Patents by Inventor Masaki Nagaoka

Masaki Nagaoka 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).

  • Flash fixing color toner and process for producing the same
    Patent number: 5432035
    Abstract: A toner is disclosed wherein an aminium salt infrared light absorber and a positive charge control agent are used in combination while preventing a mutual reaction therebetween. In this toner, the physical contact of the aminium salt compound with the positive charge control agent is avoided (e.g., by separately adding them to respective two separated phases of a binder resin), or alternatively use is made of such a combination of compounds as will not cause a mutual reaction (e.g., a common anion is used).
    Type: Grant
    Filed: December 13, 1993
    Date of Patent: July 11, 1995
    Assignee: Fujitsu Limited
    Inventors: Yoshimichi Katagiri, Kazuyuki Kishimoto, Kazuhiko Kido, Yasufumi Nakamura, Hidenori Fujioka, Masahiro Nishihata, Kazuya Hamada, Masakazu Kinoshita, Hitoshi Kusaba, Ikuya Yamabata, Tetsuro Baba, Haruo Kuroda, Yuzo Horikoshi, Masaki Nagaoka, Yumi Fujisaki, Yuko Ohyama, Eiji Sakurai