Patents by Inventor PINGWEE CHIA

PINGWEE CHIA 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).

  • Headphone device
    Patent number: 11363366
    Abstract: There is provided a headphone device including: an external magnet type magnet unit that is disposed outside a voice coil, and vibrates the voice coil; and a diaphragm that is vibrated by vibration of the voice coil, and formed of a material in which a dome section having an outward concave shape on an inner circumference of the voice coil is continuous with an edge section outside the voice coil.
    Type: Grant
    Filed: December 6, 2017
    Date of Patent: June 14, 2022
    Assignee: SONY CORPORATION
    Inventors: Koji Nageno, Kenichi Oide, Shinsuke Kanayama, Pingwee Chia, Chinngiap Heng
  • HEADPHONE DEVICE
    Publication number: 20210281944
    Abstract: There is provided a headphone device including: an external magnet type magnet unit that is disposed outside a voice coil, and vibrates the voice coil; and a diaphragm that is vibrated by vibration of the voice coil, and formed of a material in which a dome section having an outward concave shape on an inner circumference of the voice coil is continuous with an edge section outside the voice coil.
    Type: Application
    Filed: December 6, 2017
    Publication date: September 9, 2021
    Inventors: KOJI NAGENO, KENICHI OIDE, SHINSUKE KANAYAMA, PINGWEE CHIA, CHINNGIAP HENG