Patents by Inventor Yuichi Gyotoku

Yuichi Gyotoku 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).

  • Patent number: 5229400
    Abstract: A piperidine derivative of general formula (I) or a pharmaceutically acceptable salt thereof: ##STR1## wherein ##STR2## is any of several specified aromatic-containing groups; X is selected from one of several hetero atom-containing groups or C.sub.
    Type: Grant
    Filed: October 4, 1991
    Date of Patent: July 20, 1993
    Assignee: Ajinomoto Co., Inc.
    Inventors: Akira Hirasawa, Masataka Shoji, Ryota Yoshimoto, Yuichi Gyotoku, Chikahiko Eguchi