Patents by Inventor Setsuo Oikawa

Setsuo Oikawa 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).

  • Process for the production of penicillanic acid compounds
    Patent number: 4942229
    Abstract: An improved process for the production of penicillic acid compounds, especially chloromethyl ester of penicillin G, penicillin V or sulbactam is disclosed.
    Type: Grant
    Filed: February 13, 1989
    Date of Patent: July 17, 1990
    Assignee: Yoshitomi Pharmaceutical Industries, Ltd.
    Inventors: Kazumi Saeki, Masami Hirano, Kunihide Oka, Kazuto Tsukinuki, Setsuo Oikawa