Patents by Inventor Takeshi Ootsu

Takeshi Ootsu 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).

  • Apparatus for heat-treating toner and method for producing toner
    Patent number: 8653159
    Abstract: An apparatus for heat-treating a toner includes a raw-material supply unit configured to supply a toner treatment space with a raw-material toner, a hot-air supply unit configured to heat-treat the raw-material toner in the toner treatment space, a suction and ejection unit configured to eject hot air used for the heat treatment of the raw-material toner, and a waste-heat recovery and supply unit configured to recover heat from the hot air ejected by the suction and ejection unit and supply the hot-air supply unit with the recovered heat.
    Type: Grant
    Filed: March 2, 2012
    Date of Patent: February 18, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hironori Minagawa, Yuichi Mizo, Takeshi Ootsu, Junichi Hagiwara, Daisuke Ito, Kunihiko Kawakita, Yasushi Tamura
  • APPARATUS FOR HEAT-TREATING TONER AND METHOD FOR PRODUCING TONER
    Publication number: 20120231382
    Abstract: An apparatus for heat-treating a toner includes a raw-material supply unit configured to supply a toner treatment space with a raw-material toner, a hot-air supply unit configured to heat-treat the raw-material toner in the toner treatment space, a suction and ejection unit configured to eject hot air used for the heat treatment of the raw-material toner, and a waste-heat recovery and supply unit configured to recover heat from the hot air ejected by the suction and ejection unit and supply the hot-air supply unit with the recovered heat.
    Type: Application
    Filed: March 2, 2012
    Publication date: September 13, 2012
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Hironori Minagawa, Yuichi Mizo, Takeshi Ootsu, Junichi Hagiwara, Daisuke Ito, Kunihiko Kawakita, Yasushi Tamura
  • Toner and image forming method
    Patent number: 7611813
    Abstract: Provided a toner including at least: toner particles each containing at least a binder resin, a release agent, and a colorant; and an inorganic fine powder, in which: a degree of aggregation Y1 at a time of compression (200 kpa) of the toner satisfies a relationship of 15?Y1?35, and a degree of aggregation Y2 at a time of non-compression of the toner satisfies a relationship of 7?Y2?15; and a highest endothermic peak of the toner is present in a temperature range of 30 to 200° C. in an endothermic curve measured with a differential scanning calorimeter (DSC), and a peak temperature Tsc (° C.) of the highest endothermic peak satisfies a relationship of 60?Tsc?130.
    Type: Grant
    Filed: January 30, 2007
    Date of Patent: November 3, 2009
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tetsuya Ida, Takeshi Ootsu, Koh Ishigami, Naoki Okamoto, Nozomu Komatsu, Noriyoshi Umeda, Yoshinobu Baba, Takayuki Itakura, Takeshi Naka, Hirohide Tanikawa
  • TONER AND IMAGE FORMING METHOD
    Publication number: 20070122727
    Abstract: Provided a toner including at least: toner particles each containing at least a binder resin, a release agent, and a colorant; and an inorganic fine powder, in which: a degree of aggregation Y1 at a time of compression (200 kpa) of the toner satisfies a relationship of 15?Y1?35, and a degree of aggregation Y2 at a time of non-compression of the toner satisfies a relationship of 7?Y2?15; and a highest endothermic peak of the toner is present in a temperature range of 30 to 200° C. in an endothermic curve measured with a differential scanning calorimeter (DSC), and a peak temperature Tsc (° C.) of the highest endothermic peak satisfies a relationship of 60?Tsc?130.
    Type: Application
    Filed: January 30, 2007
    Publication date: May 31, 2007
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Tetsuya Ida, Takeshi Ootsu, Koh Ishigami, Naoki Okamoto, Nozomu Komatsu, Noriyoshi Umeda, Yoshinobu Baba, Takayuki Itakura, Takeshi Naka, Hirohide Tanikawa