Patents by Inventor Dongming Liu

Dongming 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).

  • Patent number: 12210505
    Abstract: Embodiments in the present description provide an operation request processing method and apparatus, and a device, and a readable storage medium, and a system. In the present embodiment, after obtaining an operation request for a data table, a read-write node can return a request processing completion message to a requester in time without waiting for all read-only nodes; a locking operation is performed on the data table, a log of locking the data table is written into a redo log file; and after status information of the log of locking is written into a status record, a monitoring processing process can achieve log playback monitoring of all the read-only nodes by using the status record and the log of locking. Thus, an asynchronous processing mechanism is achieved, and the stability and efficiency of operation request execution are improved.
    Type: Grant
    Filed: August 11, 2021
    Date of Patent: January 28, 2025
    Assignee: Alibaba Cloud Computing Co., Ltd.
    Inventors: Dongming Liu, Feifei Li, Xiaojian Fan, Songlu Cai, Guangzhou Zhang, Zhongxing Zhang
  • Publication number: 20250025546
    Abstract: Disclosed are a hexavalent norovirus VLP vaccine formulation and a preparation method thereof. The formulation comprises six proteins having amino acid sequences shown in SEQ ID No. 2, SEQ ID No. 4, SEQ ID No. 6, SEQ ID No. 8, SEQ ID No. 10, and SEQ ID No. 12. A Pichia pastoris expression system was used to develop the hexavalent norovirus vaccine. Sequencing, digestion, and exogenous gene expression detection were conducted to identify recombinant vectors and select high-expression strains. VLPs were purified by sucrose density gradient centrifugation and identified by electron microscopy, with the results demonstrating that the obtained candidate hexavalent vaccine VLPs had a purity of over 95% and each VLP was intact in structure and uniform in size, indicating structural integrity and stable performance of the VLPs. The hexavalent VLP vaccine induced long-lasting and high-titer antibody responses and generated specific blocking antibodies and T cell immune responses.
    Type: Application
    Filed: February 2, 2024
    Publication date: January 23, 2025
    Inventors: Hui Liu, Dongming Zhou, Di Xie, Lihui Lv, Man Xing, Jiling Ren, Wenli Hou
  • Publication number: 20240402222
    Abstract: A current detection circuit comprises a signal input terminal, a signal output terminal, a switch branch, a first current detection branch, and a second current detection branch. The switch branch is configured to block the current flowing from the signal output terminal to the signal input terminal when the switch branch is turned off. When the switch branch is conducting, the current flowing from the signal input terminal through the switch branch to the signal output terminal is the switch branch current comprising a first part linearly related to a first voltage difference, and a second part exponentially related to the first voltage difference. The first voltage difference is the voltage difference between the signal input terminal and the signal output terminal. The first current detection branch outputs a first detection current representing the first part. The second current detection branch outputs a second detection current representing the second part.
    Type: Application
    Filed: October 2, 2023
    Publication date: December 5, 2024
    Inventors: Dongming Liu, Xiaoliang Tan
  • Publication number: 20240213976
    Abstract: A calibration method includes obtaining an offset error of the overcurrent protection circuit by changing a current limiting state of the overcurrent protection circuit, adjusting an offset compensation circuit to calibrate the offset error of the overcurrent protection circuit and adjusting a gain calibration circuit based on the current limiting state of the overcurrent protection circuit to calibrate a gain error of the overcurrent protection circuit, wherein the overcurrent protection circuit comprises a first transistor, a second transistor, a third transistor, a first operational amplifier, a gain calibration circuit, an offset compensation circuit, and a driving circuit, and wherein the driving circuit is configured to receive a signal generated by the gain calibration circuit and generate a gate drive signal applied the first transistor and the third transistor.
    Type: Application
    Filed: September 25, 2023
    Publication date: June 27, 2024
    Applicant: Halo Microelectronics Co., Ltd
    Inventor: Dongming Liu
  • Publication number: 20240140787
    Abstract: A magnesium-based solid hydrogen storage material with liquid phase regulation function and a preparation method thereof and an application thereof in an all-solid-state battery are provided, belonging to the technical field of new energy. The magnesium-based solid hydrogen storage material with the liquid phase regulation function includes following raw materials in percentage by mass: 95% of magnesium hydride and 5% of lithium borohydride. Lithium borohydride as an ionic conductor is dispersed on a surface and matrix of magnesium hydride, which provides channels for the rapid hydrogen storage of the magnesium hydride-based materials.
