Patents by Inventor Hisanobu Ajima

Hisanobu Ajima 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).

  • Publication number: 20100254720
    Abstract: There is provided an image forming apparatus in which a correction value is acquired from a storage device provided in a coloring agent cartridge mounted in the image forming apparatus, it is determined whether the acquired correction value is within a specified numerical range, and when it is determined that the acquired correction value is not within the specified numerical range, a control parameter of a specified process relevant to an image forming operation is corrected based on a specified correction value previously set to correct the control parameter of the specified process performed by the image forming apparatus.
    Type: Application
    Filed: April 1, 2010
    Publication date: October 7, 2010
    Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHA
    Inventor: Hisanobu AJIMA
  • Publication number: 20090245876
    Abstract: According to an embodiment of the invention, an electrophotographic toner contains 100 parts by weight of a toner resin, from 0.01 to 10 parts by weight of a cyclodextrin compound, first silica having an average particle diameter of from 20 to 40 nm, and second silica having an average particle diameter of from 8 to 14 nm.
    Type: Application
    Filed: March 26, 2009
    Publication date: October 1, 2009
    Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHA
    Inventors: Nobuo Tohata, Hisanobu Ajima
  • Publication number: 20090110417
    Abstract: An image forming apparatus mounted with a toner cartridge having a memory unit includes a toner cartridge which stores a plurality of control data depending on toner in the memory unit, an acquisition unit which selects one of the plurality of control data in the memory unit and acquires image formation-related information and a setting unit which sets image formation parameters on the basis of the image formation-related information.
    Type: Application
    Filed: October 23, 2008
    Publication date: April 30, 2009
    Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHA
    Inventors: Toru Homma, Hiroshi Hashidume, Hisanobu Ajima, Nobuo Tohata, Takahiro Nakajima, Takumi Hatano
  • Patent number: 6153347
    Abstract: A wax dispersion in a developing agent using a polyester resin is improved by adding an ester wax in the polyester polymerizing step or both in the polymerizing and kneading steps, or by adding a compatibilizing agent selected from the group consisting of alkylene block copolymer or graft copolymer to a polyester-styrene hybrid resin used in place of the polyester resin.
    Type: Grant
    Filed: April 13, 1999
    Date of Patent: November 28, 2000
    Assignees: Toshiba TEC Kabushiki Kaisha, Kabushiki Kaisha Toshiba
    Inventors: Takahito Kabai, Yuuko Takano, Yasuo Goto, Toshiaki Yamauchi, Yukihiro Fujikura, Hisanobu Ajima, Yoshihito Shimada, Hiroshi Ohno