Patents Assigned to Furukawa Keiichiro
  • SPF-100 and process for the preparation thereof
    Patent number: 4656037
    Abstract: Penicillin or related substances are added during the course of the cultivation of a streptococcus to recover SPF-100 from the culture broth. SPF-100 exhibits a broad range of molecular weight and may be classified into SPF-1 and SPF-2.SPF-100 has a direct cancericidal effect and an immunoactivation effect.
    Type: Grant
    Filed: June 19, 1985
    Date of Patent: April 7, 1987
    Assignees: Udaka, Shigezo, Furukawa Keiichiro, Shikibo Ltd.
    Inventors: Shigezo Udaka, Hideo Ueyama, Junichi Taniguchi, Keiji Adachi