Patents by Inventor Masatsugu Tabata

Masatsugu Tabata 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 decolorizing toner images and an image forming apparatus
    Patent number: 5572311
    Abstract: A sheet of paper, plastic or the like on which an image has been formed using a toner that is photochemically decolorizable by absorption of near infrared rays is illuminated with near infrared rays under the state wherein the image is heated to a temperature equal to or higher than the glass-transition temperature of a binding resin of the toner. The color of the toner can thereby be easily and rapidly eliminated. This enables the reuse of the sheet to be realized easily and at a low cost.
    Type: Grant
    Filed: September 9, 1994
    Date of Patent: November 5, 1996
    Assignees: Bando Chemical Industries, Ltd., Showa Denko Kabushiki Kaisha
    Inventors: Yuki Abe, Rikuzou Kouzuki, Masakazu Okamoto, Yasunori Mikata, Masatsugu Tabata, Shigeki Inoue, Sadao Tanimoto, Yoshihiro Uchimoto, Katsumi Murofushi, Yoshikazu Hosoda
  • Method and apparatus for decolorization, and image forming apparatus
    Patent number: 5405726
    Abstract: A sheet of paper, plastic or the like on which an image has been formed using a toner that is photochemically decolorizable by absorption of near infrared rays is illuminated with near infrared rays under the state wherein the image is heated to a temperature equal to or higher than the glass-transition temperature of a binding resin of the toner. The color of the toner can thereby be easily and rapidly eliminated. This enables the reuse of the sheet to be realized easily and at a low cost.
    Type: Grant
    Filed: November 10, 1992
    Date of Patent: April 11, 1995
    Assignees: Bando Chemical Industries. Ltd., Showa Denko Kabushiki Kaisha
    Inventors: Yuki Abe, Rikuzou Kouzuki, Masakazu Okamoto, Yasunori Mikata, Masatsugu Tabata, Shigeki Inoue, Sadao Tanimoto, Yoshihiro Uchimoto, Katsumi Murofushi, Yoshikazu Hosoda