Patents by Inventor Horng-Hwei Chen

Horng-Hwei 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).

  • Surface mounting device pick-and-place head
    Patent number: 4860438
    Abstract: An SMD pick-and-place head for picking an SMD (Surface Mounting Device) and placing it on a predetermined location of a PC board automatically. An SMD pick-and-place head also automatically centers a picked up SMD, so as to place the SMD at a predetermined location precisely. The SMD pick-and-place head comprises a body shell, a nozzle device, a vacuum source, an elevating device, two couples of centering links, a centering link drive mechanism, and a nozzle rotation drive mechanism.
    Type: Grant
    Filed: February 9, 1988
    Date of Patent: August 29, 1989
    Assignee: Industrial Technology Research Institute
    Inventor: Horng-Hwei Chen