Patents by Inventor Zhongming Chen

Zhongming Chen 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: 20240076243
    Abstract: The present disclosure relates to a method for preparing a silicon nitride ceramic material. The method including: (1) with at least one of silicon powder and silicon nitride powder as original powder and Y2O3 powder and MgO powder as sintering aids, the original powder and the sintering aids are mixed in a protective atmosphere, and the mixture is formed into a green body; (2) the resulting green body is put into a reducing atmosphere and pretreated at 500° C. to 800° C. to obtain a biscuit; and the reducing atmosphere is a hydrogen/nitrogen mixed atmosphere with a hydrogen content not higher than 5%; (3) the resulting biscuit is put into a nitrogen atmosphere and subjected to low-temperature heat treatment at 1600° C. to 1800° C. and high-temperature heat treatment at 1800° C. to 2000° C. in sequence.
    Type: Application
    Filed: January 17, 2022
    Publication date: March 7, 2024
    Inventors: Xuejian LIU, Hui ZHANG, Zhengren HUANG, Xiumin YAO, Jindi JIANG, Zhongming CHEN
  • Publication number: 20240067577
    Abstract: A preparation method for a copper plate-covered silicon nitride ceramic substrate is provided. The structure of the copper plate-covered silicon nitride ceramic substrate includes a silicon nitride ceramic substrate, copper sheets disposed on the upper and lower sides of the silicon nitride ceramic substrate and soldering layers disposed between the copper sheets and the silicon nitride ceramic substrate; the composition of the silicon nitride ceramic substrate comprises a silicon nitride phase (more than or equal to 95 wt %); and a grain boundary phase (containing at least three elements (Y, Mg and O) and less than or equal to 5 wt %, and the content of a crystalline phase in the grain boundary phase is more than or equal to 40 vol %); and the sintering aids are Y2O3 and MgO. The two-step sintering process comprises: in a nitrogen atmosphere, performing low-temperature heat treatment and high-temperature heat treatment in sequence.
    Type: Application
    Filed: January 17, 2022
    Publication date: February 29, 2024
    Inventors: Xuejian LIU, Hui ZHANG, Xiumin YAO, Yan LIU, Jindi JIANG, Zhengren HUANG, Zhongming CHEN
  • Publication number: 20240067576
    Abstract: The present disclosure relates to a batch sintering method for a high-property silicon nitride ceramic substrate. The batch sintering method includes: (1) silicon nitride ceramic substrate green bodies are stacked and put into a boron nitride crucible, and a layer of boron nitride powder is applied between adjacent silicon nitride ceramic substrate green bodies; (2) after step-by-step vacuumization, debinding is performed in a nitrogen atmosphere or a reducing atmosphere at 500° C. to 900° C.; (3) gas pressure sintering is then performed in a nitrogen atmosphere at 1800° C. to 2000° C., completing the batch preparation of the high-property silicon nitride ceramic substrate.
    Type: Application
    Filed: January 17, 2022
    Publication date: February 29, 2024
    Inventors: Hui ZHANG, Xuejian LIU, Jindi JIANG, Xiumin YAO, Zhengren HUANG, Zhongming CHEN, Jian HUANG
  • Publication number: 20240061918
    Abstract: User biometric information based authentication techniques are provided for a wearer of a near-eye display device in engagement with multimedia content and/or access to restricted data. Biological and/or behavioral biometric information associated with the user may be captured through sensors and similar devices integrated or communicatively coupled to the near-eye display device. The biological biometric information may include data associated with a user's face, fingerprint, palmprint, iris, retina, cardio-electrical signals, etc. The behavioral biometric information may include data associated with a user's movement, gait, gesture(s), voice, etc. An authentication technique may be automatically select one based on environmental conditions (e.g., noise or light levels). Near-eye display device may detect continuous wearing by the user and refresh or continue authentication following a period of non-use or between two different authenticated sessions.
    Type: Application
    Filed: February 24, 2023
    Publication date: February 22, 2024
    Applicant: Meta Platforms Technologies, LLC
    Inventors: Nan WANG, Bruce WANG, Zhongming CHEN, David TAO, Hind HOBEIKA
  • Publication number: 20230361601
    Abstract: According to examples, a charging interface for a wearable device may include a receiver coil arranged inside the wearable device; a transmitter coil arranged outside the wearable device, where the transmitter coil is to generate a charging voltage for the wearable device via magnetic induction with the receiver coil. The charging interface may include a first pair of magnets having respective polarity axes and positioned at top and bottom portions of the transmitter coil, and a second pair of magnets having respective polarity axes and positioned at top and bottom portions of the receiver coil. The polarity axes to may be aligned with an attachment plane between the transmitter coil and the receiver coil. Furthermore, the polarity axes of the first pair of magnets may be reversed with respect to corresponding second pair of magnets.