    Type: Application
    Filed: July 13, 2023
    Publication date: May 2, 2024
    Inventors: Yongtao LI, Zhikang QIN, Xiaoli DING, Haiwen LI, Tingzhi SI, Dongming LIU, Qingan ZHANG
  • Publication number: 20230315713
    Abstract: Embodiments in the present description provide an operation request processing method and apparatus, and a device, and a readable storage medium, and a system. In the present embodiment, after obtaining an operation request for a data table, a read-write node can return a request processing completion message to a requester in time without waiting for all read-only nodes; a locking operation is performed on the data table, a log of locking the data table is written into a redo log file; and after status information of the log of locking is written into a status record, a monitoring processing process can achieve log playback monitoring of all the read-only nodes by using the status record and the log of locking. Thus, an asynchronous processing mechanism is achieved, and the stability and efficiency of operation request execution are improved.
    Type: Application
    Filed: August 11, 2021
    Publication date: October 5, 2023
    Inventors: Dongming LIU, Feifei LI, Xiaojian FAN, Songlu CAI, Guangzhou ZHANG, Zhongxing ZHANG
  • Publication number: 20230311268
    Abstract: The present disclosure includes methods of lapping that include energizing one or more elements that are located proximal to a first magnetoresistive element in a transducer region and generate heat and cause the first magnetoresistive element to selectively expand in the lapping direction relative to one or more other magnetoresistive elements. The present disclosure also includes methods of lapping that use one or more thermal sensors located proximal to the first magnetoresistive element to help control lapping in the lapping direction. The present disclosure includes related lapping systems and sliders.
    Type: Application
    Filed: May 19, 2023
    Publication date: October 5, 2023
    Inventors: Edwin Rejda, Andrew Habermas, Jeff O'Konski, Andrew Sherve, Michael Thomas Johnson, Dongming Liu
  • Patent number: 11691242
    Abstract: The present disclosure includes methods of lapping that include energizing one or more elements that are located proximal to a first magnetoresistive element in a transducer region and generate heat and cause the first magnetoresistive element to selectively expand in the lapping direction relative to one or more other magnetoresistive elements. The present disclosure also includes methods of lapping that use one or more thermal sensors located proximal to the first magnetoresistive element to help control lapping in the lapping direction. The present disclosure includes related lapping systems and sliders.
    Type: Grant
    Filed: April 14, 2022
    Date of Patent: July 4, 2023
    Assignee: Seagate Technology LLC
    Inventors: Edwin Rejda, Andrew Habermas, Jeff O'Konski, Andrew Sherve, Michael Thomas Johnson, Dongming Liu
  • Publication number: 20220234166
    Abstract: The present disclosure includes methods of lapping that include energizing one or more elements that are located proximal to a first magnetoresistive element in a transducer region and generate heat and cause the first magnetoresistive element to selectively expand in the lapping direction relative to one or more other magnetoresistive elements. The present disclosure also includes methods of lapping that use one or more thermal sensors located proximal to the first magnetoresistive element to help control lapping in the lapping direction. The present disclosure includes related lapping systems and sliders.
    Type: Application
    Filed: April 14, 2022
    Publication date: July 28, 2022
    Inventors: Edwin Rejda, Andrew Habermas, Jeff O'Konski, Andrew Sherve, Michael Thomas Johnson, Dongming Liu
  • Patent number: 11389924
    Abstract: The present disclosure includes methods of lapping that include energizing one or more elements that are located proximal to a first magnetoresistive element in a transducer region and generate heat and cause the first magnetoresistive element to selectively expand in the lapping direction relative to one or more other magnetoresistive elements. The present disclosure also includes methods of lapping that use one or more thermal sensors located proximal to the first magnetoresistive element to help control lapping in the lapping direction. The present disclosure includes related lapping systems and sliders.
