Patents by Inventor Guoliang Yuan

Guoliang Yuan 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: 11397147
    Abstract: A test device and method for top-of-the-line corrosion (TLC) of a high-temperature high-pressure wet gas pipeline. The device mainly includes: a metal top cap, a metal reaction cylinder, a first thermometer, a second thermometer, a plastic transparent measuring cylinder, a condensed water collection tube, an atomic spectrometer, a third thermometer, a rubber seal cover, a condensate droplet, a threaded hole, a condensation chamber, a pipeline sample, a temperature measuring hole, and a 30-degree tilt angle. The device and method can effectively simulate TLC of a wet gas pipeline under a high-temperature high-pressure environment. The device and method can test the high-temperature high-pressure TLC of the wet gas pipeline under different temperature differences (between a surface temperature of the pipeline and a gas temperature) and various corrosion media.
    Type: Grant
    Filed: January 8, 2020
    Date of Patent: July 26, 2022
    Assignee: SOUTHWEST PETROLEUM UNIVERSITY
    Inventors: Kuanhai Deng, Yuanhua Lin, Yue Yuan, Guoliang Zhang, Zhiping Yin, Dezhi Zeng, Wanying Liu
  • Patent number: 10612211
    Abstract: A lock mechanism is provided in front of each of left and right consoles to fix the console in an optional position. Each of the lock mechanisms is provided with a lock release lever for selecting a lock state of fixing the console and a lock release state of releasing fixation of the console. Each of the lock release levers is provided to extend outward in a left-right direction from the lock mechanism. The lock state is defined by an inclined posture in which a tip end side of the lock release lever is in an oblique downward direction and the lock release state is defined by a horizontal posture in which the tip end sides of the lock release lever is rotated in an upward direction. A hand hold part is provided in front of each of the consoles and above each of the lock release levers to swing the console in the upper-lower direction in the lock release state.
    Type: Grant
    Filed: March 7, 2018
    Date of Patent: April 7, 2020
    Assignee: Hitachi Construction Machinery Co., Ltd.
    Inventors: Guoliang Yuan, Wataru Isaka
  • Publication number: 20180282971
    Abstract: A lock mechanism is provided in front of each of left and right consoles to fix the console in an optional position. Each of the lock mechanisms is provided with a lock release lever for selecting a lock state of fixing the console and a lock release state of releasing fixation of the console. Each of the lock release levers is provided to extend outward in a left-right direction from the lock mechanism. The lock state is defined by an inclined posture in which a tip end side of the lock release lever is in an oblique downward direction and the lock release state is defined by a horizontal posture in which the tip end sides of the lock release lever is rotated in an upward direction. A hand hold part is provided in front of each of the consoles and above each of the lock release levers to swing the console in the upper-lower direction in the lock release state.
    Type: Application
    Filed: March 7, 2018
    Publication date: October 4, 2018
    Inventors: Guoliang YUAN, Wataru ISAKA
  • Patent number: 9803140
    Abstract: The present disclosure discloses a liquid crystal compound and a liquid crystal composition. The liquid crystal compound has a general structural formula as represented by formula I. The liquid crystal composition provided by the present disclosure has a lower rotary viscosity ?1, can achieve a quick response, and further has an appropriate dielectric anisotropy ??, an appropriate optical anisotropy ?n, a high stability to heat and light, a high VHR numerical value especially in the case where the liquid crystal is under harsh conditions, and a stability to electric field and electromagnetic radiation. As a liquid crystal material for use in thin film transistor techniques (TFT-LCD), the material further has the properties of a wider nematic phase temperature range, an appropriate birefringence anisotropy, a very high electrical resistivity, a good anti-ultraviolet performance, a high charge holding rate, a low vapor pressure etc.
    Type: Grant
    Filed: May 20, 2016
    Date of Patent: October 31, 2017
    Assignee: Shijiazhuang Chengzhi Yonghua Display Materials Co., Ltd.
    Inventors: Guoliang Yuan, Lei Zhao, Kui Wang, Mingxia Wang, Ruimao Hua, Jinsong Meng
  • Publication number: 20170101581
    Abstract: The present disclosure discloses a liquid crystal compound and a liquid crystal composition. The liquid crystal compound has a general structural formula as represented by formula I. The liquid crystal composition provided by the present disclosure has a lower rotary viscosity ?1, can achieve a quick response, and further has an appropriate dielectric anisotropy ??, an appropriate optical anisotropy ?n, a high stability to heat and light, a high VHR numerical value especially in the case where the liquid crystal is under harsh conditions, and a stability to electric field and electromagnetic radiation. As a liquid crystal material for use in thin film transistor techniques (TFT-LCD), the material further has the properties of a wider nematic phase temperature range, an appropriate birefringence anisotropy, a very high electrical resistivity, a good anti-ultraviolet performance, a high charge holding rate, a low vapor pressure etc.