    Type: Application
    Filed: April 4, 2023
    Publication date: November 9, 2023
    Applicant: Meta Platforms Technologies, LLC
    Inventors: Baifeng CHEN, Yewching CHEN, Zhongming CHEN, David TAO, Tony DAVID
  • Publication number: 20220256427
    Abstract: Methods, apparatus, and systems for wireless communication are described. In one example aspect, a method includes performing, by a communication node, a handover procedure from a source base station to a target base station based on information associated with a Protocol Data Unit (PDU) session. The information indicates that at least one tunnel in a list of tunnels that carry user data has a one-to-one correspondence with a Quality of Service (QoS) flow. The method also includes transmitting, for the handover procedure, downlink data to both the source base station and the target base station by the communication node.
    Type: Application
    Filed: April 29, 2022
    Publication date: August 11, 2022
    Inventors: Zhongming CHEN, He HUANG, Xiaojuan SHI, Jing LIU
  • Patent number: 11019579
    Abstract: A power control method includes: acquiring a power allocation rule; and allocating a transmit power of a UE for each of base stations according to the power allocation rule when receiving a handover instruction or starting to access a target side, and communicating with each of the base stations according to the transmit power; where the base stations include all source base stations before a handover and all target base stations after the handover.
    Type: Grant
    Filed: June 13, 2017
    Date of Patent: May 25, 2021
    Assignee: ZTE CORPORATION
    Inventor: Zhongming Chen
  • Patent number: 10954128
    Abstract: A method of producing fibrous carbon nanostructures uses a fluidized bed process, and comprises supplying a source gas to a reaction site in which a supported catalyst having a particulate carrier and a catalyst supported on a surface of the carrier is fluidizing, to form fibrous carbon nanostructures on the catalyst of the supported catalyst, wherein the source gas contains a double bond-containing hydrocarbon and carbon dioxide, and a content of the carbon dioxide is 0.3 vol % or more with respect to a total volume of the source gas.
    Type: Grant
    Filed: January 20, 2017
    Date of Patent: March 23, 2021
    Assignees: WASEDA UNIVERSITY, ZEON CORPORATION
    Inventors: Suguru Noda, Soichiro Hachiya, Zhongming Chen, Takayoshi Hongo
  • Patent number: 10699243
    Abstract: A business model data management method can include identifying a business object within a business object structure document for a business application, locating data management rules for the identified business object in a business object descriptor document, and executing the located data management rules to represent the identified business object in a database for the business application.
    Type: Grant
    Filed: August 10, 2017
    Date of Patent: June 30, 2020
    Assignee: HCL TECHNOLOGIES LIMITED
    Inventors: Zhongming Chen, Hongling Zhang
  • Publication number: 20200107302
    Abstract: Disclosed are a numerology configuration method and apparatus, and a storage medium. The method includes configuring a media access control (MAC) parameter subset of a MAC layer operation.
    Type: Application
    Filed: September 24, 2019
    Publication date: April 2, 2020
    Inventors: Zhongming Chen, He Huang
  • Publication number: 20200045702
    Abstract: Methods, systems, and devices related to the management of bandwidth parts (BWPs) by a user equipment (UE) or a base station are disclosed. In one exemplary aspect, a method for wireless communication includes establishing, at a mobile device, a network connection with a first cell; receiving, at a mobile device, a message indicating an activation of a second cell and a first bandwidth part to be used by the mobile device upon the activation of the second cell, wherein a bandwidth part represents a logical grouping of frequency bandwidth of a cell; performing, based on the message, a random access process with the second cell using the first bandwidth part; and switching to a second bandwidth part of the second cell when the random access process fails.
    Type: Application
    Filed: October 8, 2019
    Publication date: February 6, 2020
    Inventors: Zhongming Chen, He Huang
  • Patent number: 10526707
    Abstract: A heat exchanger type reaction tube includes a first tube part that forms a first flow channel into which a feed gas flows and in which the feed gas moves down; a second tube part that forms a second flow channel which is connected to the first flow channel and in which the feed gas moves up and that has a granular catalyst carrying support medium charged therein; and a heating device that heats the first tube part and the second tube part. Then, the first flow channel and the second flow channel are adjacent to each other while being separated from each other by a partition wall, and the second flow channel is provided with a distributor which holds the catalyst carrying support medium and through which the feed gas passes.
    Type: Grant
    Filed: July 28, 2013
    Date of Patent: January 7, 2020
    Assignees: THE UNIVERSITY OF TOKYO, HITACHI CHEMICAL COMPANY, LTD.
    Inventors: Suguru Noda, Dong Young Kim, Yusuke Kon, Zhongming Chen, Eisuke Haba, Shunsuke Ueda
  • Publication number: 20190268859
    Abstract: A power control method includes: acquiring a power allocation rule; and allocating a transmit power of a UE for each of base stations according to the power allocation rule when receiving a handover instruction or starting to access a target side, and communicating with each of the base stations according to the transmit power; where the base stations include all source base stations before a handover and all target base stations after the handover.
