Patents by Inventor Yoshinaga Mitsuhashi

Yoshinaga Mitsuhashi 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).

  • Developer reservoir
    Patent number: 4895104
    Abstract: A developer reservoir in which a flexible seal member is separably bonded to the circumferential surface of an opening in a bottom portion of a reservoir body containing a developer for sealing the same opening. A portion extended from the bonded flexible seal member is spot-bonded on a plurality of portions of the bottom portion of the reservoir body so that when a considerably large pulling out force is applied to the seal member the seal member is separated first from the spot-bonded portions of the bottom portion of the reservoir body and then from the circumferential surface of the opening of the reservoir body. A sliding cover is also included below the seal member so that the sliding cover can be drawn in a right angle direction to the separating direction of the seal member.
    Type: Grant
    Filed: July 1, 1988
    Date of Patent: January 23, 1990
    Assignee: Konica Corporation
    Inventors: Masahiro Yoshino, Keisuke Yamaguchi, Yoshinaga Mitsuhashi, Susumu Owada