Patents by Inventor Furuya Nobumasa

Furuya Nobumasa 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 image recording method
    Patent number: 4882247
    Abstract: Image recording method of the present invention comprises the steps of forming electrostatic latent image on a latent image carrier by a latent image forming means, developing the formed electrostatic latent image with toner, and transferring the visualized toner image to a transfer material after repeating at least the developing step plural times, wherein double-element developer formed from mixing toner and magnetic carrier with its density of 4.0 g/cm.sup.3 or less is used in at least the second and the succeeding developing steps among the plural times of the developing steps.
    Type: Grant
    Filed: November 17, 1987
    Date of Patent: November 21, 1989
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Kazuo Marugama, Kiyoshi Horie, Tsuneo Noami, Toshiro Yamamoto, Koji Adachi, Toru Okamoto, Takeshi Sumikawa, Furuya Nobumasa