Patents by Inventor Yasuyuki Yokovama

Yasuyuki Yokovama 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).

  • Photosensitive paper conveying device of a copying machine
    Patent number: 4681313
    Abstract: A moving original exposure type of copying machine comprising, an original carrier reciprocatively moving on a machine body, a group of rollers conveying a photosensitive paper synchronously with the reciprocal movement of the original carrier, an image-forming station forming an image on a photosensitive paper, the group of photosensitive paper conveying rollers including a first pair of rollers located apart from and upstream of the image-forming station, holding therebetween and conveying a photosensitive paper, and including a second and a third pairs of rollers positioned adjacent to and upstream and downstream of the image-forming station, holding therebetween and conveying a photosensitive paper, the first rollers being provided with release means whereby a photosensitive paper held by the first rollers is released when the paper passes the image-forming station.
    Type: Grant
    Filed: November 15, 1985
    Date of Patent: July 21, 1987
    Assignee: Iwatsu Electric Co., Ltd.
    Inventors: Yasuyuki Yokovama, Kiyoaki Nakamura, Hiroshi Goi, Koichiro Fujioka