    Type: Application
    Filed: June 13, 2017
    Publication date: August 29, 2019
    Inventor: Zhongming CHEN
  • Patent number: 10357765
    Abstract: The present invention relates to metal catalyst particles for carbon nanotube synthesis, comprising carbon-containing regions on their surfaces.
    Type: Grant
    Filed: June 20, 2013
    Date of Patent: July 23, 2019
    Assignees: THE UNIVERSITY OF TOKYO, HITACHI CHEMICAL COMPANY, LTD.
    Inventors: Suguru Noda, Zhongming Chen, Dong Young Kim, Shunsuke Ueda, Eisuke Haba
  • Publication number: 20190055128
    Abstract: A method of producing fibrous carbon nanostructures uses a fluidized bed process, and comprises supplying a source gas to a reaction site in which a supported catalyst having a particulate carrier and a catalyst supported on a surface of the carrier is fluidizing, to form fibrous carbon nanostructures on the catalyst of the supported catalyst, wherein the source gas contains a double bond-containing hydrocarbon and carbon dioxide, and a content of the carbon dioxide is 0.3 vol % or more with respect to a total volume of the source gas.
    Type: Application
    Filed: January 20, 2017
    Publication date: February 21, 2019
    Applicants: WASEDA UNIVERSITY, ZEON CORPORATION
    Inventors: Suguru NODA, Soichiro HACHIYA, Zhongming CHEN, Takayoshi HONGO
  • Patent number: 10091687
    Abstract: The embodiments of the present document propose a method and apparatus for reporting and receiving a buffer status. The method includes: when a terminal judges that there is a split bearer or receives a notification transmitted by a base station that an additional buffer report is required to be reported, the terminal transmitting a Buffer Status Report (BSR) of the radio bearer to the base station; herein the BSR carries size information about buffer data and size information about additional buffer data of the radio bearer. The embodiments of the present document realize the reporting of a buffer status when there is a split bearer.
    Type: Grant
    Filed: May 30, 2014
    Date of Patent: October 2, 2018
    Assignee: ZTE CORPORATION
    Inventor: Zhongming Chen
  • Patent number: 10085286
    Abstract: Disclosed is a method for conducting random access on a small cell under dual connectivity. The method includes that: a User Equipment (UE) sends a dedicated random access preamble corresponding to a designated small cell to a base station to which the designated small cell belongs on the designated small cell; and the UE receives a random access response message sent by a base station to which a master control cell in dual connectivity belongs or the base station to which the designated small cell belongs. The present disclosure also discloses a system for conducting random access on a small cell under dual connectivity, a base station, a UE and a computer storage medium.
    Type: Grant
    Filed: April 22, 2014
    Date of Patent: September 25, 2018
    Assignee: ZTE Corporation
    Inventor: Zhongming Chen
  • Patent number: 10075871
    Abstract: A method for sending a Buffer Status Report (BSR) is provided, which includes that: an Evolved Node B (eNB) sends an allocation rule for buffer data of a radio bearer which are to be allocated among eNBs to User Equipment (UE), the allocation rule including allocation proportion information or including allocation proportion information and an applicable condition of the allocation proportion information; and the eNB receives a BSR from the UE, the BSR being determined by the UE according to the allocation rule. Correspondingly, the embodiments of the present disclosure further provide an eNB, UE and a computer storage medium.
    Type: Grant
    Filed: May 20, 2014
    Date of Patent: September 11, 2018
    Assignee: ZTE Corporation
    Inventor: Zhongming Chen
  • Patent number: 9999007
    Abstract: The disclosure discloses a reporting method, device and system for a Power Headroom Report (PHR) in dual connectivity. A first Evolved Node B (eNB) and a second eNB establish split Data Radio Bearers (DRBs) with a User Equipment (UE), and transmit an indication for indicating change in uplink transmission to the UE; the UE determines the change in the uplink transmission of the split DRBs, and triggers and reports the PHR to the first eNB and/or the second eNB according to the change in the uplink transmission respectively; and the first eNB and/or the second eNB receive/receives the PHR reported by the UE respectively. The disclosure also discloses the reporting device and system for the PHR in the dual connectivity.
    Type: Grant
    Filed: September 12, 2014
    Date of Patent: June 12, 2018
    Assignee: ZTE Corporation
    Inventor: Zhongming Chen
  • Patent number: 9986588
    Abstract: A random access method and device relate to the field of mobile communication, and solve the problem of triggering a random access procedure of a small cell. The method comprises a terminal detecting whether a small cell random access condition is satisfied at present; the terminal automatically initiating a random access procedure of a small cell when the small cell random access condition is satisfied. The technical scheme provided in the embodiments of the present document is applicable to the LTE system, and the random access mechanism of a small cell is achieved.
    Type: Grant
    Filed: April 16, 2014
    Date of Patent: May 29, 2018
    Assignee: ZTE CORPORATION
    Inventors: Zhongming Chen, Yada Huang