Patents by Inventor Zhenjin ZHU

Zhenjin ZHU 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).

  • Speaker
    Patent number: 11968509
    Abstract: A speaker having a support structure having a bracket, and a vibration structure having a bend ring. The bend ring comprises an arc portion and an outer brim connected to the bracket. The outer brim of the bend ring extends downwardly to abut and connect to an outer brim of the top of the bracket, and the outer brim of the bend ring does not exceed the outermost end of the arc portion in the radial direction. The effective vibration area of a speaker is increased by using the above structure, so that the sensitivity of the speaker is improved.
    Type: Grant
    Filed: December 6, 2019
    Date of Patent: April 23, 2024
    Assignee: Harman International Industries, Incorporated
    Inventors: Hong Wen, Jihui Zeng, Yuanzhen Niu, Zhenjin Zhu
  • A MICRO SPEAKER WITH SYMMETRICAL VOICE COIL AND MAGNETIC CIRCUIT
    Publication number: 20220240020
    Abstract: An ultra slim micro-speaker is provided with a middle gasket between the voice coil and the diaphragm is provided. A distance between a top of a top plate and a top of the voice coil can be equal to a distance between a bottom of the top plate and a bottom of the voice coil, and a winding height has a symmetrical relationship in the magnetic circuit with a BL(x) curve of the magnetic circuit having improved symmetry.
    Type: Application
    Filed: May 30, 2019
    Publication date: July 28, 2022
    Applicant: HARMAN INTERNATIONAL INDUSTRIES, INCORPORATED
    Inventors: Zhenjin ZHU, Yuanzhen NIU, Jihui ZENG, Hong WEN
  • Speaker
    Publication number: 20210377666
    Abstract: A speaker having a support structure having a bracket, and a vibration structure having a bend ring. The bend ring comprises an arc portion and an outer brim connected to the bracket. The outer brim of the bend ring extends downwardly to abut and connect to an outer brim of the top of the bracket, and the outer brim of the bend ring does not exceed the outermost end of the arc portion in the radial direction. The effective vibration area of a speaker is increased by using the above structure, so that the sensitivity of the speaker is improved.
    Type: Application
    Filed: December 6, 2019
    Publication date: December 2, 2021
    Applicant: HARMAN INTERNATIONAL INDUSTRIES, INCORPORATED
    Inventors: Hong Wen, Jihui ZENG, Yuanzhen NIU, Zhenjin ZHU