Patents by Inventor Xiaoqing Zhang

Xiaoqing 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: 20210094924
    Abstract: The present invention provides a novel indoleamine 2,3-dioxygenase inhibitor, a preparation method thereof, and a pharmaceutical composition, in which the definitions of n, Y, Z, R1, R2, R3, and R4 are as stated in the specification. Also provided is a use of the aforementioned compound and pharmaceutically acceptable salts and isomers thereof in the preparation of a drug for indoleamine 2,3-dioxygenase (IDO) related disease, specifically a use in the treatment of major diseases such as cancer, Alzheimer's, depression, cataract, etc. The compound of the invention has improved activity, potential medicinal value, and wide market prospects.
    Type: Application
    Filed: December 13, 2018
    Publication date: April 1, 2021
    Inventors: Xiaoqing ZHANG, Zhichun SONG, Jinyuan BAO
  • Publication number: 20200354347
    Abstract: Disclosed are a compound with anthrone and N-containing heterocycle and an application thereof in an OLED. The compound contains anthrone and N-containing heterocycle structure which are both strong electron-withdrawing groups. The compound has a deep HOMO energy level and high electron mobility and is suitable for use as hole blocking materials or electron transport materials; the compound can also be used as a host material for electron-type light-emitting layers; in addition, the compound of the present invention has strong group rigidity, not easily causes crystallization and aggregation between molecules, and has good film-forming property. After the compound of the present invention is applied to an OLED device as an organic electroluminescent functional layer material, the current efficiency, power efficiency and external quantum efficiency of the device are greatly improved; moreover, the compound can improve the service life of the device.
    Type: Application
    Filed: September 25, 2018
    Publication date: November 12, 2020
    Applicant: VALIANT CO., LTD.
    Inventors: Haifeng CHEN, Chong LI, Zhaochao ZHANG, Xiaoqing ZHANG, Dandan TANG
  • Publication number: 20200333508
    Abstract: A dual line photodiode array device encapsulates, on a photoelectric sensing element, two columns of photodiode array units having the same specification and performance; the dual line photodiode array device includes a first photodiode array unit and a second photodiode array unit that are arranged parallel to each other and is used for achieving the measurement of particle velocity. The particle velocity may be more accurately measured by means of integrating the two columns of photodiode array units on a single photosensitive element. The dual line photodiode array device may also be applied to the measurement of raindrops and sea spray droplets.
    Type: Application
    Filed: February 11, 2018
    Publication date: October 22, 2020
    Applicant: INSTITUTE OF ATMOSPHERIC PHYSICS, CHINESE ACADEMY OF SCIENCES
    Inventors: Hengchi LEI, Jiatian CHEN, Minsong HUANG, Xiaoqing ZHANG, Shouyin ZHENG
  • Patent number: 10298338
    Abstract: A method for evaluating the quality of a radio frequency signal for a satellite navigation system, the method comprising: sampling the payload radio frequency signal of a satellite to obtain an intermediate frequency signal, and filtering the signal; downconverting the filtered intermediate signal to obtain the corresponding actual baseband signal; generating the signal components of the ideal baseband signal branches on the basis of the obtained actual baseband signal and the signal system thereof; reproducing the ideal baseband signal, which is used to evaluating the actual baseband signal; establishing a correlation function between the actual baseband signal to be evaluated and the ideal baseband signal, and obtaining through corresponding calculations a series of quality evaluation indexes such as spurious transmission in the band and related loss, thereby enabling the evaluation of the quality of the radio frequency signal.
    Type: Grant
    Filed: October 16, 2014
    Date of Patent: May 21, 2019
    Assignee: HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Zuping Tang, Jiaolong Wei, Xiaoqing Zhang, Changjian Liu
  • Patent number: 10148080
    Abstract: A single-phase-to-earth fault processing device for a neutral non-effectively grounded distribution network includes a split-phase arc quenching device connected between earth and a three-phase bus of the distribution network, and a controller with an input end connected with a single-phase-to-earth phase selection device of the distribution network. The split-phase arc quenching device includes a multiphase switching device which operates independently for each phase, and a fuse connected in series with the multiphase switching device. The controller is for controlling opening and closing of three single-phase switches in the multiphase switching device. A single-phase-to-earth fault processing method firstly controls the split-phase arc quenching device to preprocess the fault. If the fault still exists, through a ground resistor a zero-sequence current is generated on a fault line.
    Type: Grant
    Filed: September 10, 2014
    Date of Patent: December 4, 2018
    Assignees: STATE GRID CORPORATION OF CHINA, STATE GRID SHAANXI ELECTRIC POWER RESEARCH INSTITUTE
    Inventors: Jian Liu, Pinde Li, Xiaoqing Zhang, Zhihua Zhang, Shuren Zhao
  • Patent number: 9884290
    Abstract: A flue-gas purification system includes a flue-gas cycling system, a reactor, and an absorbent adding system having at least a catalytic absorbent, wherein the catalytic absorbent is being gasified for reacting with the flue-gas in the reactor in a homogenous gas-gas phase reacting manner. Therefore, the purification system has fast reaction rate between the pollutants of the flue-gas and the catalytic absorbent, which is preferably ammonia, to efficiently remove pollutants, so as to effectively purify the flue-gas.
