Patents by Inventor Juanjuan Liu

Juanjuan 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: 20230250464
    Abstract: There is described a biosensor apparatus. The biosensor apparatus generally has: a photodiode array having a first photon receiving face, a transparent substrate covering the first photon receiving face of the photodiode array, the transparent substrate having a second photon receiving face opposite the photodiode array, an electrically conductive coating covering the second photon receiving face of the transparent substrate, the electrically conductive coating being transparent and having two electrical contacts spaced apart from one another, and an analyte receiving area extending between the two electrical contacts of the electrically conductive coating.
    Type: Application
    Filed: February 6, 2023
    Publication date: August 10, 2023
    Inventors: Juanjuan LIU, Sebastian Wachsmann Hogiu, Reza Abbasi, Meruyert Imanbekova
  • Patent number: 9089849
    Abstract: A single-region-board type high temperature electrostatic dust collector comprising anode boards (1), a cathode board (2), emitting electrodes (3) and a high voltage power supply is provided. Two parallel corrosion resistant plates are grounded to form the anode boards (1). One corrosion resistant plate with the same shape and size as the anode boards (1) connects to the cathode of the high voltage power supply, so as to form the cathode board (2), which are suspended between the two anode boards (1) and parallel with the anode boards (1). The disk-shaped emitting electrodes (3) are uniformly embedded at two sides of the cathode board (2).
    Type: Grant
    Filed: October 29, 2010
    Date of Patent: July 28, 2015
    Assignee: NANJING NORMAL UNIVERSITY
    Inventors: Zhongzhu Gu, Jinjin Xu, Liying Dong, Juanjuan Liu
  • Patent number: 9062261
    Abstract: The invention relates to a catalytic cracking process for reducing sulfur content in gasoline and the device thereof, which includes a fluidized bed reactor in addition of a heavy oil catalytic cracking riser, characterized in enhancing contact time of oil-gas with the catalyst, further desulfurizing and reducing olefin content and increasing octane number in gasoline; regenerating all recycling catalysts, quality of products being stable and easily operated, reducing sulfur of gasoline to a maximum limit; adding a cooling device so as to avoid coking when the catalyst contacts with oil-gas in high temperature and decrease of yield of light oil resulted by excessively high reaction temperature of gasoline upgrading, improving products distribution, being flexible to change catalyst-oil ratio and reaction temperature of catalytic cracking reaction.
    Type: Grant
    Filed: June 10, 2010
    Date of Patent: June 23, 2015
    Assignee: PETROCHINA COMPANY LIMITED
    Inventors: Xionghou Gao, Shuhong Sun, Lin Wang, Xinmei Pang, Zhifeng Wang, Yongfu Gao, Zhaoyong Liu, Conghua Liu, Jinsen Gao, Gang Wang, Yanhui Zhang, Tao Liu, Juanjuan Liu
  • Patent number: 8836241
    Abstract: A driving controller for driving a load is disclosed. The driving circuit includes a driving power supply and the driving controller. The driving power supply provides a first power source to the load. The controller is coupled to a second power source to receive an electric power for operating. The controller controls the amount of the electric power to the load when operating in a first mode and stops the driving power supply from providing the electric power to the load when operating in a second mode. The controller operates exclusively in the first mode before the driving power supply provides the first power source to the load.
    Type: Grant
    Filed: January 9, 2013
    Date of Patent: September 16, 2014
    Assignee: Green Solution Technology Co., Ltd.
    Inventors: Shian-Sung Shiu, JuanJuan Liu
  • Patent number: 8755810
    Abstract: The present invention discloses a method and apparatus for rank self-adaptation. The method comprises: a base station receiving ranks reported by a user equipment via a rank receiving window, determining a rank at the current moment based on a distribution state of each rank in the rank receiving window at the current moment, and determining the number of independent channels used for sending downstream data to the user equipment based on the rank at the current moment. The present invention can reasonably forecast change of ranks of MIMO channels so as to better use MIMO channel resources to perform data transmission and improve the throughput rate of the MIMO channels.
