Patents by Inventor Weidong Cao

Weidong Cao 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: 11912712
    Abstract: The present invention relates to an organic compound, an organic electroluminescent material, and an organic electroluminescent element. The structural formula of the compound is shown in formula (I). When the organic compound of the present invention is used for preparing an organic electroluminescent element, the electron mobility, thermal stability, and luminescent characteristics are excellent; and the organic compound can be applied to an organic layer of the organic electroluminescent element. The organic compound of the present invention has a relatively good film-forming property; and when same is applied to an electron transport layer and an electron transport auxiliary layer, an organic electroluminescent element, which has a lower driving voltage, a higher light emission efficiency, and a longer service life than existing electron transport materials, can be manufactured, and thus, a full-color display panel with having improved performance and a prolonged service life can be manufactured.
    Type: Grant
    Filed: April 27, 2023
    Date of Patent: February 27, 2024
    Assignee: BEIJING BAYI SPACE LIQUID CRYSTAL TECHNOLOGY CO. LTD.
    Inventors: Jianhua Cao, Weidong Jiang, Youwen Cheng, Chenghui Li, Jia Zhao, Qingyi Wang, Meiyan Wang, Jianbo Sun
  • Publication number: 20230267250
    Abstract: A computer-implemented method is provided for generating device parameters of circuits using a pretrained reinforcement learning (RL) agent composed of a graph neural network (GNN) and a fully connected neural network (FCNN). The method is performed by steps including acquiring inputs with respect to a set of desired specifications or one desired specification of a circuit, device parameters, a fixed topology of the circuit and providing the inputs to the RL agent. The desired circuit description includes a graph modeling the topology of the circuit and device parameters of the circuit, and the desired specifications include gain, bandwidth, phase margin, power consumption, output power and power efficiency.
    Type: Application
    Filed: March 8, 2022
    Publication date: August 24, 2023
    Applicant: Mitsubishi Electric Research Laboratories, Inc.
    Inventors: Rui Ma, Mouhacine Benosman, Weidong Cao
  • Patent number: 11637355
    Abstract: An integrated circuit is disclosed. The integrated circuit includes a first resonator, a second resonator, and a coupling element. The first resonator has a first terminal and a second terminal, where the first resonator comprises a gain resistor, a gain capacitor, and a gain inductor in parallel and electrically coupling the first terminal with the second terminal. The second resonator has a third terminal and a fourth terminal, where the second resonator includes a loss resistor, a loss capacitor, and a loss inductor in parallel and electrically coupling the third terminal with the fourth terminal. The coupling element selectively couples the first terminal of the first resonator with the third terminal of the second resonator.
    Type: Grant
    Filed: August 26, 2021
    Date of Patent: April 25, 2023
    Assignee: Washington University
    Inventors: Xuan Zhang, Lan Yang, Weidong Cao, Weijian Chen
  • Patent number: 11480180
    Abstract: A self-priming starting device for a centrifugal pump is mounted on a water inlet pipe of the centrifugal pump and includes an outer housing, an inner housing, a primary spacer, a secondary spacer, an opening and closing disc and a tertiary spacer which are sequentially provided in the outer housing from top to bottom, and an elastic steel plate provided in the water inlet pipe. A drum is provided in the inner housing, and air inlet pipes and air discharging pipes are provided on the inner housing. The drum is provided with drum chambers and a three-blade support is provided in the drum. The opening and closing disc is provided with a vertical rod. A gas-liquid cutter is provided between the primary spacer and the secondary spacer. The primary spacer, the secondary spacer, the opening and closing disc and the tertiary spacer are provided with through-holes.
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: October 25, 2022
    Assignee: JIANGSU UNIVERSITY
    Inventors: Wei Li, Hao Chang, Weidong Shi, Ling Zhou, Weidong Cao, Yong Zhu, Tao Lang, Yangyang Wei
  • Publication number: 20220213465
    Abstract: The present invention relates to a method for concentrating a biological sample containing nucleic acids by using magnetic chitosan microparticles and subsequently performing a PCR reaction on the nucleic acids captured on the microparticles. The chitosan microparticles added to the biological sample at a PCR compatible pH are mechanically agitated to provide for cell lysis and simultaneous DNA capture, and then serve as a solid support for the nucleic acid template during the PCR reaction. As the chitosan microparticles are utilized for lysis and the nucleic acids do not need to be removed from the microparticles before PCR, the ease of the sample preparation procedure is dramatically improved.
    Type: Application
    Filed: November 15, 2021
    Publication date: July 7, 2022
    Applicants: University of Maryland, College Park, Canon U.S.A., Inc.
