Patents by Inventor Shoichi Itaba

Shoichi Itaba 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).

  • CROSSLINKED POLYALLYLAMINE OR ACID ADDITION SALT THEREOF, AND USE THEREOF FOR MEDICAL PURPOSES
    Publication number: 20100189679
    Abstract: A cross-linked polyallylamine or an acid addition salt thereof has both high phosphate adsorption capability and low degree of swelling, and a medical use thereof. The cross-linked polyallylamine or an acid addition salt thereof is obtained by copolymerization of allylammonium dihydrogen phosphate with an acid addition salt of N,N?-diallyl-1,3-diaminopropane in an amount of 5 to 25 mol % with respect to the amount of the allylammonium dihydrogen phosphate, the cross-linked polyallylamine or an acid addition salt thereof having a phosphate adsorption capacity of 2.7 to 5.0 mmol/g; and a degree of swelling of 2.0 to 5.0. The cross-linked polyallylamine or an acid addition salt thereof is useful as a therapeutic or prophylactic agent for hyperphosphatemia.
    Type: Application
    Filed: July 10, 2008
    Publication date: July 29, 2010
    Applicant: TORAY INDUSTRIES, INC.
    Inventors: Atsushi Inoue, Kazuharu Suyama, Satoshi Minakami, Mitsuko Miyamoto, Shoichi Itaba