Patents by Inventor Takemasa Kojima

Takemasa Kojima 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).

  • Method for a specific depolymerization of a polysaccharide having a rod-like helical conformation
    Patent number: 4505757
    Abstract: The description describes a process for depolymerization of a polysaccharide having a rod-like helical structure, comprising a step for forcing a solution of the polysaccharide in a solvent (solvent A) through a capillary at a high shear rate, to produce a lower molecular weight degraded polysaccharide, which has the same repeating unit and the same helical structure, as those of the original polysaccharide.
    Type: Grant
    Filed: January 24, 1983
    Date of Patent: March 19, 1985
    Assignees: Kaken Pharmaceutical Co. Ltd., Taito Co., Ltd.
    Inventors: Takemasa Kojima, Kengo Tabata, Toshio Yanaki, Mitsuaki Mitani