Patents by Inventor Teigen Ri

Teigen Ri 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).

  • Toner for developing electrostatic latent image, method for manufacturing toner, and developer for developing electrostatic latent image
    Patent number: 7348119
    Abstract: The present invention provides a toner for developing an electrostatic latent image including: toner mother particles containing a binder resin and a colorant; and manganese compound particles having a ?-type crystalline structure, the production method thereof, and a developer containing the toner.
    Type: Grant
    Filed: June 28, 2005
    Date of Patent: March 25, 2008
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Tetsu Torigoe, Noriyoshi Takahashi, Teruo Sakai, legal representative, Emi Takahashi, Teigen Ri, Sueko Sakai
  • Toner for developing electrostatic latent image, method for manufacturing toner, and developer for developing electrostatic latent image
    Publication number: 20060210901
    Abstract: The present invention provides a toner for developing an electrostatic latent image including: toner mother particles containing a binder resin and a colorant; and manganese compound particles having a ?-type crystalline structure, the production method thereof, and a developer containing the toner.
    Type: Application
    Filed: June 28, 2005
    Publication date: September 21, 2006
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Tetsu Torigoe, Noriyoshi Takahashi, Sueko Sakai, Teruo Sakai, Emi Takahashi, Teigen Ri
  • Toner for development of electrostatic latent image, electrostatic latent image developer, and method for formation of image
    Publication number: 20060115757
    Abstract: A toner for development of an electrostatic latent image, comprises: a binder resin; a colorant; and a release agent, wherein the binder resin has a weight average molecular weight of 20,000 to 40,000, and when a carbon content and a sulfur content of the toner measured using X-ray fluorescence are represented by [C] % and [S] %, respectively, [S]/[C] satisfies expression (1): 0.0002?[S]/[C]?0.0030 ??(1).
    Type: Application
    Filed: May 26, 2005
    Publication date: June 1, 2006
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Emi Takahashi, Noriyoshi Takahashi, Sueko Sakai, Teruo Sakai, Tetsu Torigoe, Teigen Ri