Patents by Inventor Daisuke Tsuru

Daisuke Tsuru 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).

  • Anti-amnestic agent
    Patent number: 4687778
    Abstract: An anti-amnestic agent which comprises as an active ingredient thereof at least one prolinal derivative of the general formula: ##STR1## wherein A is a protective groups for amino group in the field of amino acid chemistry and X is a residue of an amino acid, in a pharmacologically active amount together with an exipient. This agent is less toxic and can be safely administered to patients orally or intravenously for the remedy of memory disorder.
    Type: Grant
    Filed: March 8, 1985
    Date of Patent: August 18, 1987
    Assignee: Kabushiki Kaisha Yakult Honsha
    Inventors: Daisuke Tsuru, Tadashi Yoshimoto, Hisao Hagiwara, Kunio Kado