    Type: Grant
    Filed: March 5, 2010
    Date of Patent: June 17, 2014
    Assignee: ZTE Corporation
    Inventors: Yuanchun Tan, Focai Peng, Liping Liu, Xianxi Li, Juanjuan Liu, Liang Li
  • Publication number: 20130220128
    Abstract: A single-region-board type high temperature electrostatic dust collector comprising anode boards (1), a cathode board (2), emitting electrodes (3) and a high voltage power supply is provided. Two parallel corrosion resistant plates are grounded to form the anode boards (1). One corrosion resistant plate with the same shape and size as the anode boards (1) connects to the cathode of the high voltage power supply, so as to form the cathode board (2), which are suspended between the two anode boards (1) and parallel with the anode boards (1). The disk-shaped emitting electrodes (3) are uniformly embedded at two sides of the cathode board (2).
    Type: Application
    Filed: October 29, 2010
    Publication date: August 29, 2013
    Inventors: Zhongzhu Gu, Jinjin Xu, Liying Dong, Juanjuan Liu
  • Patent number: 8461769
    Abstract: An LED driving circuit is used for dimming by switching between an operating current and a maintaining current or by voltage clamping of a source/drain of MOSFET that is coupled to the LED module. When the LED module is dimmed off, the voltage across the LED module can be kept at a value around a lighting threshold voltage of the LED module that is a minimum voltage for lighting the LED module. Therefore, a voltage difference between the drain and the source of MOSFET coupled to the LED module is smaller than that in the conventional arts. Hence, a withstand voltage of MOSFET can be reduced, and cost of the LED driving circuit as well as the power consumption of MOSFET can be lessened, thereby improving integral efficiency of the circuit.
    Type: Grant
    Filed: June 30, 2009
    Date of Patent: June 11, 2013
    Assignee: Green Solution Technology Co., Ltd.
    Inventors: Shian-Sung Shiu, Chung-Che Yu, JuanJuan Liu
  • Patent number: 8400078
    Abstract: A driving controller for driving a load is disclosed. The driving circuit includes a driving power supply and the driving controller. The driving power supply provides a first power source to the load. The controller is coupled to a second power source to receive an electric power for operating. The controller controls the amount of the electric power to the load when operating in a first mode and stops the driving power supply from providing the electric power to the load when operating in a second mode. The controller operates exclusively in the first mode before the driving power supply provides the first power source to the load.
    Type: Grant
    Filed: July 15, 2010
    Date of Patent: March 19, 2013
    Assignee: Green Solution Technology Co., Ltd.
    Inventors: Shian-Sung Shiu, Juanjuan Liu
  • Publication number: 20120196612
    Abstract: The present invention discloses a method and apparatus for rank self-adaptation. The method comprises: a base station receiving ranks reported by a user equipment via a rank receiving window, determining a rank at the current moment based on a distribution state of each rank in the rank receiving window at the current moment, and determining the number of independent channels used for sending downstream data to the user equipment based on the rank at the current moment. The present invention can reasonably forecast change of ranks of MIMO channels so as to better use MIMO channel resources to perform data transmission and improve the throughput rate of the MIMO channels.
    Type: Application
    Filed: March 5, 2010
    Publication date: August 2, 2012
    Applicant: ZTE Corporation
    Inventors: Yuanchun Tan, Focai Peng, Liping Liu, Xianxi Li, Juanjuan Liu, Liang Li
  • Patent number: 8058818
    Abstract: An LED driving circuit and a MOSFET switch module thereof is disclosed, and the MOSFET switch module which is used to control a current of the LED driving circuit. The present invention employs a voltage clamping device to clamp the voltage level of the drain of transistor in the MOSFET switch module when being turned off. Via this way, the requirement for the withstand voltage of the transistor is lowered, and so the cost and power consumption thereof is reduced.
    Type: Grant
    Filed: March 16, 2009
    Date of Patent: November 15, 2011
    Assignee: Green Solution Technology Co., Ltd.
