi Liu
  • Publication number: 20200041010
    Abstract: The present disclosure relates to a cage reset planetary roller screw device comprising a male thread member provided with a male thread and a female thread member provided with a female thread, a number of planetary rollers disposed between the male thread and the female thread. The planetary rollers are disposed between the male thread and the female thread through a cage, and the planetary rollers are disposed in roller retaining pockets of the cage. The side surfaces of the cage are provided with convex ends. The male thread member and/or the female thread member are provided with limit blocks that are in contact with the convex ends of the cage in the circumferential direction of the cage.
    Type: Application
    Filed: October 11, 2019
    Publication date: February 6, 2020
    Inventors: Jimeng Chen, Xiaoqi Liu, Xiaoxuan Liu
  • Publication number: 20190338857
    Abstract: The disclosure relates to a valve seat driven forced seal ball valve including a valve body, a first seat, a ball and a stem. The stem drives the ball to rotate between an open and a closed positions. The stem also drives the first seat towards and away from the ball. When the ball is in closed position, the first seat presses against the ball to achieve a forced seal. The first seat is driven towards and away from the ball by a first seat drive ring. The first seat drive ring is provided with female threads and the first seat is provided with male threads. The first drive ring drives the first seat towards and away from the ball by a screw connection.
    Type: Application
    Filed: July 19, 2019
    Publication date: November 7, 2019
    Inventors: Jimeng Chen, Xiaoqi Liu
  • Patent number: 10415711
    Abstract: The invention relates to a mechanical energized sealing ball valve comprising a seat, a ball assembly, and a single valve stem that operates both the sealing member and the ball. The ball comprises a ball and a sealing member. The valve stem drives the ball to rotate between open position and close position. When the ball reaches the close position, the sealing member, operated by the same valve stem, moves away from the ball to press and sit against the seat. The invention has the advantages that: the valve has a compact structure, the friction-free on/off is achieved, the mechanical energized sealing force is even and reliable, the ball is retracted and locked in the opening position to protect against turbulence-induced damage, low operating torque, the open/close operation is rapid, and the valve stem seal operates simply and reliably.
    Type: Grant
    Filed: January 16, 2018
    Date of Patent: September 17, 2019
    Assignee: Zibo Votaisi Petrochemical Equipment Co., Ltd
    Inventor: Xiaoqi Liu
  • Publication number: 20180135763
    Abstract: The invention relates to a mechanical energized sealing ball valve comprising a seat, a ball assembly, and a single valve stem that operates both the sealing member and the ball. The ball comprises a ball and a sealing member. The valve stem drives the ball to rotate between open position and close position. When the ball reaches the close position, the sealing member, operated by the same valve stem, moves away from the ball to press and sit against the seat. The invention has the advantages that: the valve has a compact structure, the friction-free on/off is achieved, the mechanical energized sealing force is even and reliable, the ball is retracted and locked in the opening position to protect against turbulence-induced damage, low operating torque, the open/close operation is rapid, and the valve stem seal operates simply and reliably.
    Type: Application
    Filed: January 16, 2018
    Publication date: May 17, 2018
    Inventor: Xiaoqi Liu
  • Patent number: 9903483
    Abstract: The invention relates to a mechanical energized sealing ball valve comprising a seat, a ball assembly, and a valve stem. The ball comprises a ball and a sealing member. The valve stem drives the ball to rotate between open position and close position. When the ball reaches the close position, the sealing member jacks up from the ball to press and sit against the seat. The invention has the advantages that: the valve has a compact structure, the friction-free on/off is achieved, the mechanical energized sealing force is even and reliable, the ball is retracted and locked in the opening position to protect against turbulence-induced damage, low operating torque, the open/close operation is rapid, and the valve stem seal operates simply and reliably.
    Type: Grant
    Filed: August 16, 2017
    Date of Patent: February 27, 2018
    Assignee: Zibo Votaisi Petrochemical Equipment Co., Ltd
    Inventor: Xiaoqi Liu
  • Publication number: 20170343120
    Abstract: The invention relates to a mechanical energized sealing ball valve comprising a seat, a ball assembly, and a valve stem. The ball comprises a ball and a sealing member. The valve stem drives the ball to rotate between open position and close position. When the ball reaches the close position, the sealing member jacks up from the ball to press and sit against the seat. The invention has the advantages that: the valve has a compact structure, the friction-free on/off is achieved, the mechanical energized sealing force is even and reliable, the ball is retracted and locked in the opening position to protect against turbulence-induced damage, low operating torque, the open/close operation is rapid, and the valve stem seal operates simply and reliably.
    Type: Application
    Filed: August 16, 2017
    Publication date: November 30, 2017
    Inventor: Xiaoqi Liu
  • Patent number: 9123359
    Abstract: A magnetic recording transducer for use in a data storage device is described. The transducer has a main writer pole and magnetic shields adjacent to the main writer pole. The magnetic shields include a first plated soft ferromagnetic layer, a second plated soft ferromagnetic layer, and an antiferromagnetic coupling (AFC) trilayer between the first plated soft ferromagnetic layer and the second plated soft ferromagnetic layer. The AFC trilayer includes a first AFC layer of sputtered ferromagnetic material; a second AFC layer of a nonmagnetic antiferromagnetic exchange material, and a third AFC layer of sputtered ferromagnetic material. Shields with AFC trilayers in leading, side, and/or trailing shields, as well as between shields are provided. A method of fabricating is also provided.
    Type: Grant
    Filed: December 22, 2010
    Date of Patent: September 1, 2015
    Assignee: Western Digital (Fremont), LLC
    Inventors: Dehua Han, Ming Sun, Feng Liu, Jinqiu Zhang, Shaoping Li, Lieping Zhong, Xiaoqi Liu, Tao Pan