Patents by Inventor Yao-Chang Chen

Yao-Chang 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).

  • SEMICONDUCTOR DEVICE AND METHOD FOR FABRICATING THE SAME
    Publication number: 20240154026
    Abstract: A semiconductor device includes a gate structure on a substrate, an offset spacer adjacent to the gate structure, a main spacer around the offset spacer, a source/drain region adjacent to two sides of the main spacer, a contact etch stop layer (CESL) adjacent to the main spacer, and an interlayer dielectric (ILD) layer around the CESL. Preferably, a dielectric constant of the offset spacer is higher than a dielectric constant of the main spacer.
    Type: Application
    Filed: January 17, 2024
    Publication date: May 9, 2024
    Inventors: Te-Chang Hsu, Chun-Chia Chen, Yao-Jhan Wang
  • Placental stem cell and methods thereof
    Patent number: 7534606
    Abstract: The present invention describes stem cells obtained from post-partum placenta and their methods of obtaining and culturing. The present invention also describes compositions comprising placental stem cells and methods of using placental stem cells.
    Type: Grant
    Filed: August 11, 2005
    Date of Patent: May 19, 2009
    Assignee: National Health Research Institutes
    Inventors: Yao-Chang Chen, Lin-Ju Yen, Chih-Cheng Chien, Hsing-I Huang
  • Placental stem cell and methods thereof
    Publication number: 20060030039
    Abstract: The present invention describes stem cells obtained from post-partum placenta and their methods of obtaining and culturing. The present invention also describes compositions comprising placental stem cells and methods of using placental stem cells.
    Type: Application
    Filed: August 11, 2005
    Publication date: February 9, 2006
    Inventors: Yao-Chang Chen, Lin-Ju Yen, Chih-Cheng Chien, Hsing-I Huang
  • Placental stem cell and methods thereof
    Publication number: 20050176139
    Abstract: The present invention describes stem cells obtained from post-partum placenta and their methods of obtaining and culturing. The present invention also describes compositions comprising placental stem cells and methods of using placental stem cells.
    Type: Application
    Filed: January 11, 2005
    Publication date: August 11, 2005
    Inventors: Yao-Chang Chen, Lin-Ju Yen, Chih-Cheng Chien, Hsing-I Huang