Patents by Inventor Takahiko SHIMA

Takahiko SHIMA 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 FIBER, CELLULOSE ACETATE BAND, AND METHOD FOR PRODUCING CELLULOSE ACETATE BAND
    Publication number: 20210079561
    Abstract: An object is to mitigate clogging of spinneret holes which occurs as the passage of spinning time even though cellulose acetate has a small titanium oxide content or contains no titanium oxide and to prevent a reduction in pressure drop of a cellulose acetate band. A cellulose acetate fiber, in which a titanium oxide content is not greater than 0.05 wt. %, a calcium content is not greater than 20 ppm, and a magnesium content is not less than 30 ppm.
    Type: Application
    Filed: July 10, 2019
    Publication date: March 18, 2021
    Applicant: DAICEL CORPORATION
    Inventors: Takehiro MATSUMOTO, Hiroaki TAMAGAKI, Keita TAKAHASHI, Takahiko SHIMA