Patents by Inventor Yuzo Kaneko

Yuzo Kaneko 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).

  • Toners for electrostatic-image development, cartridge employing toner for electrostatic-image development, and image-forming apparatus
    Patent number: 8871413
    Abstract: An object of the invention is to provide a toner which is effective in improving image quality while inhibiting white-background fouling, residual-image phenomenon (ghost), blurring (suitability for solid printing), and the like that occur depending on the proportion of a fine powder having a particle diameter not larger than a specific value, and which has satisfactory removability in cleaning, mitigates problems concerning fouling, etc. in long-term use even on a high-speed printer, and attains excellent image stability. Another object is to provide an image-forming apparatus and a toner cartridge each employing the toner. The invention provides a toner for electrostatic-image development satisfying all of the following (1) to (4) or a toner for electrostatic-image development which is a toner containing a charge control agent and satisfying all of the following (5) to (7). The invention further provides an image-forming apparatus and a toner cartridge each employing the toner.
    Type: Grant
    Filed: September 19, 2008
    Date of Patent: October 28, 2014
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Yuzo Kaneko, Masaya Oota, Shiho Sano, Masakazu Sugihara, Teruki Senokuchi, Shiro Yasutomi, Takeshi Owada, Yumi Hirabaru, Takuya Nishikiori, Teruyuki Mitsumori, Kozo Ishio, Hiroaki Takamura
  • TONERS FOR ELECTROSTATIC-IMAGE DEVELOPMENT, CARTRIDGE EMPLOYING TONER FOR ELECTROSTATIC-IMAGE DEVELOPMENT, AND IMAGE-FORMING APPARATUS
    Publication number: 20110038650
    Abstract: An object of the invention is to provide a toner which is effective in improving image quality while inhibiting white-background fouling, residual-image phenomenon (ghost), blurring (suitability for solid printing), and the like that occur depending on the proportion of a fine powder having a particle diameter not larger than a specific value, and which has satisfactory removability in cleaning, mitigates problems concerning fouling, etc. in long-term use even on a high-speed printer, and attains excellent image stability. Another object is to provide an image-forming apparatus and a toner cartridge each employing the toner. The invention provides a toner for electrostatic-image development satisfying all of the following (1) to (4) or a toner for electrostatic-image development which is a toner containing a charge control agent and satisfying all of the following (5) to (7). The invention further provides an image-forming apparatus and a toner cartridge each employing the toner.
    Type: Application
    Filed: September 19, 2008
    Publication date: February 17, 2011
    Applicant: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Yuzo Kaneko, Masaya Oota, Shiho Sano, Masakazu Sugihara, Teruki Senokuchi, Shiro Yasutomi, Takeshi Owada, Yumi Hirabaru, Takuya Nishikiori, Teruyuki Mitsumori, Kozo Ishio, Hiroaki Takamura