Patents by Inventor Yip Sang

Yip Sang 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).

  • Transition metal luminescent complexes and methods of use
    Patent number: 12116378
    Abstract: Described herein are transition metal complexes containing nickel(II), as the central metal atom, and tridentate and tetradentate ligands. The transition metal complexes also include an ancillary ligand with strong ?-donating properties. The ancillary ligand enhances the luminescence by increasing the chances of populating the emissive state. The transition metal complexes are emissive at room temperature and/or low temperature in various media, rendering them useful as light-emitting materials for OLEDs.
    Type: Grant
    Filed: December 9, 2019
    Date of Patent: October 15, 2024
    Assignee: THE UNIVERSITY OF HONG KONG
    Inventors: Vivian Wing-Wah Yam, Yip-Sang Wong, Man-Chung Tang, Mei-Yee Chan
  • TRANSITION METAL LUMINESCENT COMPLEXES AND METHODS OF USE
    Publication number: 20200172562
    Abstract: Described herein are transition metal complexes containing nickel(II), as the central metal atom, and tridentate and tetradentate ligands. The transition metal complexes also include an ancillary ligand with strong ?-donating properties. The ancillary ligand enhances the luminescence by increasing the chances of populating the emissive state. The transition metal complexes are emissive at room temperature and/or low temperature in various media, rendering them useful as light-emitting materials for OLEDs.
    Type: Application
    Filed: December 9, 2019
    Publication date: June 4, 2020
    Inventors: Vivian Wing-Wah Yam, Yip-Sang Wong, Man-Chung Tang, Mei-Yee Chan
  • TRANSITION METAL LUMINESCENT COMPLEXES AND METHODS OF USE
    Publication number: 20200176691
    Abstract: Described herein are transition metal complexes containing nickel(II), as the central metal atom, and tridentate and tetradentate ligands. The transition metal complexes also include an ancillary ligand with strong ?-donating properties. The ancillary ligand enhances the luminescence by increasing the chances of populating the emissive state. The transition metal complexes are emissive at room temperature and/or low temperature in various media, rendering them useful as light-emitting materials for OLEDs.
    Type: Application
    Filed: December 4, 2019
    Publication date: June 4, 2020
    Inventors: Vivian Wing-Wah Yam, Yip-Sang Wong, Man-Chung Tang, Mei-Yee Chan
  • Method for encapsulating lead frame packages
    Publication number: 20050287715
    Abstract: A method of encapsulating a plurality of IC chips attached to a lead frame strip that includes an outer frame and a plurality of vertical and horizontal connecting bars attached to the outer frame in a manner that defines a plurality of inner frames arranged in a matrix pattern within the outer frame, each inner frame including an area where an IC chip from the plurality of IC chips is attached.
    Type: Application
    Filed: February 25, 2005
    Publication date: December 29, 2005
    Applicant: Carsem Semiconductor SDN. BHD.
    Inventors: Richard Yee Lum, Wong Heng, Lau Chuan, Goh Siang, Yip Sang