    Inventors: Shian-Sung Shiu, Chung-Che Yu, Juanjuan Liu
  • Publication number: 20110043139
    Abstract: A driving controller for driving a load is disclosed. The driving circuit includes a driving power supply and the driving controller. The driving power supply provides a first power source to the load. The controller is coupled to a second power source to receive an electric power for operating. The controller controls the amount of the electric power to the load when operating in a first mode and stops the driving power supply from providing the electric power to the load when operating in a second mode. The controller operates exclusively in the first mode before the driving power supply provides the first power source to the load.
    Type: Application
    Filed: July 15, 2010
    Publication date: February 24, 2011
    Applicant: GREEN SOLUTION TECHNOLOGY CO., LTD.
    Inventors: SHIAN-SUNG SHIU, JUANJUAN LIU
  • Publication number: 20100314289
    Abstract: The invention relates to a catalytic cracking process for reducing sulfur content in gasoline and the device thereof, which includes a fluidized bed reactor in addition of a heavy oil catalytic cracking riser, characterized in enhancing contact time of oil-gas with the catalyst, further desulfurizing and reducing olefin content and increasing octane number in gasoline; regenerating all recycling catalysts, quality of products being stable and easily operated, reducing sulfur of gasoline to a maximum limit; adding a cooling device so as to avoid coking when the catalyst contacts with oil-gas in high temperature and decrease of yield of light oil resulted by excessively high reaction temperature of gasoline upgrading, improving products distribution, being flexible to change catalyst-oil ratio and reaction temperature of catalytic cracking reaction.
    Type: Application
    Filed: June 10, 2010
    Publication date: December 16, 2010
    Applicant: PETROCHINA COMPANY LIMITED
    Inventors: Xionghou GAO, Shuhong SUN, Lin WANG, Xinmei PANG, Zhifeng WANG, Yongfu GAO, Zhaoyong LIU, Conghua LIU, Jinsen GAO, Gang WANG, Yanhui ZHANG, Tao LIU, Juanjuan LIU
  • Publication number: 20090322252
    Abstract: An LED driving circuit and a MOSFET switch module thereof is disclosed, and the MOSFET switch module which is used to control a current of the LED driving circuit. The present invention employs a voltage clamping device to clamp the voltage level of the drain of transistor in the MOSFET switch module when being turned off. Via this way, the requirement for the withstand voltage of the transistor is lowered, and so the cost and power consumption thereof is reduced.
    Type: Application
    Filed: March 16, 2009
    Publication date: December 31, 2009
    Inventors: Shian-Sung Shiu, Chung-Che Yu, Juanjuan Liu
  • Publication number: 20090322235
    Abstract: An LED driving circuit is used for dimming by switching between an operating current and a maintaining current or by voltage clamping of a source/drain of MOSFET that is coupled to the LED module. When the LED module is dimmed off, the voltage across the LED module can be kept at a value around a lighting threshold voltage of the LED module that is a minimum voltage for lighting the LED module. Therefore, a voltage difference between the drain and the source of MOSFET coupled to the LED module is smaller than that in the conventional arts. Hence, a withstand voltage of MOSFET can be reduced, and cost of the LED driving circuit as well as the power consumption of MOSFET can be lessened, thereby improving integral efficiency of the circuit.
    Type: Application
    Filed: June 30, 2009
    Publication date: December 31, 2009
    Inventors: Shian-Sung Shiu, Chung-Che Yu, JuanJuan Liu
  • Patent number: D1003562
    Type: Grant
    Filed: July 18, 2023
    Date of Patent: October 31, 2023
    Inventor: Juanjuan Liu
  • Patent number: D1006430
    Type: Grant
    Filed: September 8, 2023
    Date of Patent: December 5, 2023
    Assignee: GUANGZHOU YUEYUEGUI INTELLIGENT TECHNOLOGY CO., LTD
    Inventor: Juanjuan Liu
  • Patent number: D1050764
    Type: Grant
    Filed: July 29, 2022
    Date of Patent: November 12, 2024
    Inventor: Juanjuan Liu
  • Patent number: D1052298
    Type: Grant
    Filed: July 29, 2022
    Date of Patent: November 26, 2024
    Inventor: Juanjuan Liu