Patents by Inventor Kohei Manabe

Kohei Manabe 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: 20230384701
    Abstract: An electrostatic charge image developing toner contains toner particles that contain an organic colorant and a binder resin, in which the organic colorant includes a non-fluorescent organic pigment and a fluorescent organic pigment, a total content of the organic colorant is 5% by mass or more and 20% by mass or less with respect to a total mass of the toner particles, and a specific gravity D1 of the non-fluorescent organic pigment and a specific gravity D2 of the fluorescent organic pigment satisfy both of Formulas (1) and (2). D1?2.0??Formula (1) D1?D2?0.6??Formula (2).
    Type: Application
    Filed: January 16, 2023
    Publication date: November 30, 2023
    Applicant: FUJIFILM Business Innovation Corp.
    Inventors: Kohei MANABE, Yukiaki NAKAMURA, Takahisa TATEKAWA
  • Publication number: 20230384700
    Abstract: A fluorescent green toner contains toner particles containing a binder resin, a release agent, a fluorescent pigment having a hydrophilic group, and a pigment having a halogen atom.
    Type: Application
    Filed: January 13, 2023
    Publication date: November 30, 2023
    Applicant: FUJIFILM Business Innovation Corp.
    Inventors: Takahisa TATEKAWA, Yukiaki NAKAMURA, Kohei MANABE
  • Publication number: 20230384699
    Abstract: An electrostatic charge image developing green toner contains green toner particles containing a binder resin, an azomethine fluorescent pigment having an emission peak in a wavelength region of 500 nm or more and 550 nm or less in an emission spectrum, and a non-fluorescent pigment having a reflection peak in a wavelength region of 480 nm or more and 540 nm or less in a reflection spectrum, in which a mass-based ratio M2/M1 of a content M2 of the non-fluorescent pigment to a content M1 of the azomethine fluorescent pigment is 0.05 or more and 1.5 or less, and a total content of the azomethine fluorescent pigment and the non-fluorescent pigment with respect to a total amount of the green toner particles is 5% by mass or more and 15% by mass or less.
    Type: Application
    Filed: January 13, 2023
    Publication date: November 30, 2023
    Applicant: FUJIFILM Business Innovation Corp.
    Inventors: Yukiaki NAKAMURA, Takahisa Tatekawa, Kohei Manabe