Patents by Inventor Mohamed Hammad Elsayed

Mohamed Hammad Elsayed 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).

  • Terahertz modulator and terahertz spatial light modulator
    Patent number: 12282213
    Abstract: A terahertz modulator includes a substrate and an organic semiconductor layer. A material of the organic semiconductor layer is graphitic carbon nitride, and the organic semiconductor layer is coated on a surface of the substrate. The terahertz modulator has a high on-off contrast and is able to reach a high modulation speed. A terahertz spatial light modulator includes a terahertz modulator and an automatic pumped light spatial modulator. The automatic pumped light spatial modulator is optically connected with the terahertz modulator. The terahertz spatial light modulator generates a patterned terahertz light, and the terahertz spatial light modulator has a high on-off contrast and is able to reach a high modulation speed.
    Type: Grant
    Filed: January 25, 2022
    Date of Patent: April 22, 2025
    Assignee: NATIONAL TSING HUA UNIVERSITY
    Inventors: Ho-Hsiu Chou, Shang-Hua Yang, Chia-Ming Mai, Mohamed Hammad Elsayed
  • Non-fullerene acceptor polymer
    Patent number: 11993676
    Abstract: A non-fullerene acceptor polymer includes a structure represented by formula (I). Formula (I) is defined as in the specification. The non-fullerene acceptor polymer has an electron donating unit and an electron attracting end group. The non-fullerene acceptor polymer uses phenyl or its derivatives as the linker to form the polymer.
    Type: Grant
    Filed: March 18, 2022
    Date of Patent: May 28, 2024
    Assignee: National Tsing Hua University
    Inventors: Ho-Hsiu Chou, Mohamed Hammad Elsayed, Chih-Wei Juan, Tse-Fu Huang
  • TERAHERTZ MODULATOR AND TERAHERTZ SPATIAL LIGHT MODULATOR
    Publication number: 20230060516
    Abstract: A terahertz modulator includes a substrate and an organic semiconductor layer. A material of the organic semiconductor layer is graphitic carbon nitride, and the organic semiconductor layer is coated on a surface of the substrate. The terahertz modulator has a high on-off contrast and is able to reach a high modulation speed. A terahertz spatial light modulator includes a terahertz modulator and an automatic pumped light spatial modulator. The automatic pumped light spatial modulator is optically connected with the terahertz modulator. The terahertz spatial light modulator generates a patterned terahertz light, and the terahertz spatial light modulator has a high on-off contrast and is able to reach a high modulation speed.
    Type: Application
    Filed: January 25, 2022
    Publication date: March 2, 2023
    Inventors: Ho-Hsiu CHOU, Shang-Hua YANG, Chia-Ming MAI, Mohamed Hammad ELSAYED
  • Non-Fullerene Acceptor Polymer
    Publication number: 20220380524
    Abstract: The present disclosure provides a non-fullerene acceptor polymer, which includes a structure represented by formula (I). Formula (I) is defined as in the specification. The non-fullerene acceptor polymer has an electron donating unit and an electron attracting end group. The non-fullerene acceptor polymer uses phenyl or its derivatives as the linker to form the polymer.
    Type: Application
    Filed: March 18, 2022
    Publication date: December 1, 2022
    Inventors: Ho-Hsiu Chou, Mohamed Hammad Elsayed, Chih-Wei Juan, Tse-Fu Huang