Patents by Inventor Keiko Shitoh

Keiko Shitoh 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).

  • Cardiotonic agents
    Patent number: 4418070
    Abstract: A 5-phenylthiazole derivative represented by the formula: ##STR1## wherein R represents a hydrogen atom, a lower alkyl group, a hydroxyl group, an amino group or a mercapto group, or a pharmaceutically acceptable salt thereof shows a cardiac effect and a low toxicity to a human or animal with little influence on atrium rhythms.
    Type: Grant
    Filed: February 4, 1982
    Date of Patent: November 29, 1983
    Assignee: Meiji Seika Kabushiki Kaisha
    Inventors: Tsuneo Okonogi, Shunzo Fukatsu, Mitsugu Hachisu, Hiroko Kawashima, Keiko Shitoh, Yasuharu Sekizawa