Patents by Inventor Ming-Hui Chang

Ming-Hui Chang 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).

  • Supporting column and cassette using the same
    Publication number: 20040069732
    Abstract: A supporting column (30) of the present invention includes a main body (31) and a stiff shaft (33). The main body (31) includes a half-sleeve shaft (319) and a plurality of parallel wing panels (317) encircling portions of the half-sleeve shaft. The main body has a C-shaped cross section and defines an axial bore along an axis direction. The wing panels are formed perpendicular to the half-sleeve shaft and each wing panel provides a protrusion (318) in the middle of the wing panel. A cassette (40) incorporating the supporting columns is used to accommodate a plurality of substrates.
    Type: Application
    Filed: August 18, 2003
    Publication date: April 15, 2004
    Inventors: Chun Kai Huang, Ming-Hui Chang