Patents by Inventor Tomio Yamaura

Tomio Yamaura 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).

  • Method and apparatus for detecting flaws in knitted fabric
    Patent number: 4748334
    Abstract: A proposal for detecting flaws not defining normal stitches in a knitted fabric. Fabric detection signals are derived from three detectors arranged to correspond to intervals between lines of thread defining stitches. The detection signals are then added with predetermined weights, and the signals thus weighted are subjected to adding and/or subtracting operations. As a result, the flaws not defining normal stitches in the knitted fabric are detected. According to this proposal, reliable detection is made of not only large flaws such as circular holes but narrow flaws such as runs also.
    Type: Grant
    Filed: April 8, 1987
    Date of Patent: May 31, 1988
    Assignee: Gunze Limited
    Inventors: Akira Kobayashi, Tomio Yamaura, Mizuo Nakayama, Hisao Itaya