Patents by Inventor Rina SHISHIDO

Rina SHISHIDO 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: 20240141591
    Abstract: Provided are: a sheet which has high transparency, in which yellowing due to heating is suppressed, and which has high tensile elastic modulus and excellent flexibility; and a layered body having the sheet. The sheet of the present invention contains ultrafine fibrous cellulose having a fiber width of 10 nm or less, and a cellulose derivative having a weight-average molecular weight of 1.0×104 or more and 3.0×105 or less.
    Type: Application
    Filed: February 3, 2022
    Publication date: May 2, 2024
    Applicant: OJI HOLDINGS CORPORATION
    Inventors: Rina SHISHIDO, Yuichi NOGUCHI, Hirokazu SUNAGAWA
  • Publication number: 20230203755
    Abstract: It is an object of the present invention to provide fine fibrous cellulose capable of enhancing transparency and suppressing coloring, when the fine fibrous cellulose are processed into a dispersed solution or a sheet. The present invention relates to fine fibrous cellulose, in which the amount of substituents introduced is less than 0.5 mmol/g and the fiber width is 1 to 10 nm. Moreover, the present invention relates to a dispersed solution and a sheet, each of which comprises fine fibrous cellulose. Furthermore, the present invention relates to a method for producing fine fibrous cellulose, comprising: (A) removing at least a part of substituents from fine fibrous cellulose with a fiber width of 1000 nm or less having the substituents, and (B) performing a uniform dispersion treatment on the resulting fine fibrous cellulose after completion of the (A).
    Type: Application
    Filed: May 19, 2021
    Publication date: June 29, 2023
    Applicant: OJI HOLDINGS CORPORATION
    Inventors: Ikue SUGIYAMA, Yusuke MATSUBARA, Rina SHISHIDO, Hayato FUSHIMI, Yoshiharu NISHIKORI