Patents by Inventor Yasuhide Goseki

Yasuhide Goseki 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).

  • Encapsulated electrostatic toner with locally attached non-magnetic inorganic particles
    Patent number: 4740443
    Abstract: An encapsulated toner for development of electrical latent images comprises a core particle containing a colorant and a soft solid material, inorganic fine particles attached to the vicinity of the surface of the core particle, and a shell coating the core particle and the inorganic fine particles. The inorganic fine particles function to, e.g., reinforce the encapsulated toner with a thin shell and may be attached to the core particles through dry-mixing. The core particles with the attached inorganic particles may be coated with a shell resin through phase separation.
    Type: Grant
    Filed: August 20, 1987
    Date of Patent: April 26, 1988
    Assignee: Canon Kabushiki Kaisha
    Inventors: Toshiaki Nakahara, Junichi Kurimoto, Yasuhide Goseki, Toshiyuki Koshio, Hisayuki Ochi, Hisayuki Ushiyama, Toru Matsumoto, Ichiro Ohsaki, Katsutoshi Wakamiya, Masuo Yamazaki