Patents by Inventor Hiromitsu Iwakoshi

Hiromitsu Iwakoshi 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).

  • Milling cutter
    Patent number: 4799838
    Abstract: A milling cutter having an internal thread in the end face of a shank thereof for preventing accidental detachment, wherein a small-diameter thread part provided in one end of an adapter is screwed in to the internal thread set forth above while a large-diameter thread part, or a large-diameter rod part provided in the other end of the adapter is screwed in to an internal thread, or inserted into a hole respectively arranged on the axis of a chuck, the rod part being secured with a set screw.
    Type: Grant
    Filed: April 8, 1986
    Date of Patent: January 24, 1989
    Assignees: Daishowa Seiki Co., Ltd., Mitsubishi Jukogyo Kabushiki Kaisha
    Inventors: Haruaki Kubo, Mitsuru Umeda, Hiromitsu Iwakoshi