Patents by Inventor Kunio Iijima

Kunio Iijima 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: 4773941
    Abstract: A method for washing an impregnated porous workpiece including a step of rotating the impregnated porous workpiece after excessive impregnant has been shaken off, in such a manner that the workpiece is immersed in and comes out of a washing liquid contained in a washing tank, forcibly causing the washing liquid to go in and out of a recessed portion such as a hole bored in the workpiece to thereby dilute and wash away residual impregnant adhering to the inside of the recessed portion.
    Type: Grant
    Filed: March 24, 1986
    Date of Patent: September 27, 1988
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Kunio Iijima, Hiromitsu Suganuma, Makoto Otsubo