Patents by Inventor Sinya Tokitou

Sinya Tokitou 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).

  • Developer quantity control blade having blade member composed of a thermoplastic elastomer composition and image forming apparatus
    Patent number: 9411262
    Abstract: A developer quantity control blade is provided which can sufficiently impart charge to toner and which allows bleeding of a material from a blade member to be suppressed even in application of a voltage. The developer quantity control blade includes a supporting member and a blade member, wherein the blade member is composed of a thermoplastic elastomer composition including a block copolymer having a polyamide structure and a polyether structure, and an ion conductive agent; in the blade member, a quantity of an extraction component to be extracted with methyl isobutyl ketone as a solvent is 0.5% by mass or more and 2.4% by mass or less; and a quantity of a molecule having a molecular weight of 5000 or less in the extraction component is 70% by mass or more.
    Type: Grant
    Filed: January 20, 2016
    Date of Patent: August 9, 2016
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Mitsuru Okuda, Yoshinobu Ogawa, Hiroshi Morishita, Sinya Tokitou
  • DEVELOPER QUANTITY CONTROL BLADE HAVING BLADE MEMBER COMPOSED OF A THERMOPLASTIC ELASTOMER COMPOSITION AND IMAGE FORMING APPARATUS
    Publication number: 20160223939
    Abstract: A developer quantity control blade is provided which can sufficiently impart charge to toner and which allows bleeding of a material from a blade member to be suppressed even in application of a voltage. The developer quantity control blade includes a supporting member and a blade member, wherein the blade member is composed of a thermoplastic elastomer composition including a block copolymer having a polyamide structure and a polyether structure, and an ion conductive agent; in the blade member, a quantity of an extraction component to be extracted with methyl isobutyl ketone as a solvent is 0.5% by mass or more and 2.4% by mass or less; and a quantity of a molecule having a molecular weight of 5000 or less in the extraction component is 70% by mass or more.
    Type: Application
    Filed: January 20, 2016
    Publication date: August 4, 2016
    Inventors: Mitsuru Okuda, Yoshinobu Ogawa, Hiroshi Morishita, Sinya Tokitou