Patents by Inventor Tetsuo Onami

Tetsuo Onami 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).

  • Method of producing oxo-containing azetidinone compounds
    Patent number: 4369312
    Abstract: This invention relates to a novel method of producing oxo-containing azetidinone compounds, or salts thereof, or hydrates thereof, said compounds having utility as antimicrobial agents and as intermediates for the synthesis of other azetidinone compounds having antimicrobial activity.
    Type: Grant
    Filed: July 1, 1981
    Date of Patent: January 18, 1983
    Assignee: Fujisawa Pharmaceutical Co., Ltd.
    Inventors: Masashi Hashimoto, Matsuhiko Aratani, Daijiro Hagiwara, Kozo Sawada, Tetsuo Onami