    Type: Grant
    Filed: June 7, 2019
    Date of Patent: July 19, 2022
    Assignee: Seagate Technology LLC
    Inventors: Edwin Rejda, Andrew Habermas, Jeff O'Konski, Andrew Sherve, Michael Thomas Johnson, Dongming Liu
  • Patent number: 11034824
    Abstract: The invention relates to a polymer composition comprising a polymer (a) and a nanoparticle filler (b), wherein the polymer composition comprises a volume percentage (vol. %) of the nanoparticle filler (b), which is Dvol vol. %, and has a center-to-center average distance, in nanometer (nm), in two dimensions (2D) and with a free radius, from one nanoparticle to its nearest nanoparticle neighbour, which is R1st nm, and wherein the polymer composition shows a dependency between said center-to-center average distance to nearest neighbour, R1st, and said volume percentage, Dvol vol. %, which is R1st=E/(Dvol+0.3)+F, wherein Dvol1?Dvol?Dvol2, E1?E?E2, F1?F?F2, and Dvol1 is 0.010 and Dvol2 is 4.4, E1 is 100 and E2 is 280, and F1 is 50 and F2 is 140; an electrical device, e.g. a power cable; and a process for producing an electrical device.
    Type: Grant
    Filed: March 2, 2017
    Date of Patent: June 15, 2021
    Assignee: BOREALIS AG
    Inventors: Love Pallon, Amir Masoud Pourrahimi, Dongming Liu, Richard Olsson, Mikael Hedenqvist, Stanislaw Gubanski, Ulf Gedde
  • Publication number: 20200291209
    Abstract: The invention relates to a polymer composition comprising a polymer (a)and a nanoparticle filler (b), wherein the polymer composition comprises a weight percentage (wt. %) of the nanoparticle filler (b) which is A, wherein A is 0.05 wt. %,or more, and wherein the polymer composition has a first nanoparticle aggregate ratio which is B, wherein B is 0.50, or less, wherein a first aggregate size is defined as a cluster of nanoparticles with a cluster size larger than d1, wherein d is 1.0 ?m; an electrical device, e.g. a power cable; and a process for producing an electrical device.
    Type: Application
    Filed: March 2, 2017
    Publication date: September 17, 2020
    Inventors: Love PALLON, Amir Masoud POURRAHIMI, Dongming LIU, Richard OLSSON, Mikael HEDENQVIST, Stanislaw GUBANSKI, Ulf GEDDE
  • Publication number: 20200291208
    Abstract: The invention relates to a polymer composition comprising a polymer (a) and a nanoparticle filler (b), wherein the polymer composition comprises a volume percentage (vol. %) of the nanoparticle filler (b), which is Dvol vol. %, and has a center-to-center average distance, in nanometer (nm), in two dimensions (2D) and with a free radius, from one nanoparticle to its nearest nanoparticle neighbour, which is R1st nm, and wherein the polymer composition shows a dependency between said center-to-center average distance to nearest neighbour, R1st, and said volume percentage, Dvol vol. %, which is R1st=E/(Dvol+0.3)+F, wherein Dvol1?Dvol?Dvol2, E1?E?E2, F1?F?F2, and Dvol1 is 0.010 and Dvol2 is 4.4, E1 is 100 and E2 is 280, and F1 is 50 and F2 is 140; an electrical device, e.g. a power cable; and a process for producing an electrical device.
    Type: Application
    Filed: March 2, 2017
    Publication date: September 17, 2020
    Inventors: Love PALLON, Amir Masoud POURRAHIMI, Dongming LIU, Richard OLSSON, Mikael HEDENQVIST, Stanislaw GUBANSKI, Ulf GEDDE
  • Publication number: 20190381629
    Abstract: The present disclosure includes methods of lapping that include energizing one or more elements that are located proximal to a first magnetoresistive element in a transducer region and generate heat and cause the first magnetoresistive element to selectively expand in the lapping direction relative to one or more other magnetoresistive elements. The present disclosure also includes methods of lapping that use one or more thermal sensors located proximal to the first magnetoresistive element to help control lapping in the lapping direction. The present disclosure includes related lapping systems and sliders.
    Type: Application
    Filed: June 7, 2019
    Publication date: December 19, 2019
    Inventors: Edwin Rejda, Andrew Habermas, Jeff O'Konski, Andrew Sherve, Michael Thomas Johnson, Dongming Liu
  • Patent number: 9928873
    Abstract: An apparatus comprises a slider configured for writing data to and reading data from a magnetic recording medium and for heat-assisted magnetic recording. The slider comprises a heater configured to receive an AC signal and to cause oscillation in a spacing between the slider and the medium, and a contact sensor situated on the slider and configured to produce a DC response signal. A detector is coupled to the slider and configured to measure an amplitude of a spike in the DC response signal, calculate a ratio between the spike amplitude and an amplitude of the DC response signal, and detect contact between the slider and the medium in response to the ratio exceeding a predetermined threshold.
