Patents by Inventor Yukihito MASUI

Yukihito MASUI 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).

  • SLUDGE DEHYDRATING AGENT AND SLUDGE DEHYDRATING METHOD
    Publication number: 20230020603
    Abstract: A sludge dehydrating agent comprising a cationic polymer which has: a constitutional unit a derived from a quaternary ammonium salt having a specific structure; and at least one constitutional unit selected from among a constitutional unit b derived from a quaternary ammonium salt having a specific structure and a constitutional unit c derived from a tertiary amine salt having a specific structure, wherein the intrinsic viscosity of the cationic polymer at 30° C. in a 1 mol/L sodium nitrate aqueous solution is 0.5-4.0 dL/g.
    Type: Application
    Filed: December 4, 2020
    Publication date: January 19, 2023
    Applicant: KURITA WATER INDUSTRIES LTD.
    Inventors: Ayako SAKAMOTO, Shigeru SATO, Kazuya WATANABE, Yukihito MASUI