Patents by Inventor Hachioji Okada

Hachioji Okada 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).

  • Forward viewing endoscope with specific cover for photographic cassette opening
    Patent number: 4219013
    Abstract: A forward viewing tape endoscope comprises a head body having a photographic optical system disposed at the forward end of the head body and a film cassette chamber provided behind the photographic optical system, an outer tube surrounding the head body and having an opening bored in the peripheral wall to effect communication between the film cassette chamber and outer tube, and a cover detachably mounted on the opening by a tightening device. The replacement of a film cassette is carried out without the insertion and withdrawal of the head body and the undesirable exposure of the photographic optical system to the atmosphere.
    Type: Grant
    Filed: December 30, 1977
    Date of Patent: August 26, 1980
    Assignee: Olympus Optical Co., Ltd.
    Inventor: Hachioji Okada