    Inventors: Ian M. White, Srinivasa Raghavan, Kunal R. Pandit, Imaly Nanayakkara, Weidong Cao
  • Publication number: 20220120280
    Abstract: A self-priming starting device for a centrifugal pump is mounted on a water inlet pipe of the centrifugal pump and includes an outer housing, an inner housing, a primary spacer, a secondary spacer, an opening and closing disc and a tertiary spacer which are sequentially provided in the outer housing from top to bottom, and an elastic steel plate provided in the water inlet pipe. A drum is provided in the inner housing, and air inlet pipes and air discharging pipes are provided on the inner housing. The drum is provided with drum chambers and a three-blade support is provided in the drum. The opening and closing disc is provided with a vertical rod. A gas-liquid cutter is provided between the primary spacer and the secondary spacer. The primary spacer, the secondary spacer, the opening and closing disc and the tertiary spacer are provided with through-holes.
    Type: Application
    Filed: December 20, 2019
    Publication date: April 21, 2022
    Applicant: JIANGSU UNIVERSITY
    Inventors: Wei LI, Hao CHANG, Weidong SHI, Ling ZHOU, Weidong CAO, Yong ZHU, Tao LANG, Yangyang WEI
  • Patent number: 11174478
    Abstract: The present invention relates to a method for concentrating a biological sample containing nucleic acids by using magnetic chitosan microparticles and subsequently performing a PCR reaction on the nucleic acids captured on the microparticles. The chitosan microparticles added to the biological sample at a PCR compatible pH are mechanically agitated to provide for cell lysis and simultaneous DNA capture, and then serve as a solid support for the nucleic acid template during the PCR reaction. As the chitosan microparticles are utilized for lysis and the nucleic acids do not need to be removed from the microparticles before PCR, the ease of the sample preparation procedure is dramatically improved.
    Type: Grant
    Filed: May 20, 2016
    Date of Patent: November 16, 2021
    Assignees: University of Maryland, College Park, Canon U.S.A., Inc.
    Inventors: Ian M. White, Srinivasa Raghavan, Kunal R. Pandit, Imaly Nanayakkara, Weidong Cao
  • Publication number: 20210299667
    Abstract: A photonic thermocycling device is configured to thermocycle a biological sample. The thermocycling device comprises a light source configured to emit an illumination beam, a reaction block holding a reaction chamber, and a light-absorbing film is coupled to the reaction block and configured to absorb and convert the illumination beam into thermal energy to heat the reaction chamber. A controller generates instructions for operation of the thermocycling device. The thermocycling device may further comprise a temperature sensor to measure the temperature of the reaction chamber for calibration of the instructions. A convection cooling element may also be implemented to provide rapid cooling of the reaction chamber. A lens assembly may be implemented for directing and conditioning light generated by the light source towards the light-absorbing film. A second partial light-absorbing film may be included and coupled on an opposite side of the first light-absorbing film, to improve heating uniformity.
    Type: Application
    Filed: March 24, 2021
    Publication date: September 30, 2021
    Inventors: Weidong Cao, Trevor Sierra Foss, Brandy Michelle Baird, Jeffrey William Reed, Mark Frederick Senko, Andrea W. Chow
  • Patent number: 10684112
    Abstract: The structure has a subgrade or slope to be monitored and strip-shaped smart geosynthetic material compound devices. The strip-shaped smart geosynthetic material compound devices are buried to run through a subgrade or slope predicted slip crack surface. Gaps between the strip-shaped smart geosynthetic material compound devices and borehole inner walls are filled so that the force environment of the strip-shaped smart geosynthetic material compound devices is close to the subgrade or slope internal environment. Each strip-shaped smart geosynthetic material compound device has a strip-shaped geogrid, lead, and heat shrinkable tube. The lead is arranged in a length direction of the geogrid, and the lead and geogrid are fixedly connected at an interval of a set distance, with each fixed point forming a measuring point. The geogrid is wrapped in the heat shrinkable tube, and a free end of the lead is drawn out of the heat shrinkable tube.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: June 16, 2020
    Assignee: SHANDONG UNIVERSITY
    Inventors: Xinzhuang Cui, Weidong Cao, Lei Zhang, Junwei Su, Yilin Wang, Jun Li, Sheqiang Cui, Zhongxiao Wang
  • Patent number: 10363558
    Abstract: The present invention relates to systems and methods for the real time processing of nucleic acid during polymerase chain reaction (PCR) and thermal melt applications. According to an aspect of the invention, a system for the rapid serial processing of multiple nucleic acid assays is provided. In one embodiment, the system includes, but is not limited to: a microfluidic cartridge having microfluidic (flow-through) channels, a fluorescence imaging system, a temperature measurement and control system; a pressure measurement and control system for applying variable pneumatic pressures to the microfluidic cartridge; a storage device for holding multiple reagents (e.g., a well-plate); a liquid handling system comprising at least one robotic pipettor for aspirating, mixing, and dispensing reagent mixtures to the microfluidic cartridge; systems for data storage, processing, and output; and a system controller to coordinate the various devices and functions.