    Type: Grant
    Filed: March 7, 2016
    Date of Patent: February 6, 2018
    Inventors: Baoquan Zhang, Xiaoqing Zhang
  • Publication number: 20170359132
    Abstract: A method for evaluating the quality of a radio frequency signal for a satellite navigation system, the method comprising: sampling the payload radio frequency signal of a satellite to obtain an intermediate frequency signal, and filtering the signal; downconverting the filtered intermediate signal to obtain the corresponding actual baseband signal; generating the signal components of the ideal baseband signal branches on the basis of the obtained actual baseband signal and the signal system thereof; reproducing the ideal baseband signal, which is used to evaluating the actual baseband signal; establishing a correlation function between the actual baseband signal to be evaluated and the ideal baseband signal, and obtaining through corresponding calculations a series of quality evaluation indexes such as spurious transmission in the band and related loss, thereby enabling the evaluation of the quality of the radio frequency signal.
    Type: Application
    Filed: October 16, 2014
    Publication date: December 14, 2017
    Applicant: Huazhong University of Science and Technology
    Inventors: Zuping TANG, Jiaolong WEI, Xiaoqing ZHANG, Changjian LIU
  • Publication number: 20160379106
    Abstract: The present disclosure provides a human-computer intelligence chatting method and device. The method includes: receiving a multimodal input signal, the multimodal input signal comprising at least one of a speech signal, an image signal, a sensor signal and an event driving signal; processing the multimodal input signal to obtain text data, and obtaining an intention of a user according to the text data; obtaining an answer corresponding to the intention of the user, and converting the answer to a multimodal output signal; and outputting the multimodal output signal.
    Type: Application
    Filed: December 22, 2015
    Publication date: December 29, 2016
    Inventors: Chao Qi, Quan Wen, Hongliang Chen, Xiangyang Zhou, Xiaoqing Zhang, Zhou Xin, Shiqi Zhao
  • Publication number: 20160278962
    Abstract: A wearable active upper body support system having active shoulder support device, battery, and waist belt. The active shoulder support device is comprised of shoulder support actuator(s) and controller. The system provides counter gravity relief to spine by position the shoulder support actuators along sides of the ribcage under the left and right armpits, with actuator mounting bases anchored in mounting pockets on the waist belt, and the shoulder support pads exerting microcontroller controlled active upper bound force from under the shoulders. The system can be concealed under loose clothing and is wearable with no constraint on daily activities such as walking around, slow running, standing, sitting, or lying down.
    Type: Application
    Filed: August 7, 2015
    Publication date: September 29, 2016
    Inventor: Frank Xiaoqing Zhang
  • Publication number: 20160233661
    Abstract: A single-phase-to-earth fault processing device for a neutral non-effectively grounded distribution network includes a split-phase arc quenching device connected between earth and a three-phase bus of the distribution network, and a controller with an input end connected with a single-phase-to-earth phase selection device of the distribution network. The split-phase arc quenching device includes a multiphase switching device which operates independently for each phase, and a fuse connected in series with the multiphase switching device. The controller is for controlling opening and closing of three single-phase switches, in the multiphase switching device. A single-phase-to-earth fault processing method firstly controls the split-phase arc quenching device to preprocess the fault. If the fault still exists, through a ground resistor a zero-sequence current is generated on a fault line.
    Type: Application
    Filed: September 10, 2014
    Publication date: August 11, 2016
    Applicant: STATE GRID CORPORATION OF CHINA
    Inventors: Jian Liu, Pinde Li, Xiaoqing Zhang, Zhihua Zhang, Shuren Zhao
  • Publication number: 20160184774
    Abstract: A flue-gas purification system includes a flue-gas cycling system, a reactor, and an absorbent adding system having at least a catalytic absorbent, wherein the catalytic absorbent is being gasified for reacting with the flue-gas in the reactor in a homogenous gas-gas phase reacting manner. Therefore, the purification system has fast reaction rate between the pollutants of the flue-gas and the catalytic absorbent, which is preferably ammonia, to efficiently remove pollutants, so as to effectively purify the flue-gas.
    Type: Application
    Filed: March 7, 2016
    Publication date: June 30, 2016
    Inventors: Baoquan Zhang, Xiaoqing Zhang
  • Patent number: 9308494
    Abstract: A flue-gas purification system includes a flue-gas cycling system, a reacting means, and an absorbent adding system having at least a catalytic absorbent, wherein the catalytic absorbent is being gasified for reacting with the flue-gas in the reacting means in a homogenous gas-gas phase reacting manner. Therefore, the purification system has fast reaction rate between the pollutants of the flue-gas and the catalytic absorbent, which is preferably ammonia, to efficiently remove pollutants, so as to effectively purify the flue-gas.
