Patents by Inventor Yasunori Hiraoka

Yasunori Hiraoka 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).

  • Instrument incorporated in a resectoscope
    Patent number: 4625713
    Abstract: An extractor for extracting the prostatic endogland from the exogland is employed in a resectoscope comprising a outer sheath to be insertd into the urinary track, a slide member provided longitudinally slidably with respect to said sheath at the trailing end portion and a telescope to be inserted through forwards said slide member to the tip of sheath and inserted between the hypertrophied prostatic endogland and exogland to extract said endogland from the exogland.
    Type: Grant
    Filed: December 13, 1983
    Date of Patent: December 2, 1986
    Assignee: Olympus Optical Co. Ltd.
    Inventor: Yasunori Hiraoka