    Type: Grant
    Filed: August 24, 2015
    Date of Patent: July 30, 2019
    Assignee: Canon U.S. Life Sciences, Inc.
    Inventors: Ivor T. Knight, Kenton C. Hasson, Johnathan S. Coursey, Hongye Liang, Sami Kanderian, Gregory H. Owen, Weidong Cao, Ying-Xin Wang, Scott Corey, Ben Lane, Conrad Laskowski, Alex Flamm, Brian Murphy, Eric Schneider, Takayoshi Hanagata, Hiroshi Inoue, Shulin Zeng, Brian Bean, Franklin Regan
  • Publication number: 20190178623
    Abstract: The structure has a subgrade or slope to be monitored and strip-shaped smart geosynthetic material compound devices. The strip-shaped smart geosynthetic material compound devices are buried to run through a subgrade or slope predicted slip crack surface. Gaps between the strip-shaped smart geosynthetic material compound devices and borehole inner walls are filled so that the force environment of the strip-shaped smart geosynthetic material compound devices is close to the subgrade or slope internal environment. Each strip-shaped smart geosynthetic material compound device has a strip-shaped geogrid, lead, and heat shrinkable tube. The lead is arranged in a length direction of the geogrid, and the lead and geogrid are fixedly connected at an interval of a set distance, with each fixed point forming a measuring point. The geogrid is wrapped in the heat shrinkable tube, and a free end of the lead is drawn out of the heat shrinkable tube.
    Type: Application
    Filed: September 29, 2017
    Publication date: June 13, 2019
    Applicant: SHANDONG UNIVERSITY
    Inventors: Xinzhuang CUI, Weidong CAO, Lei ZHANG, Junwei SU, Yilin WANG, Jun LI, Sheqiang CUI, Zhongxiao WANG
  • Patent number: 9542526
    Abstract: The present invention relates to methods and systems for temperature correction in thermal melt analysis. More specifically, embodiments of the invention relate to the correction of the melting temperature (Tm) observed for a sample nucleic acid due to the effect of the nucleic acid concentration.
    Type: Grant
    Filed: March 10, 2009
    Date of Patent: January 10, 2017
    Assignee: Canon U.S. Life Sciences, Inc.
    Inventor: Weidong Cao
  • Patent number: 9513196
    Abstract: The present invention relates to methods and systems for microfluidic DNA sample preparation. More specifically, embodiments of the present invention relate to methods and systems for the isolation of DNA from patient samples on a microfluidic device and use of the DNA for downstream processing, such as performing amplification reactions and thermal melt analysis on the microfluidic device.
    Type: Grant
    Filed: November 8, 2012
    Date of Patent: December 6, 2016
    Assignee: Canon U.S. Life Sciences, Inc.
    Inventors: Weidong Cao, Hiroshi Inoue, Kevin Louder
  • Publication number: 20160340668
    Abstract: The present invention relates to a method for concentrating a biological sample containing nucleic acids by using magnetic chitosan microparticles and subsequently performing a PCR reaction on the nucleic acids captured on the microparticles. The chitosan microparticles added to the biological sample at a PCR compatible pH are mechanically agitated to provide for cell lysis and simultaneous DNA capture, and then serve as a solid support for the nucleic acid template during the PCR reaction. As the chitosan microparticles are utilized for lysis and the nucleic acids do not need to be removed from the microparticles before PCR, the ease of the sample preparation procedure is dramatically improved.
    Type: Application
    Filed: May 20, 2016
    Publication date: November 24, 2016
    Applicants: UNIVERSITY OF MARYLAND, CANON U.S. LIFE SCIENCES, INC.