    Type: Grant
    Filed: June 30, 2017
    Date of Patent: March 27, 2018
    Assignee: SEAGATE TECHNOLOGY LLC
    Inventors: Dongming Liu, Huazhou Lou, Eric John McCalla, James Robert Oscarson, Shawn S. Silewski
  • Patent number: 9792940
    Abstract: Using a high sample rate dPES, together with pulsed heater and lock-in technique, to improve dPES SNR for contact detection between the head and media surface. Steps of powering a transducing head actuator with pulsed input signal at a select data track offset from a previously-written to data track of the storage medium, where the pulsed input signal has select amplitude and duty cycle to simulate a response signal, and further locking in an amplitude with respect to the heater frequency, can lead to a determination of level of heater power for initiating contact between the transducing head and the storage medium.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: October 17, 2017
    Assignee: Seagate Technology LLC
    Inventors: Lin Zhou, Juil Lee, Dongming Liu, Huazhou Lou
  • Patent number: 9548072
    Abstract: An apparatus comprises a heat-assisted magnetic recording (HAMR) head, a sensor, and a controller. The HAMR head is configured to interact with a magnetic storage medium. The sensor is configured to produce a signal indicating the occurrence of head-medium contact. The controller is configured to receive the signal and concurrently determine from the signal if the occurrence of head-medium contact is caused by a first contact detection parameter, a second contact detection parameter, or both the first and second contact detection parameters.
    Type: Grant
    Filed: February 11, 2015
    Date of Patent: January 17, 2017
    Assignee: SEAGATE TECHNOLOGY LLC
    Inventors: Huazhou Lou, Jason Riddering, Shawn S. Silewski, Dongming Liu, Lin Zhou
  • Publication number: 20160232931
    Abstract: An apparatus comprises a heat-assisted magnetic recording (HAMR) head, a sensor, and a controller. The HAMR head is configured to interact with a magnetic storage medium. The sensor is configured to produce a signal indicating the occurrence of head-medium contact. The controller is configured to receive the signal and concurrently determine from the signal if the occurrence of head-medium contact is caused by a first contact detection parameter, a second contact detection parameter, or both the first and second contact detection parameters.
    Type: Application
    Filed: February 11, 2015
    Publication date: August 11, 2016
    Inventors: Huazhou Lou, Jason Riddering, Shawn S. Silewski, Dongming Liu, Lin Zhou
  • Patent number: 9390741
    Abstract: A head transducer, configured to interact with a magnetic recording medium, includes a first sensor having a temperature coefficient of resistance (TCR) and configured to produce a first sensor signal, and a second sensor having a TCR and configured to produce a second sensor signal. One of the first and second sensors is situated at or near a close point of the head transducer in relation to the magnetic recording medium, and the other of the first and second sensors spaced away from the close point. Circuitry is configured to combine the first and second sensor signals and produce a combined sensor signal indicative of one or both of a change in head-medium spacing and head-medium contact. Each of the sensors may have a TCR with the same sign (positive or negative) or each sensor may have a TCR with a different sign.
    Type: Grant
    Filed: May 22, 2015
    Date of Patent: July 12, 2016
    Assignee: SAEGATE TECHNOLOGY LLC
    Inventors: Michael Thomas Johnson, Dongming Liu, Huazhou Lou, Declan Macken, Timothy William Stoebe, James Gary Wessel, Xuan Zheng
  • Patent number: 9202495
    Abstract: A method and apparatus are provided for positioning a transducer relative to a track of a data storage medium and inducing lateral modulation of transducer the relative to the track. An element of the transducer is actuated toward the storage medium during the lateral modulation, and atomic interaction is detected between the element and the storage medium because of a change in a response to the lateral modulation of the transducer due to the atomic interaction.
    Type: Grant
    Filed: May 1, 2007
    Date of Patent: December 1, 2015
    Assignee: SEAGATE TECHNOLOGY LLC
    Inventors: Dongming Liu, Lin Zhou, Lance E. Stover