Patents by Inventor Ono Hideki

Ono Hideki 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).

  • Treating complications of diabetes mellitus with hydantoin derivatives
    Patent number: 4540704
    Abstract: Novel hydantoin derivatives and salts thereof, the process for the preparation thereof, and medicines containing the same, wherein the hydantoin derivatives are represented by the general formula: ##STR1## wherein X.sub.1 and X.sub.2, which may be the same or different, independently represent a hydrogen atom, a halogen atom, a lower alkyl group or a lower alkoxy group; Y represents an oxygen atom or sulfur atom, R.sub.1 and R.sub.2, which may be the same or different, independently represent a hydrogen atom, a lower alkyl group or phenyl group, or both may form a ring with carbon atoms, excluding the case wherein both R.sub.1 and R.sub.2 are hydrogen atom, and n represents 0 or 1. The novel hydantoin derivatives and salts thereof have excellent effects for the treatment of the complications of diabetes mellitus.
    Type: Grant
    Filed: June 7, 1983
    Date of Patent: September 10, 1985
    Assignee: Eisai Co., Ltd.
    Inventors: Kouichiro Ueda, Satoru Tanaka, Toshinobu Kunii, Kengo Kagei, Tadashi Sato, Ono Hideki, Issei Ohtsuka, Mayumi Kawase, Toshiharu Ohgoh, Tsuneo Wakabayashi