Patents by Inventor Shizuka Fujii

Shizuka Fujii 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).

  • Anthracycline antibiotics
    Patent number: 4612371
    Abstract: Novel anthracycline antibiotics characteristic of Ring A of the anthracycline skeleton are produced by microorganisms belonging to the genus Streptomyces and are useful as anti-cancer agents.
    Type: Grant
    Filed: July 18, 1985
    Date of Patent: September 16, 1986
    Assignee: Sanraku Incorporated
    Inventors: Akihiro Yoshimoto, Shizuka Fujii, Katsuro Kubo, Tomoyuki Ishikura, Tsutomu Sawa, Tomio Takeuchi, Hamao Umezawa