Patents by Inventor Jih-Hung Yeh

Jih-Hung Yeh 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).

  • HIGH ELECTRON MOBILITY TRANSISTOR DEVICE AND MANUFACTURING METHOD THEREOF
    Publication number: 20240079485
    Abstract: A high electron mobility transistor device including a channel layer, a first barrier layer, and a P-type gallium nitride layer is provided. The first barrier layer is disposed on the channel layer. The P-type gallium nitride layer is disposed on the first barrier layer. The first thickness of the first barrier layer located directly under the P-type gallium nitride layer is greater than the second thickness of the first barrier layer located on two sides of the P-type gallium nitride layer.
    Type: Application
    Filed: October 27, 2022
    Publication date: March 7, 2024
    Applicant: Powerchip Semiconductor Manufacturing Corporation
    Inventors: Jih-Wen Chou, Chih-Hung Lu, Bo-An Tsai, Zheng-Chang Mu, Po-Hsien Yeh, Robin Christine Hwang
  • Windscreen wiper supporting device
    Patent number: 7516511
    Abstract: A windscreen wiper supporting device comprises a hollow body, an interior of the body being installed with a retaining shaft; a lower side of the retaining shaft having a first magnetic unit; a second magnetic unit being at a lower side of the first magnetic unit and being within the body; the magnetic polarities of the first magnetic unit and second magnetic unit being identical; the body being formed with a through hole and a fixing hole; and an supporting rod having one end passing through the through hole; the retaining shaft and the fixing hole to be connected to the body; and another end of the supporting rod exposed out of the body so as to form as an supporting portion. The body has a cover and is installed with a combining seat which has a U shape or an H shape. The combining seat is installed with a nut and a screw.
    Type: Grant
    Filed: November 6, 2006
    Date of Patent: April 14, 2009
    Inventor: Jih-Hung Yeh
  • Windscreen wiper supporting device
    Publication number: 20080104791
    Abstract: A windscreen wiper supporting device comprises a hollow body, an interior of the body being installed with a retaining shaft; a lower side of the retaining shaft having a first magnetic unit; a second magnetic unit being at a lower side of the first magnetic unit and being within the body; the magnetic polarities of the first magnetic unit and second magnetic unit being identical; the body being formed with a through hole and a fixing hole; and an supporting rod having one end passing through the through hole; the retaining shaft and the fixing hole to be connected to the body; and another end of the supporting rod exposed out of the body so as to form as an supporting portion. The body has a cover and is installed with a combining seat which has a U shape or an H shape. The combining seat is installed with a nut and a screw.
    Type: Application
    Filed: November 6, 2006
    Publication date: May 8, 2008
    Inventor: Jih-Hung Yeh