Patents by Inventor Masaru Inomata

Masaru Inomata 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: 6059846
    Abstract: A device for inspecting a high loop of a wire bonded on, for instance, a lead frame including a frame carrying stand, which guides and supports a lead frame, and an inspection roller, which is installed directly above the frame carrying stand. The inspection roller has frame pressing parts made as an insulating part so as to press the side portions of the lead frame against the frame carrying stand 31; and the inspection roller further has a wire detection part made as conductive parts provided between the frame pressing ring. A step or height difference between the frame pressing parts and the wire detection part is formed so as to be equal to the upper-limit value of the maximum height of wire loops formed by the bonded wire, and high loops that exceed the upper-limit value are detected by way of an electric current that flows when the wire detection part contacts the bonded wire.
    Type: Grant
    Filed: March 17, 1998
    Date of Patent: May 9, 2000
    Assignee: Kabushiki Kaisha Shinkawa
    Inventors: Hisashi Arai, Masaru Inomata, Masayuki Shimura