Patents by Inventor Masahiro Sobukawa

Masahiro Sobukawa 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).

  • Coil-like article supply device
    Patent number: 3973456
    Abstract: A device for providing coil springs carried by a rope wound about a rotatable drum to a prescribed position, one by one, comprises a separation mechanism having a guide hole in which a prescribed number of coil springs are received, a pair of movable plates to pull the rope, a pair of moving plates holding the coil spring fallen from the guide hole and a pair of blades for cutting the rope after the rope is pulled.
    Type: Grant
    Filed: July 22, 1975
    Date of Patent: August 10, 1976
    Assignee: Tokyo Shibaura Electric Co., Ltd.
    Inventors: Tsutomu Suzuki, Takeo Matsumoto, Masahiro Sobukawa