Patents Assigned to OTSUKA CHECMIAL CO., LTD.
  • Crystal of cyclic phosphonic acid sodium salt and method for manufacturing same
    Patent number: 10774100
    Abstract: An object t of the present invention is to proroaide crystal of a cyclic phosphonic acid sodium salt (2ccPA) with high purity and excellent storage stability and a method for producing the crystal.
    Type: Grant
    Filed: July 2, 2019
    Date of Patent: September 15, 2020
    Assignees: OTSUKA CHECMIAL CO., LTD., SANSHO CO., LTD.
    Inventors: Hiroaki Yuasa, Hiroki Okazaki