Patents Assigned to Cathay Photonics Limited
  • Sapphire coated substrate with a flexible, anti-scratch and multi-layer coating
    Patent number: 11713503
    Abstract: A method for forming a substrate with a multi-layered, flexible, and anti-scratch metal oxides protective coating being deposited onto the substrate is provided in the present invention, wherein the top most layer of the coating comprises Al2O3 or a mixture thereof such that the top most layer acts as an anti-scratching layer. The multi-layered, flexible and anti-scratch metal oxides protective coating also retains the flexibility of the underlying substrate.
    Type: Grant
    Filed: April 24, 2019
    Date of Patent: August 1, 2023
    Assignees: Hong Kong Baptist University, Cathay Photonics Limited
    Inventors: Kok Wai Cheah, Wing Yui Lam, Yu Wai Chan, Shing Chi Tse, Suet Ying Ching, Hoi Lam Tam