Patents by Inventor Ruiqin ZHANG

Ruiqin 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).

  • Publication number: 20230282424
    Abstract: A method for fabricating a film on a substrate and a method for controlling the heating rate of a plurality of nanoparticles to transform the plurality of nanoparticles into a plurality of nanorods and nano-cone structures includes the steps of providing a sol precursor, providing a substrate, depositing the sol precursor onto the substrate via a sol-gel technique, annealing the sol precursor under ambient pressure at a controlled heating rate, and cooling down the sol precursor to form a film.
    Type: Application
    Filed: March 1, 2023
    Publication date: September 7, 2023
    Inventors: Ruiqin Zhang, Rafiqat Ui Rasool
  • Publication number: 20230272965
    Abstract: The present application relates to the field of refrigeration, and provides door assembly and refrigeration equipment. The door assembly includes: a door leaf, including a first door body and a second door body, where the first door body is configured to be rotatably connected to an installation part, and the second door body is configured to move toward an opening side or a hinged side of the first door body with respect to the first door body to switch between a sealing position and an avoidance position; the door leaf is configured to switch between a closing state in which the second door body is in the sealing position and an opening state; the second door body is in the avoidance position when the door leaf is switched between the closing state and the opening state. When the door leaf is in a closing state, the second door body is in the sealing position to ensure the sealing effect of the door leaf.
    Type: Application
    Filed: December 31, 2021
    Publication date: August 31, 2023
    Inventors: Xiangqian CUI, Ronghai CHEN, Ruiqin ZHANG, Weihao XIE, Yuan SUN, Tao CHEN, Ming YANG, Yanshi ZHAO
  • Patent number: 11261518
    Abstract: A method of producing a film of carbon nitride material, including the steps of providing a precursor of the carbon nitride material in a reacting vessel and a substrate substantially above the precursor of the carbon nitride material; heating the reacting vessel, the precursor of the carbon nitride material and the substrate at the first predetermined temperature; and quenching the reacting vessel to reach the second predetermined temperature; wherein the film of carbon nitride material is formed on a surface of the substrate during the quenching of the reacting vessel.
    Type: Grant
    Filed: September 12, 2018
    Date of Patent: March 1, 2022
    Assignee: City University of Hong Kong
    Inventors: Ruiqin Zhang, Wei Xiong, Miaoyan Huang, Haoran Tian
  • Publication number: 20200080188
    Abstract: A method of producing a film of carbon nitride material, including the steps of providing a precursor of the carbon nitride material in a reacting vessel and a substrate substantially above the precursor of the carbon nitride material; heating the reacting vessel, the precursor of the carbon nitride material and the substrate at the first predetermined temperature; and quenching the reacting vessel to reach the second predetermined temperature; wherein the film of carbon nitride material is formed on a surface of the substrate during the quenching of the reacting vessel.
    Type: Application
    Filed: September 12, 2018
    Publication date: March 12, 2020
    Inventors: Ruiqin Zhang, Wei Xiong, Miaoyan Huang, Haoran Tian
  • Patent number: 10090470
    Abstract: A method of forming a semiconductor film at pressure between 10?5 atm and 10 atm in the presence of a substrate includes (i) providing a precursor material in a reaction container; (ii) arranging the substrate on the reaction container such that a conductive surface of the substrate is facing towards the precursor material; and (iii) conducting a heat treatment to deposit a semiconductor layer on the conductive surface of the substrate. A semiconductor film is obtained from this method and a device comprising such semiconductor film is also provided.
    Type: Grant
    Filed: February 22, 2016
    Date of Patent: October 2, 2018
    Assignee: CITY UNIVERSITY OF HONG KONG
    Inventors: Ruiqin Zhang, Juncao Bian
  • Publication number: 20170244037
    Abstract: A method of forming a semiconductor film at pressure between 10?5 atm and 10 atm in the presence of a substrate includes (i) providing a precursor material in a reaction container; (ii) arranging the substrate on the reaction container such that a conductive surface of the substrate is facing towards the precursor material; and (iii) conducting a heat treatment to deposit a semiconductor layer on the conductive surface of the substrate. A semiconductor film is obtained from this method and a device comprising such semiconductor film is also provided.
    Type: Application
    Filed: February 22, 2016
    Publication date: August 24, 2017
    Inventors: Ruiqin ZHANG, Juncao Bian
  • Patent number: 9534178
    Abstract: A hydrogenation method and distillate two-phase hydrogenation reactor in which the size of an upper space of the reactor is greater than that of a lower catalyst bed part. The reactor comprises 2 to 4 catalyst beds. An inner component for gas replenishment and for stripping a liquid-phase stream containing impurities is arranged between at least one adjacent catalyst bed and comprises a separator plate and exhaust pipes. The separator plate is provided with multiple downcomer through holes. The separator plate is connected with a plurality of exhaust pipes. The exhaust pipes are vertically arranged above the separator plate. The top parts of the exhaust pipes are in contact with the lower part of the upper catalyst bed.
    Type: Grant
    Filed: August 1, 2013
    Date of Patent: January 3, 2017
    Assignee: PETROCHINA COMPANY LIMITED
    Inventors: Shoutao Ma, Ran Tian, Zhihua Zhang, Gang Wang, Famin Sun, Ruiqin Zhang, Chunmei Yu, Shengbo Sun, Xiufang Feng, Fengxuan Li, Jinling Zhu
  • Publication number: 20150361357
    Abstract: A hydrogenation method and distillate two-phase hydrogenation reactor in which the size of an upper space of the reactor is greater than that of a lower catalyst bed part. The reactor comprises 2 to 4 catalyst beds. An inner component for gas replenishment and for stripping a liquid-phase stream containing impurities is arranged between at least one adjacent catalyst bed and comprises a separator plate and exhaust pipes. The separator plate is provided with multiple downcomer through holes. The separator plate is connected with a plurality of exhaust pipes. The exhaust pipes are vertically arranged above the separator plate. The top parts of the exhaust pipes are in contact with the lower part of the upper catalyst bed.
    Type: Application
    Filed: August 1, 2013
    Publication date: December 17, 2015
    Inventors: Shoutao MA, Ran TIAN, Zhihua ZHANG, Gang WANG, Famin SUN, Ruiqin ZHANG, Chunmei YU, Shengbo SUN, Xiufang FENG, Fengxuan LI, Jinling ZHU
  • Patent number: 8454922
    Abstract: A method of storing hydrogen using carbon nanotubes having a diameter ranging from 0.6-0.8 nm. The hydrogen may be stored in a container which is made of another material. The carbon nanotubes may be provided inside the container for adsorbing the hydrogen.
    Type: Grant
    Filed: July 10, 2009
    Date of Patent: June 4, 2013
    Assignee: City University of Hong Kong
    Inventor: Ruiqin Zhang
  • Publication number: 20110008239
    Abstract: A method of storing hydrogen using carbon nanotubes having a diameter ranging from 0.6-0.8 nm. The hydrogen may be stored in a container which is made of another material. The carbon nanotubes may be provided inside the container for adsorbing the hydrogen.
    Type: Application
    Filed: July 10, 2009
    Publication date: January 13, 2011
    Applicant: CITY UNIVERSITY OF HONG KONG
    Inventor: Ruiqin ZHANG