Patents by Inventor Kuang C. Chang

Kuang C. 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).

  • Patent number: 5306532
    Abstract: A protective garment material is constructed with a matrix of cells with protrusions. These cells are linked with polygonal connecting plates, which have cuts at the corners to form a section of a complete frame for the protrusions. The linkage is formed with aligned semicylindrical flanges extended from the edges of the connecting plate and semicydrical grooves aligned in a different direction serving as sockets for the semicylindrical flanges from a neighboring connecting plate, so that any two neighboring plate can be rotated with respect to each other. The connecting plate also serves as a protective layer for the inner cell in the unprotruded area. The protrusions dirert any frontal thrust sidewise to prevent penetration.
    Type: Grant
    Filed: March 4, 1993
    Date of Patent: April 26, 1994
    Inventors: Vee C. Tsien, Kuang C. Chang
  • Patent number: 5155003
    Abstract: There is disclosed a thermal imaging laminar medium, actuatable in response to intense image-forming radiation for production of an image, and including a thermoplastic intermediate layer which, upon separation of the sheet-like or web materials of the laminar medium after thermal exposure, provides surface protection for one of the pair of images obtained thereby.
    Type: Grant
    Filed: November 21, 1990
    Date of Patent: October 13, 1992
    Assignee: Polaroid Corporation
    Inventor: Kuang C. Chang