Patents by Inventor Naoki Yasui

Naoki Yasui 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).

  • Front end structure of endoscope
    Patent number: 5725475
    Abstract: A cap assembly of a front end of an inserting portion of an endoscope and a cap to be attached to the front end of the endoscope, comprising; a first engaging portion provided on the front end of the inserting portion of the endoscope; and, a second engaging portion provided on the cap being disengageably engaged with the first engaging portion of the endoscope. The front end of the inserting portion of the endoscope is provided with a projection whose diameter being smaller than a diameter of the front end, the projection being connected to the front end through a stepped portion.
    Type: Grant
    Filed: September 12, 1996
    Date of Patent: March 10, 1998
    Assignee: Asahi Kogaku Kogyo Kabushiki Kaisha
    Inventors: Naoki Yasui, Hiroshi Iwata, Hiroyuki Katsurada, Keiji Ito, Takayuki Ogino