Patents by Inventor Mika Nozawa

Mika Nozawa 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).

  • Bioxanthracene derivatives
    Patent number: 5081264
    Abstract: A compound of formula (I): ##STR1## wherein R.sub.1 represents hydrogen, hydroxy or acetoxy and R.sub.2 represents hydroxy or acetoxy.The compounds are capable of protecting the nerve cells and also antagonistic activity against N-methyl-D-aspartic acid receptors.They may be prepared by fermentation of a microorganism of the genus Verticillium or a mutant thereof.
    Type: Grant
    Filed: September 18, 1990
    Date of Patent: January 14, 1992
    Assignee: Kyowa Hakko Kabushiki Kaisha
    Inventors: Shinichiro Toki, Mika Nozawa, Mayumi Yoshida, Hiroshi Sano, Katsuhiko Ando, Isao Kawamoto, Yuzuru Matsuda, Junichi Ikeda, Kazuhiro Kubo