Patents by Inventor Mayuko Uda

Mayuko Uda 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, developer for developing electrostatic latent image, and process for producing toner for developing electrostatic latent image
    Patent number: 7432030
    Abstract: A toner for developing an electrostatic latent image includes a binder resin, a colorant and a releasing agent. The releasing agent contains a hydrocarbon component including a linear hydrocarbon component, and the liner hydrocarbon component has a carbon number distribution and an average carbon number N. An amount of a component having a carbon number of from N?4 to N+4 in the releasing agent is 80% by mass or more based on the total mass of the hydrocarbon component of the releasing agent. An amount of a component having a carbon number of N?10 or less in the releasing agent is 0.05% by mass or less based on the total mass of the hydrocarbon component of the releasing agent, and an amount of a component having a carbon number of N+10 or more in the releasing agent is 0.05% by mass or less based on the total mass of the hydrocarbon component of the releasing agent.
    Type: Grant
    Filed: March 15, 2005
    Date of Patent: October 7, 2008
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Yosuke Tsurumi, Akira Matsumoto, Mayuko Uda, Hiroshi Nakazawa, Kazufumi Tomita
  • Toner for developing electrostatic latent image, developer for developing electrostatic latent image, and process for producing toner for developing electrostatic latent image
    Publication number: 20060057484
    Abstract: A toner for developing an electrostatic latent image includes a binder resin, a colorant and a releasing agent. The releasing agent contains a hydrocarbon component including a linear hydrocarbon component, and the liner hydrocarbon component has a carbon number distribution and an average carbon number N. An amount of a component having a carbon number of from N?4 to N+4 in the releasing agent is 80% by mass or more based on the total mass of the hydrocarbon component of the releasing agent. An amount of a component having a carbon number of N?10 or less in the releasing agent is 0.05% by mass or less based on the total mass of the hydrocarbon component of the releasing agent, and an amount of a component having a carbon number of N+10 or more in the releasing agent is 0.05% by mass or less based on the total mass of the hydrocarbon component of the releasing agent.
    Type: Application
    Filed: March 15, 2005
    Publication date: March 16, 2006
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Yosuke Tsurumi, Akira Matsumoto, Mayuko Uda, Hiroshi Nakazawa, Kazufumi Tomita