    Inventors: IAN M. WHITE, SRINIVASA RAGHAVAN, KUNAL R. PANDIT, IMALY NANAYAKKARA, WEIDONG CAO
  • Publication number: 20160051985
    Abstract: The present invention relates to systems and methods for the real time processing of nucleic acid during polymerase chain reaction (PCR) and thermal melt applications. According to an aspect of the invention, a system for the rapid serial processing of multiple nucleic acid assays is provided. In one embodiment, the system includes, but is not limited to: a microfluidic cartridge having microfluidic (flow-through) channels, a fluorescence imaging system, a temperature measurement and control system; a pressure measurement and control system for applying variable pneumatic pressures to the microfluidic cartridge; a storage device for holding multiple reagents (e.g., a well-plate); a liquid handling system comprising at least one robotic pipettor for aspirating, mixing, and dispensing reagent mixtures to the microfluidic cartridge; systems for data storage, processing, and output; and a system controller to coordinate the various devices and functions.
    Type: Application
    Filed: August 24, 2015
    Publication date: February 25, 2016
    Applicant: Canon U.S. Life Sciences, Inc.
    Inventors: Ivor T. KNIGHT, Kenton C. Hasson, Johnathan S. Coursey, Hongye Liang, Sami Kanderian, Gregory H. Owen, Weidong Cao, Ying-Xin Wang, Scott Corey, Ben Lane, Conrad Laskowski, Alex Flamm, Brian Murphy, Eric Schneider, Takayoshi Hanagata, Hiroshi Inoue, Shulin Zeng, Brian Bean, Franklin Regan
  • Patent number: 9114399
    Abstract: The present invention relates to systems and methods for the real time processing of nucleic acid during polymerase chain reaction (PCR) and thermal melt applications. According to an aspect of the invention, a system for the rapid serial processing of multiple nucleic acid assays is provided. In one embodiment, the system includes, but is not limited to: a microfluidic cartridge having microfluidic (flow-through) channels, a fluorescence imaging system, a temperature measurement and control system; a pressure measurement and control system for applying variable pneumatic pressures to the microfluidic cartridge; a storage device for holding multiple reagents (e.g., a well-plate); a liquid handling system comprising at least one robotic pipettor for aspirating, mixing, and dispensing reagent mixtures to the microfluidic cartridge; systems for data storage, processing, and output; and a system controller to coordinate the various devices and functions.
    Type: Grant
    Filed: August 31, 2011
    Date of Patent: August 25, 2015
    Assignee: Canon U.S. Life Sciences, Inc.
    Inventors: Ivor T. Knight, Kenton C. Hasson, Johnathan S. Coursey, Hongye Liang, Sami Kanderian, Gregory H. Owen, Weidong Cao, Ying-Xin Wang, Scott Corey, Ben Lane, Conrad Laskowski, Alex Flamm, Brian Murphy, Eric Schneider, Takayoshi Hanagata, Hiroshi Inoue, Shulin Zeng, Brian Bean, Franklin Regan
  • Patent number: 9114397
    Abstract: The present invention relates to a method for reducing cross-contamination in continuous amplification reactions in channels of microfluidic devices. More specifically, the present invention relates to the use of specific materials continuously flowing in the channels to reduce adsorption of MgCl2 and the concomitant adsorption of nucleic acid template to the channel surface, thereby reducing cross-contamination. This reduction of cross-contamination improves the efficiency and reproducibility of the amplification reaction, e.g., PCR.
    Type: Grant
    Filed: October 23, 2008
    Date of Patent: August 25, 2015
    Assignee: Canon U.S. Life Sciences, Inc.
    Inventor: Weidong Cao
  • Patent number: 8313906
    Abstract: The present invention relates to methods and systems for microfluidic DNA sample preparation. More specifically, embodiments of the present invention relate to methods and systems for the isolation of DNA from patient samples on a microfluidic device and use of the DNA for downstream processing, such as performing amplification reactions and thermal melt analysis on the microfluidic device.
    Type: Grant
    Filed: July 17, 2009
    Date of Patent: November 20, 2012
    Assignee: Canon U.S. Life Sciences, Inc.
    Inventors: Weidong Cao, Hiroshi Inoue, Kevin Louder
  • Patent number: D669594
    Type: Grant
    Filed: August 31, 2010
    Date of Patent: October 23, 2012
    Assignee: Canon U.S. Life Sciences, Inc.
    Inventors: Weidong Cao, Kenton C. Hasson, Ivor T. Knight, Takayoshi Hanagata
  • Patent number: D767782
    Type: Grant
    Filed: November 13, 2014
    Date of Patent: September 27, 2016
    Assignee: Canon U.S. Life Sciences, Inc.
    Inventors: Weidong Cao, Kenton C. Hasson, Ivor T. Knight, Takayoshi Hanagata, Chris Felice, Kazuhiko Hasegawa, Ronald Kurz, Scott Sundberg, Ralph McCann, Jason Clemons