Patents by Inventor Akiyoshi Shimaya

Akiyoshi Shimaya 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).

  • Bisoxadiazolidine derivative
    Patent number: 5643931
    Abstract: A bisoxadiazolidine dione derivative represented by the following general formula (I) or a pharmaceutically acceptable salt thereof, which is useful as an insulin sensitivity-increasing drug, and a pharmaceutical composition thereof. ##STR1## each represents a phenylene groupL:(1) an oxygen,(2) a ##STR2## (3) a --S(O).sub.n --, (4) a --CO--,(5) a ##STR3## (6) an alkylene group or an alkenylene group which may respectively be interrupted with an oxygen atom and/or a sulfur atom.
    Type: Grant
    Filed: October 26, 1995
    Date of Patent: July 1, 1997
    Assignee: Yamanouchi Pharmaceutical Co., Ltd.
    Inventors: Kunihiro Niigata, Takumi Takahashi, Tatsuya Maruyama, Takayuki Suzuki, Kyoichi Maeno, Kenichi Onda, Toru Kontani, Osamu Noshiro, Reiko Koike, Akiyoshi Shimaya, Jun Irie
  • Bisheterocyclic derivative or salt thereof
    Patent number: 5508296
    Type: Grant
    Filed: January 31, 1994
    Date of Patent: April 16, 1996
    Assignee: Yamanouchi Pharmaceutical Co., Ltd.
    Inventors: Kunihiro Niigata, Takumi Takahashi, Takashi Yoneda, Osamu Noshiro, Reiko Koike, Akiyoshi Shimaya