Patents by Inventor Li-Qing Zhang

Li-Qing Zhang 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: 10705427
    Abstract: A method of making a grating, the method including: providing a substrate, placing a first photoresist layer on the substrate, locating a second photoresist layer on the first photoresist layer, wherein a second exposure dose of the second photoresist layer is greater than a first exposure dose of the first photoresist layer; exposing the first photoresist layer and the second photoresist layer; developing the first photoresist layer and the second photoresist layer and removing an exposed photoresist to form a patterned photoresist layer and obtain an exposed surface of the substrate, wherein the patterned photoresist layer defines a plurality of top surfaces and a plurality of side surfaces, each adjacent top surface and side surface, and the exposed surface form a Z-type surface; depositing a preformed layer on the Z-type surface to form a Z-type structure; removing the patterned photoresist layer.
    Type: Grant
    Filed: June 7, 2018
    Date of Patent: July 7, 2020
    Assignees: Tsinghua University, HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Mo Chen, Li-Hui Zhang, Qun-Qing Li, Shou-Shan Fan
  • Patent number: 10622462
    Abstract: A method of making thin film transistor including: forming a gate electrode, forming a gate insulating layer on the gate electrode; locating a semiconductor layer on the gate insulating layer; placing stripe-shaped masks on the semiconductor layer, wherein the thickness of the stripe-shaped masks is H, the spacing distance between the stripe-shaped masks is L; depositing a first conductive film layer along a first direction, the thickness of the first conductive film layer is D, a first angle between the first direction and a direction along the thickness of the stripe-shaped masks is ?1, ?1<tan?1(L/H); depositing a second conductive film layer along a second direction, a second angle between the second direction and the direction along the thickness of the stripe-shaped masks is ?2, ?2<tan?1[L/(H+D)], 0<Htan?1+(H+D)tan?2?L<10 nm, the first conductive film layer forms a source electrode, the second conductive film layer forms a drain electrode.
    Type: Grant
    Filed: June 14, 2018
    Date of Patent: April 14, 2020
    Assignees: Tsinghua University, HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Mo Chen, Li-Hui Zhang, Qun-Qing Li, Shou-Shan Fan
  • Patent number: 10622209
    Abstract: A method of making nanoscale channels including: providing a substrate, locating a photoresist mask layer on the substrate, the thickness of the photoresist mask layer equals H; forming a patterned mask layer by exposing and developing the photoresist mask layer, the patterned mask layer includes a plurality of parallel and spaced stripe masks, the spacing between adjacent stripe masks equals L; depositing a first thin film layer on the substrate in a first direction, the thickness of the first thin film layer equals D, a first angle between the first direction and a direction in the thickness of the stripe masks equals ?1, ?1<tan?1(L/H); depositing a second thin film layer on the substrate in a second direction, a second angle between the second direction and the direction in the thickness of the stripe masks equals ?2, ?2<tan?1[L/(H+D)], 0<Htan?1+(H+D)tan?2?L<10 nm.
    Type: Grant
    Filed: June 14, 2018
    Date of Patent: April 14, 2020
    Assignees: Tsinghua University, HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Mo Chen, Li-Hui Zhang, Qun-Qing Li, Shou-Shan Fan
  • Patent number: 10567323
    Abstract: Collecting online group chat messages. An embodiment of the invention may include determining a received message satisfies at least one of a plurality of message collection rules. The embodiment may also include recording the received message to at least one of a plurality of message tables based on each of a plurality of chat participants mentioned in the received message. The embodiment may further include determining a first chat participant within the plurality of chat participants chooses to open a private chat session with a second chat participant within the plurality of chat participants. The embodiment may also include identifying a plurality of recorded messages within the plurality of message tables where the first chat participant typed a screen name or a given name for the second chat participant and where the second chat participant typed a screen name or a given name of the first chat participant.
    Type: Grant
    Filed: March 16, 2018
    Date of Patent: February 18, 2020
    Assignee: International Business Machines Corporation
    Inventors: Yan Lan, Qian Cheng Liao, Li Wang, Xiao Li Wang, Jun Qing Zhang
  • Patent number: 10553444
    Abstract: A method of making nanoscale belts including: providing a semiconductor thin film, placing stripe masks on the semiconductor thin film, the thickness of the stripe masks is H, the spacing distance between adjacent stripe masks is L; depositing a first thin film layer along a first direction, the thickness of the first thin film layer is D, a first angle between first direction and a direction along thickness of the stripe masks is ?1, ?1<tan?1(L/H); depositing a second thin film layer along a second direction, a second angle between second direction and the direction along thickness of the stripe masks is ?2, ?2<tan?1[L/(H+D)], 0<L?H tan ?1?(H+D)tan ?2<10 nm, the first thin film layer partly overlaps with the second thin film layer to form an overlapping structure; dry etching the first thin film layer and the second thin film layer to obtain a nanoscale microstructure; etching the semiconductor thin film.
