Patents by Inventor Yoshikatsu Nagayama, deceased

Yoshikatsu Nagayama, deceased 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).

  • Endoscope apparatus capable of being switched to a mode in which a curvature operating lever is returned and to a mode in which the curvature operating lever is not returned
    Patent number: 5658238
    Abstract: A curvature section provided in an insertable section is curved in response to a curving instructing signal output by the operation of a curving operating switch. In case the curving operating switch is of a joy stick type having an operating lever, in response to the operation of a switching switch, a mode in which the inclination angle of the operating lever is held and a mode in which the inclination angle of the operating lever is returned to a neutral position in which it is zero will be switched and the curvature section will be of a curvature angle following the inclination angle of the operating lever.In case the curving operating switch is of a joy pad type comprising a plurality of on/off switches, in response to the operation of the switching switch, the curvature instructing signal will be held or reset.
    Type: Grant
    Filed: March 6, 1995
    Date of Patent: August 19, 1997
    Assignee: Olympus Optical Co., Ltd.
    Inventors: Akira Suzuki, Hiroki Hibino, Yoshikatsu Nagayama, deceased, Akemi Nagayama, heiress, Yuuki Nagayama, heir, Motokazu Nakamura