Patents by Inventor Misaki NARITA

Misaki NARITA 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).

  • Aqueous pigment dispersion liquid
    Patent number: 11746247
    Abstract: The present invention provides an aqueous pigment dispersion liquid being such that a pigment is finely dispersed, and the viscosity, and the particle diameters of the pigment are unlikely to fluctuate, being excellent in storage stability, and enabling preparation of an emulsion-polymerized toner having properly controlled particle diameters while improving the pigment utilization rate. The aqueous pigment dispersion liquid is an aqueous pigment dispersion liquid for an emulsion-polymerized toner containing a pigment, a dispersant, and an aqueous medium.
    Type: Grant
    Filed: March 17, 2020
    Date of Patent: September 5, 2023
    Assignee: DAINICHISEIKA COLOR & CHEMICALS MFG. CO., LTD.
    Inventors: Yosuke Sakai, Misaki Narita, Yasuhiro Yoshida, Shinichiro Aoyagi, Yoshikazu Murakami, Hiroyuki Shimanaka
  • AQUEOUS PIGMENT DISPERSION LIQUID
    Publication number: 20220127485
    Abstract: The present invention provides an aqueous pigment dispersion liquid being such that a pigment is finely dispersed, and the viscosity, and the particle diameters of the pigment are unlikely to fluctuate, being excellent in storage stability, and enabling preparation of an emulsion-polymerized toner having properly controlled particle diameters while improving the pigment utilization rate. The aqueous pigment dispersion liquid is an aqueous pigment dispersion liquid for an emulsion-polymerized toner containing a pigment, a dispersant, and an aqueous medium.
    Type: Application
    Filed: March 17, 2020
    Publication date: April 28, 2022
    Inventors: Yosuke SAKAI, Misaki NARITA, Yasuhiro YOSHIDA, Shinichiro AOYAGI, Yoshikazu MURAKAMI, Hiroyuki SHIMANAKA