    Type: Grant
    Filed: June 14, 2018
    Date of Patent: February 4, 2020
    Assignees: Tsinghua University, HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Mo Chen, Li-Hui Zhang, Qun-Qing Li, Shou-Shan Fan
  • Patent number: 10418253
    Abstract: A method of making nanostructures including: locating a photoresist mask layer on a substrate, the thickness of the photoresist mask layer is H; forming a patterned mask layer includes a plurality of stripe masks, a spacing distance between adjacent stripe masks equals L; depositing a first thin film layer along a first direction, the thickness of the first thin film layer is D, a first angle between the first direction and a direction along the thickness of stripe masks is ?1, ?1<tan?1(L/H); depositing a second thin film layer along a second direction, a second angle between the second direction and the direction along the thickness of stripe masks is ?2, ?2<tan?1[L/(H+D)], 0<L?H tan ?1?(H+D)tan?2<10 nm, the first thin film layer partly overlaps with the second thin film layer to form an overlapping structure; etching the first thin film layer and the second thin film layer to obtain a nanoscale microstructure.
    Type: Grant
    Filed: June 14, 2018
    Date of Patent: September 17, 2019
    Assignees: Tsinghua University, HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Mo Chen, Li-Hui Zhang, Qun-Qing Li, Shou-Shan Fan
  • Publication number: 20110011552
    Abstract: An apparatus for fabricating the magnesium-based alloy includes a transferring device, a thixomolding machine, and an electromagnetic stirring device. The transferring device includes a feed inlet. The thixomolding machine includes a heating barrel having a first end and a second end, a nozzle disposed at the first end. The electromagnetic stirring device includes an electromagnetic induction coil disposed on an outer wall of the heating barrel.
    Type: Application
    Filed: September 28, 2010
    Publication date: January 20, 2011
    Applicants: TSINGHUA UNIVERSITY, HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: KAM-SHAU CHAN, CHENG-SHI CHEN, LI-QING ZHANG, WEN-ZHEN LI
  • Patent number: 7824461
    Abstract: A method for fabricating a magnesium-based alloy includes the steps of: (a) mixing a number of carbon nanotubes with a number of magnesium particles; (b) heating the mixture in a protective gas to achieve a semi-solid-state paste; (c) stirring the semi-solid-paste using an electromagnetic stirring force to disperse the carbon nanotubes into the paste; (d) injecting the semi-solid-state paste into a die; and (e) cooling the semi-solid-state paste to achieve a magnesium-based alloy. An apparatus for fabricating the magnesium-based alloy includes a transferring device, a thixomolding machine, and an electromagnetic stirring device. The transferring device includes a feed inlet. The thixomolding machine includes a heating barrel having two ends, a nozzle disposed at a first end thereof, and an material input positioned at a second end thereof. The electromagnetic stirring device includes an electromagnetic induction coil disposed on an outer wall of the heating barrel.
    Type: Grant
    Filed: August 28, 2008
    Date of Patent: November 2, 2010
    Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.
    Inventors: Kam-Shau Chan, Cheng-Shi Chen, Li-Qing Zhang, Wen-Zhen Li
  • Publication number: 20090146098
    Abstract: The present invention relates to a powder extinguishing agent used for extinguishing fires of burning light metals. The powder extinguishing agent includes: potassium chloride in an amount from 40% to 50% by weight, sodium chloride in an amount from 45% to 55% by weight, and calcium fluoride in an amount from 2% to 8% by weight. The present invention also relates to a method for manufacturing the powder extinguishing agent.
    Type: Application
    Filed: August 6, 2008
    Publication date: June 11, 2009
    Applicants: Fu Zhun Precision Industry (Shen Zhen) Co., Ltd., Foxconn Technology Co., Ltd.
    Inventors: Guang-Liang Sheu, Li-Qing Zhang
  • Publication number: 20090056499
    Abstract: A method for fabricating a magnesium-based alloy includes the steps of: (a) mixing a number of carbon nanotubes with a number of magnesium particles; (b) heating the mixture in a protective gas to achieve a semi-solid-state paste; (c) stirring the semi-solid-paste using an electromagnetic stirring force to disperse the carbon nanotubes into the paste; (d) injecting the semi-solid-state paste into a die; and (e) cooling the semi-solid-state paste to achieve a magnesium-based alloy. An apparatus for fabricating the magnesium-based alloy includes a transferring device, a thixomolding machine, and an electromagnetic stirring device. The transferring device includes a feed inlet. The thixomolding machine includes a heating barrel having two ends, a nozzle disposed at a first end thereof, and an material input positioned at a second end thereof. The electromagnetic stirring device includes an electromagnetic induction coil disposed on an outer wall of the heating barrel.
    Type: Application
    Filed: August 28, 2008
    Publication date: March 5, 2009
    Applicants: TSINGHUA UNIVERSITY, HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: KAM-SHAU CHAN, CHENG-SHI CHEN, LI-QING ZHANG, WEN-ZHEN LI