Patents by Inventor Yan-Ping Shen

Yan-Ping Shen 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).

  • Rack and optical drive utilizing the same
    Publication number: 20060207368
    Abstract: A rack and an optical drive utilizing the same. The rack comprises at least one full tooth, a first tooth lower than the full tooth, and a second tooth with the same height as the full tooth. The second tooth is adjacent to the first tooth and comprises a chamfer which is on the tooth crest and faces the first tooth to prevent the rack from blocking the gear.
    Type: Application
    Filed: March 13, 2006
    Publication date: September 21, 2006
    Inventors: Wen-Guang Hao, Yan-Ping Shen, Xue-Feng Tan