Patents by Inventor Kyoji Aoki

Kyoji Aoki 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 producing oxiracetam
    Patent number: 4686296
    Abstract: A process for producing oxiracetam (4-hydroxy-2-oxo-1-pyrrolidineacetamide) useful as an agent for improving brain metabolism, under mild conditions and in a single process is provided, this process comprises reacting glycinamide with a butyric acid ester expressed by the formula ##STR1## wherein A represents a halogen atom or an epoxy group, B represents hydroxyl group, but when A is an epoxy group, A and B together form an epoxy group, and R represents an alkyl group.
    Type: Grant
    Filed: July 22, 1986
    Date of Patent: August 11, 1987
    Assignee: Denki Kagaku Kogyo Kabushiki Kaisha
    Inventors: Shinobu Iriuchijima, Hirohiko Kobayashi, Kyoji Aoki, Takeshi Oda, Masayuki Shinoyama, Yoshifumi Nosaka