Patents Assigned to Director Genereal of Agency of Industrial Science & Technology
  • Catalyst membrane
    Patent number: 4420612
    Abstract: A catalyst membrane including a porous polytetrafluoroethylene membrane having grafted thereon polystyrenesulfonic acid. The catalyst membrane is useful for hydrolyzing water soluble organic substances such as polysaccharides.
    Type: Grant
    Filed: February 28, 1983
    Date of Patent: December 13, 1983
    Assignee: Director Genereal of Agency of Industrial Science & Technology
    Inventors: Seiichi Aiba, Kazuhisa Hiratani, Tsutomu Nakagawa