Patents by Inventor Chiang-Yao CHEN

Chiang-Yao 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).

  • Gramophone record
    Patent number: 9886969
    Abstract: A gramophone record includes a main body and a cladding layer. The main body is made of a polymeric material, and has a base surface and an extending surface which extends downward from the base surface. The extending surface defines a continuous spiral groove in the main body. The cladding layer is formed on the extending surface, and has a Hardness Rockwell C (HRC) of not less than 37.
    Type: Grant
    Filed: March 22, 2016
    Date of Patent: February 6, 2018
    Assignee: ULVAC TAIWAN INC.
    Inventors: Yun-Hsiang Wei, Chiang-Yao Chen, Tung-Jung Wu, Li-Yen Chen
  • GRAMOPHONE RECORD
    Publication number: 20160322069
    Abstract: A gramophone record includes a main body and a cladding layer. The main body is made of a polymeric material, and has a base surface and an extending surface which extends downward from the base surface. The extending surface defines a continuous spiral groove in the main body. The cladding layer is formed on the extending surface, and has a Hardness Rockwell C (HRC) of not less than 37.
    Type: Application
    Filed: March 22, 2016
    Publication date: November 3, 2016
    Applicant: ULVAC TAIWAN INC
    Inventors: Yun-Hsiang WEI, Chiang-Yao CHEN, Tung-Jung WU, Li-Yen CHEN