Patents by Inventor Eiji Shigeyoshi

Eiji Shigeyoshi 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).

  • Weft sensing imaging system for weaving machine
    Patent number: 5251673
    Abstract: A weft sensing system for a weaving machine such as an air jet loom or a water jet loom includes an image sensor camera for scanning at least a line passing through a weft insertion path to detect an abnormal weft insertion. The image sensor camera is set to perform one or more scans in each pick, and connected with an image processor which monitors the size or position of an image of a weft yarn. Preferably, the image sensor camera is positioned on the front side of the reed.
    Type: Grant
    Filed: December 26, 1991
    Date of Patent: October 12, 1993
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Masahiro Adachi, Keizo Shizuka, Eiji Shigeyoshi