Patents by Inventor Hongguo ZHANG

Hongguo ZHANG 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: 12196582
    Abstract: A high-precision multi-pole magnetoelectric encoder includes a mounting seat, a rotating shaft, a single-pole magnet ring, a single-pole signal processing board, a shielding shell, an n-pole magnet ring, an n-pole signal processing board, a housing, a conductive rubber pad, an aviation plug, bearings, copper columns, Hall components, and assembly screws. The magnetoelectric encoder improves the environmental adaptability and replaceability of the high-precision multi-pole magnetoelectric encoder by redesigning the structure of the multi-pole encoder. It eliminates errors caused by changes in the position of magnets and Hall sensors during the replacement process, reduces interference caused by the multi-pole magnet encircling the single-pole magnet, enhances resistance to electromagnetic interference, thereby increasing the detection accuracy of the magnetoelectric encoder, and improves the performance and competitiveness of the product.
    Type: Grant
    Filed: October 29, 2024
    Date of Patent: January 14, 2025
    Assignee: TANGSHAN POLYTECHNIC UNIVERSITY
    Inventors: Kun Dai, Hongguo Zhang, Xiuchun Gao, Xinghai Li, Zhensheng Wang, Ruijia Dong, Yuxin Zhang, Chao Tian, Shihui Dong, Jie Yu, Haifeng Zhang, Yang Shao, Jing Li, Yanchen Chang
  • Patent number: 11742120
    Abstract: A two-step diffusion method for preparing high-performance dual-main-phase sintered mischmetal-iron-boron magnet belongs to the preparing technical field of rare earth permanent magnet materials. The compositions of the two main phase alloys are RE-Fe—B (RE is Nd or Pr) and (Nd, MM)-Fe—B (MM is mischmetal), respectively. First, PrHoFe strip-casting alloy is used as a diffusion source. Next, a PrHo-rich layer is uniformly coated on the surface of (Nd, MM)-Fe—B hydrogen decrepitation powders. The higher anisotropic fields of Pr2Fe14B and Ho2Fe14B are used to improve the coercivity. Then, the ZrCu strip-casting alloy is used as a diffusion source. A Zr-rich layer is uniformly coated on the surface of the powders after the first-step diffusion, which prevents the growth of the MM-rich main phase grains during the sintering process and the inter-diffusion between the two main phases, thus obtaining high coercivity.
    Type: Grant
    Filed: November 5, 2021
    Date of Patent: August 29, 2023
    Assignee: BEIJING UNIVERSITY OF TECHNOLOGY
    Inventors: Weiqiang Liu, Hao Chen, Ming Yue, Zhi Li, Yantao Yin, Yuqing Li, Hongguo Zhang
  • Publication number: 20220059262
    Abstract: A two-step diffusion method for preparing high-performance dual-main-phase sintered mischmetal-iron-boron magnet belongs to the preparing technical field of rare earth permanent magnet materials. The compositions of the two main phase alloys are RE-Fe—B (RE is Nd or Pr) and (Nd, MM)-Fe—B (MM is mischmetal), respectively. First, PrHoFe strip-casting alloy is used as a diffusion source. Next, a PrHo-rich layer is uniformly coated on the surface of (Nd, MM)-Fe—B hydrogen decrepitation powders. The higher anisotropic fields of Pr2Fe14B and Ho2Fe14B are used to improve the coercivity. Then, the ZrCu strip-casting alloy is used as a diffusion source. A Zr-rich layer is uniformly coated on the surface of the powders after the first-step diffusion, which prevents the growth of the MM-rich main phase grains during the sintering process and the inter-diffusion between the two main phases, thus obtains high coercivity.
    Type: Application
    Filed: November 5, 2021
    Publication date: February 24, 2022
    Inventors: Weiqiang Liu, Hao Chen, Ming Yue, Zhi Li, Yantao Yin, Yuqing Li, Hongguo Zhang
  • Patent number: 9430020
    Abstract: The embodiments of the present disclosure provide a method, a device and a system for data stream transmission, which relate to the field of communication, and can reduce the energy consumption of the data stream transmission between devices. The method includes: receiving, by a resting device, a message indicating to enter into an energy-saving state; after receiving the message indicating to enter into the energy-saving state, sending, by the resting device, stored user information to an on-duty device so that the on-duty device receives and synchronizes user information; and, after the user information is synchronized, setting, by the resting device, the transmission state of the resting device as standby and entering into a sleeping state. The embodiments of the present disclosure are used for data stream transmission.
    Type: Grant
    Filed: February 10, 2014
    Date of Patent: August 30, 2016
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Hongguo Zhang, Guofeng Qian, Chengguang Niu, Qi Zhang
  • Patent number: 9389669
    Abstract: The embodiments of the present disclosure provide a method, a device and a system for data stream transmission, which relate to the field of communication, and can reduce the energy consumption of the data stream transmission between devices. The method includes: receiving, by a resting device, a message indicating to enter into an energy-saving state; after receiving the message indicating to enter into the energy-saving state, sending, by the resting device, stored user information to an on-duty device so that the on-duty device receives and synchronizes user information; and, after the user information is synchronized, setting, by the resting device, the transmission state of the resting device as standby and entering into a sleeping state. The embodiments of the present disclosure are used for data stream transmission.
    Type: Grant
    Filed: February 10, 2014
    Date of Patent: July 12, 2016
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Hongguo Zhang, Guofeng Qian, Chengguang Niu, Qi Zhang
  • Publication number: 20140157014
    Abstract: The embodiments of the present disclosure provide a method, a device and a system for data stream transmission, which relate to the field of communication, and can reduce the energy consumption of the data stream transmission between devices. The method includes: receiving, by a resting device, a message indicating to enter into an energy-saving state; after receiving the message indicating to enter into the energy-saving state, sending, by the resting device, stored user information to an on-duty device so that the on-duty device receives and synchronizes user information; and, after the user information is synchronized, setting, by the resting device, the transmission state of the resting as standby and entering into a sleeping state. The embodiments of the present disclosure are used for data stream transmission.
    Type: Application
    Filed: February 10, 2014
    Publication date: June 5, 2014
    Applicant: Huawei Technologies Co., Ltd.
    Inventors: Hongguo ZHANG, Guofeng QIAN, Chengguang NIU, Qi ZHANG