Patents by Inventor Takao KISHIMOTO

Takao KISHIMOTO 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).

  • CELLULOSE ACETATE AND METHOD FOR PRODUCING CELLULOSE ACETATE
    Publication number: 20220227891
    Abstract: The present invention is to provide a cellulose acetate that has a low total degree of acetyl substitution and a degree of acetyl substitution at 6-position that is lower compared to the degrees of acetyl substitution at 2-position and 3-position of a glucose ring, and has excellent water solubility. A cellulose acetate having: a total degree of acetyl substitution of 0.4 or greater and 0.9 or less, a proportion of a degree of acetyl substitution at 6-position in the total degree of acetyl substitution of 0% or greater and 18% or less, and a light transmittance at 660 nm of 5% or greater in 4 wt. % aqueous solution.
    Type: Application
    Filed: June 24, 2020
    Publication date: July 21, 2022
    Applicant: DAICEL CORPORATION
    Inventors: Shuuji YOSHIOKA, Toshikazu NAKAMURA, Shu SHIMAMOTO, Takao KISHIMOTO