    Type: Grant
    Filed: September 16, 2014
    Date of Patent: April 12, 2016
    Inventors: Baoquan Zhang, Xiaoqing Zhang
  • Publication number: 20150104365
    Abstract: A flue-gas purification system includes a flue-gas cycling system, a reacting means, and an absorbent adding system having at least a catalytic absorbent, wherein the catalytic absorbent is being gasified for reacting with the flue-gas in the reacting means in a homogenous gas-gas phase reacting manner. Therefore, the purification system has fast reaction rate between the pollutants of the flue-gas and the catalytic absorbent, which is preferably ammonia, to efficiently remove pollutants, so as to effectively purify the flue-gas.
    Type: Application
    Filed: September 16, 2014
    Publication date: April 16, 2015
    Inventors: Baoquan Zhang, Xiaoqing Zhang
  • Patent number: 8895301
    Abstract: A transcription factor both necessary and sufficient for human neuroectoderm specification, Pax6, as well as applications thereof, is disclosed.
    Type: Grant
    Filed: January 27, 2012
    Date of Patent: November 25, 2014
    Assignee: Wisconsin Alumni Research Foundation
    Inventors: Su-Chun Zhang, Xiaoqing Zhang
  • Publication number: 20140318703
    Abstract: A continuous production process for a polytetrafluoroethylene functional film for electro-mechanical energy conversion is disclosed. The process includes a step of thermal bonding a composite film having a micro-porous structure and electrically charging the composite film. The composite film having a micro-porous structure includes one layer of porous polytetrafluoroethylene film sandwiched between two adjacent layers of polytetrafluoroethylene film thermally bonded by two heated rollers. The process also has a step of electrically charging the composite film to obtain a polytetrafluoroethylene piezoelectric electret film. The electrically charging the composite film can be corona-polarizing the composite film by introducing the composite film between an electrode roller and a corona electrode, or introducing the composite film into an electroplating region and attaching electrodes to the upper and lower surfaces thereof, followed by introducing the film to a charging region by a contacting process.
    Type: Application
    Filed: May 31, 2012
    Publication date: October 30, 2014
    Applicant: SHANGHAI DAGONG NEW MATERIALS CO., LTD.
    Inventors: Xiangshan Gong, Xiaoqing Zhang, Miya Tsugunari
  • Patent number: 8865097
    Abstract: A flue-gas purification system includes a flue-gas cycling system, a reactor, and an absorbent adding system having at least a catalytic absorbent, wherein the catalytic absorbent is being gasified for reacting with the flue-gas in the reactor in a homogenous gas-gas phase reacting manner. Therefore, the purification system has fast reaction rate between the pollutants of the flue-gas and the catalytic absorbent, which is preferably ammonia, to efficiently remove pollutants, so as to effectively purify the flue-gas.
    Type: Grant
    Filed: August 5, 2013
    Date of Patent: October 21, 2014
    Inventors: Baoquan Zhang, Xiaoqing Zhang
  • Publication number: 20140050643
    Abstract: A flue-gas purification system includes a flue-gas cycling system, a reactor, and an absorbent adding system having at least a catalytic absorbent, wherein the catalytic absorbent is being gasified for reacting with the flue-gas in the reactor in a homogenous gas-gas phase reacting manner. Therefore, the purification system has fast reaction rate between the pollutants of the flue-gas and the catalytic absorbent, which is preferably ammonia, to efficiently remove pollutants, so as to effectively purify the flue-gas.
    Type: Application
    Filed: August 5, 2013
    Publication date: February 20, 2014
    Inventors: Baoquan Zhang, Xiaoqing Zhang
  • Patent number: 8529852
    Abstract: A flue-gas purification system includes a flue-gas cycling system, a reactor, and an absorbent adding system having at least a catalytic absorbent, wherein the catalytic absorbent is being gasified for reacting with the flue-gas in the reactor in a homogenous gas-gas phase reacting manner. Therefore, the purification system has fast reaction rate between the pollutants of the flue-gas and the catalytic absorbent, which is preferably ammonia, to efficiently remove pollutants, so as to effectively purify the flue-gas.
    Type: Grant
    Filed: March 26, 2012
    Date of Patent: September 10, 2013
    Inventors: Baoquan Zhang, Xiaoqing Zhang
  • Publication number: 20120189519
    Abstract: A flue-gas purification system includes a flue-gas cycling system, a reactor, and an absorbent adding system having at least a catalytic absorbent, wherein the catalytic absorbent is being gasified for reacting with the flue-gas in the reactor in a homogenous gas-gas phase reacting manner. Therefore, the purification system has fast reaction rate between the pollutants of the flue-gas and the catalytic absorbent, which is preferably ammonia, to efficiently remove pollutants, so as to effectively purify the flue-gas.
    Type: Application
    Filed: March 26, 2012
    Publication date: July 26, 2012
    Inventors: Baoquan Zhang, Xiaoqing Zhang
  • Publication number: 20120157510
    Abstract: A transcription factor both necessary and sufficient for human neuroectoderm specification, Pax6, as well as applications thereof, is disclosed.
    Type: Application
    Filed: January 27, 2012
    Publication date: June 21, 2012
    Inventors: Su-Chun Zhang, Xiaoqing Zhang