    Type: Application
    Filed: May 20, 2016
    Publication date: April 13, 2017
    Inventors: Guoliang Yuan, Lei Zhao, Kui Wang, Mingxia Wang, Ruimao Hua, Jinsong Meng
  • Patent number: 9428693
    Abstract: A liquid crystal composition having a negative dielectric anisotropy is disclosed. The liquid crystal composition includes compounds of Formulas I to IV. The composition has a low threshold voltage, a low rotary viscosity, a high resistivity, a high voltage holding ratio, and a good high temperature and UV stability. The LC medium has the advantage of obviously reduced response time after polymerization under UV irradiation, thus having important application value.
    Type: Grant
    Filed: August 23, 2013
    Date of Patent: August 30, 2016
    Assignee: Shijiazhuang Chengzhi Yonghua Display Materials Co., Ltd.
    Inventors: Gang Wen, Ruimao Hua, Guoliang Yuan, Jingyi Feng, Lianbo Mao, Xiaobin Rong, Lihong Gui, Ziqian Shi
  • Patent number: 9404038
    Abstract: The present invention is directed to compounds of the following General Formula I. The cyclopropyl-bearing liquid crystal compounds of Formula I of the present invention have a positive or negative dielectric anisotropy (??), an appropriate optical anisotropy (?n), an appropriate clearing point (CP), good low-temperature miscibility with other liquid crystals, a low rotary viscosity, and good UV stability and high-temperature thermal stability, and therefore have good use value. The compounds of the present invention can be used for preparing positive and negative liquid crystal compositions and can also be employed in passive and active matrix displays.
    Type: Grant
    Filed: May 22, 2015
    Date of Patent: August 2, 2016
    Assignee: Shijiazhuang Chengzhi Yonghua Display Materials Co., Ltd.
    Inventors: Guoliang Yuan, Jia Deng, Ming Li, Hu-bo Zhang, Yun-xia Qiao, Jin-song Meng, Rui-mao Hua
  • Publication number: 20160168461
    Abstract: The present invention is directed to compounds of the following General Formula I. The cyclopropyl-bearing liquid crystal compounds of Formula I of the present invention have a positive or negative dielectric anisotropy (??), an appropriate optical anisotropy (?n), an appropriate clearing point (CP), good low-temperature miscibility with other liquid crystals, a low rotary viscosity, and good UV stability and high-temperature thermal stability, and therefore have good use value. The compounds of the present invention can be used for preparing positive and negative liquid crystal compositions and can also be employed in passive and active matrix displays.
    Type: Application
    Filed: May 22, 2015
    Publication date: June 16, 2016
    Inventors: Guoliang Yuan, Jia Deng, Ming Li, Hu-bo Zhang, Yun-xia Qiao, Jin-song Meng, Rui-mao Hua
  • Patent number: 9303208
    Abstract: This invention relates to liquid crystal compounds of formula I containing cyclopentyl group and difluoromethyleneoxy linking group. Liquid crystal compounds of formula I have a large dielectric anisotropy, high clearing points, and a fast response speed, thereby having great significance to formulate a liquid crystal mixture.
    Type: Grant
    Filed: January 18, 2013
    Date of Patent: April 5, 2016
    Assignee: SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATERIALS CO., LTD.
    Inventors: Guoliang Yuan, Zhian Liang, Kui Wang, Ruimao Hua, Gang Wen, Miaofang Zhang, Jinsong Meng
  • Publication number: 20150218449
    Abstract: This invention relates to liquid crystal compounds of formula I containing cyclopentyl group and difluoromethyleneoxy linking group. Liquid crystal compounds of formula I have a large dielectric anisotropy, high clearing points, and a fast response speed, thereby having great significance to formulate a liquid crystal mixture.
    Type: Application
    Filed: January 18, 2013
    Publication date: August 6, 2015
    Applicant: SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATRIALS Co., LTD.
    Inventors: Guoliang Yuan, Zhian Liang, Kui Wang, Ruimao Hua, Gang Wen, Miaofang Zhang, Jinsong Meng
  • Publication number: 20150184075
    Abstract: A liquid crystal composition having a negative dielectric anisotropy is disclosed. The liquid crystal composition includes compounds of Formulas I to IV. The composition has a low threshold voltage, a low rotary viscosity, a high resistivity, a high voltage holding ratio, and a good high temperature and UV stability. The LC medium has the advantage of obviously reduced response time after polymerization under UV irradiation, thus having important application value.
    Type: Application
    Filed: August 23, 2013
    Publication date: July 2, 2015
    Inventors: Gang Wen, Ruimao Hua, Guoliang Yuan, Jingyi Feng, Lianbo Mao, Xiaobin Rong, Lihong Gui, Ziqian Shi