Patents by Inventor Misaki TANIGUCHI

Misaki TANIGUCHI 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).

  • Water-absorbent resin particles
    Patent number: 11241669
    Abstract: Disclosed are water-absorbent resin particles comprising a crosslinked polymer comprising a monomer unit derived from a water-soluble ethylenically unsaturated monomer, wherein an initial swelling force as measured according to a swelling force test conducted by a predetermined method is 8 N or more, and further, a ratio of the particles having a particle diameter of more than 250 ?m and 850 ?m or less is 70% by mass or more and a ratio of the particles having a particle diameter of 250 ?m or less is 20% by mass or less, with respect to the total amount of the water-absorbent resin particles.
    Type: Grant
    Filed: March 28, 2018
    Date of Patent: February 8, 2022
    Assignee: SUMITOMO SEIKA CHEMICALS CO., LTD.
    Inventors: Hiroki Yabuguchi, Misaki Taniguchi, Hideki Yokoyama
  • WATER-ABSORBENT RESIN PARTICLES
    Publication number: 20200038837
    Abstract: Disclosed are water-absorbent resin particles comprising a crosslinked polymer comprising a monomer unit derived from a water-soluble ethylenically unsaturated monomer, wherein an initial swelling force as measured according to a swelling force test conducted by a predetermined method is 8 N or more, and further, a ratio of the particles having a particle diameter of more than 250 ?m and 850 ?m or less is 70% by mass or more and a ratio of the particles having a particle diameter of 250 ?m or less is 20% by mass or less, with respect to the total amount of the water-absorbent resin particles.
    Type: Application
    Filed: March 28, 2018
    Publication date: February 6, 2020
    Inventors: Hiroki YABUGUCHI, Misaki TANIGUCHI, Hideki YOKOYAMA