Patents by Inventor Hatsumi Nishibayashi

Hatsumi Nishibayashi 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).

  • Electrophotographic process of developing and transfering images uses fluorine containing offset preventing agent in developer
    Patent number: 4388396
    Abstract: A developer for electrostatic images consisting essentially of particles comprising a pigment, a binder and an offset-preventing agent selected from the group consisting of aliphatic fluorocarbon compounds and fluorochlorocarbon compounds is disclosed. When this developer is used, a high offset-preventing effect can be attained at the fixing step even if the amount incorporated of the offset-preventing agent is small, and further, the developing operation can be performed in good conditions. By incorporation of this offset-preventing agent, the flowability of particles of the developer and charge characteristics of the developer can be remarkably improved.
    Type: Grant
    Filed: April 15, 1982
    Date of Patent: June 14, 1983
    Assignee: Mita Industrial Company Limited
    Inventors: Hatsumi Nishibayashi, Yoshimi Amagai, Norio Hikake, Toshihiro Kouchi, Tatsuo Aizawa