Patents by Inventor Hou-Chieh Cheng

Hou-Chieh Cheng 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).

  • Polybenzoxazole precursor and application thereof
    Patent number: 11976170
    Abstract: The present invention provides a polybenzoxazole precursor, which comprises a structure of formula (I): wherein the definitions of Y, Z, R1, i, j, and V are provided herein. By means of the polybenzoxazole precursor, the resin composition of the present invention is able to form a film with high frequency characteristics and high contrast.
    Type: Grant
    Filed: July 5, 2022
    Date of Patent: May 7, 2024
    Assignee: MICROCOSM TECHNOLOGY CO., LTD.
    Inventors: Steve Lien-chung Hsu, Yu-Ching Lin, Yu-Chiao Shih, Hou-Chieh Cheng
  • Polybenzoxazole Precursor and Application Thereof
    Publication number: 20230041833
    Abstract: The present invention provides a polybenzoxazole precursor, which comprises a structure of formula (I): wherein the definitions of Y, Z, R1, i, j, and V are provided herein. By means of the polybenzoxazole precursor, the resin composition of the present invention is able to form a film with high frequency characteristics and high contrast.
    Type: Application
    Filed: July 5, 2022
    Publication date: February 9, 2023
    Applicant: MICROCOSM TECHNOLOGY CO., LTD.
    Inventors: Steve Lien-chung Hsu, Yu-Ching Lin, Yu-Chiao Shih, Hou-Chieh Cheng