Patents by Inventor Akitaka MITSUJI

Akitaka MITSUJI 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: 20220373910
    Abstract: A resin binder composition for toners, containing a polyester resin A having a constituting unit derived from an alcohol component containing an alkylene oxide adduct of bisphenol A and a constituting unit derived from a carboxylic acid component containing an amorphous acid modified product A of an ?-olefin polymer having 4 or more carbon atoms and 18 or less carbon atoms; a resin binder composition for toners containing a polyester resin A which is a polycondensate of an alcohol component containing an alkylene oxide adduct of bisphenol A and a carboxylic acid component containing an amorphous acid modified product A of an ?-olefin polymer having 4 or more carbon atoms and 18 or less carbon atoms; and a toner for electrostatic image development, containing these resin binder composition for toners.
    Type: Application
    Filed: April 30, 2020
    Publication date: November 24, 2022
    Applicant: Kao Corporation
    Inventors: Kota IJICHI, Kunihiro KANO, Nobumichi KAMIYOSHI, Akitaka MITSUJI
  • Publication number: 20220229378
    Abstract: A method for producing a liquid developer containing a resin binder, a colorant, and an insulating liquid, the resin binder containing a polyester resin A comprising a constituting unit derived from an alcohol component and a constituting unit derived from a carboxylic acid component containing an acid modified product A of an ?-olefin polymer having 3 or more carbon atoms and 18 or less carbon atoms, including: step I: stirring raw materials containing the resin binder and the colorant or raw materials containing the resin binder, the colorant, and a part of the insulating liquid at a temperature of equal to or higher than a glass transition temperature of the resin binder; and step II: adding dropwise the insulating liquid to a stirred mixture of the step I in an amount to make a total of the amounts used in the step I and the step II of 50 parts by mass or more and 500 parts by mass or less, based on 100 parts by mass of a total amount of the resin binder and the colorant at a temperature of equal to or hi
    Type: Application
    Filed: April 14, 2020
    Publication date: July 21, 2022
    Applicant: Kao Corporation
    Inventors: Nobuaki OKAUCHI, Akitaka MITSUJI