Patents by Inventor Chunla Liu

Chunla 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).

  • VIBRATING DIAPHRAGM OF SOUND-PRODUCING APPARATUS AND SOUND-PRODUCING APPARATUS
    Publication number: 20240117154
    Abstract: Disclosed are a vibrating diaphragm of a sound-producing apparatus and the sound-producing apparatus. The vibrating diaphragm includes at least one elastomer layer, wherein the elastomer layer is made of butadiene rubber; the butadiene rubber is any one of nickel butadiene rubber, rare earth butadiene rubber and cobalt butadiene rubber, and a content of cis-form is greater than 80% to 100%. The vibrating diaphragm of the present disclosure can maintain excellent acoustic performance under extreme conditions of low temperature. (FIG.
    Type: Application
    Filed: December 25, 2019
    Publication date: April 11, 2024
    Applicant: Goertek Inc.
    Inventors: WEIFENG PENG, Fengguang Ling, Chun Li, Chunla Liu