Patents by Inventor Hwa Feng Chang

Hwa Feng 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).

  • Publication number: 20090280391
    Abstract: Provided is a package structure for a fuel cell, including a first polar plate and a second polar plate. The first polar plate includes a first recess used to accommodate an anode of a membrane electrode assembly (MEA), and at least a first sealed flange surrounding the first recess. The second polar plate includes a second recess corresponding in position to the first recess and used to accommodate a cathode of the MEA, and at least a first sealed groove surrounding the second recess and corresponding in position to the first sealed flange. The first sealed flange and the first sealed groove are employed to hold by clamping the periphery of the proton exchange membrane of the MEA, so as to accomplish sealing.
    Type: Application
    Filed: November 11, 2008
    Publication date: November 12, 2009
    Applicant: OPTODISC TECHNOLOGY CORPORATION
    Inventors: Hwa-Feng Chang, Hsiang Po Tsai, Chung Ping Wang
  • Publication number: 20090214692
    Abstract: A hot press mold for a MEA of fuel cell is provided. The hot press mold includes: a first mold including a first alignment part; a second mold including a second alignment part, being piled up a first electrode, a film, and a second electrode on it, whereby the first and second alignment parts join together to pile the first electrode, the film, and the second electrode between the first and second mold; and a lock loop secures the edge of the first and second mold to fix the first and second mold.
    Type: Application
    Filed: July 8, 2008
    Publication date: August 27, 2009
    Applicant: OPTODISC TECHNOLOGY CORPORATION
    Inventors: Hwa Feng Chang, Hsiang Po Tsai, Chung Ping Wang