Patents by Inventor Kazuko Amano

Kazuko Amano 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).

  • Benzoxazole derivatives
    Patent number: 5631257
    Abstract: A benzoxazole derivative of the formula (1) or (2) which has an alicyclic diamine group at the 2-position: ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, X.sup.-, m and n are defined herein. The compound shows excellent 5-HT.sub.3 receptor antagonism and is useful as an antiemetic agent, a peristalsis controlling agent, an analgesic agent, an antianxiety agent and a schizophrenia treating agent.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: May 20, 1997
    Assignees: Meiji Seika Kaisha, Ltd., Koichi Shudo
    Inventors: Katsuyoshi Iwamatsu, Yasuo Sato, Masaaki Izumi, Fukio Konno, Seiji Shibahara, Shigeharu Inoye, Koichi Shudo, Kazuko Amano