Patents by Inventor Yuko Ikeda

Yuko Ikeda 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: 5407952
    Abstract: Azole derivatives (including stereoisomers and pharmaceutically acceptable salts) of the formula: ##STR1## wherein R.sub.1 and R.sub.2 each are H or C.sub.1 -C.sub.4 alkyl; R.sub.3 is H, OH, CN, halogen, haloalkyl, C.sub.1 -C.sub.4 alkyl or phenyl, and if there are two or more R.sub.3 groups, such R.sub.3 groups may be the same or different; n is an integer from 0 to 5; Y is N or CH; and X is O, S or NH have antimycotic and aromatase inhibitory activities. Compositions containing the azole derivatives and a method of treating mycosis and estrogen-dependent diseases by administering effective quantities of the azole derivatives are also disclosed.
    Type: Grant
    Filed: September 15, 1993
    Date of Patent: April 18, 1995
    Assignee: Kureha Chemical Industry Co., Ltd.
    Inventors: Kochi Niimura, Yuko Ikeda, Akira Kato, Takao Ando
  • Patent number: 5324740
    Abstract: Azole derivatives (including stereoisomers and pharmaceutically acceptable salts) of the formula: ##STR1## wherein R.sub.1 and R.sub.2 each are H or C.sub.1 -C.sub.4 alkyl; R.sub.3 is H, OH, CN, halogen, haloalkyl, C.sub.1 -C.sub.4 alkyl or phenyl, and if there are two or more R.sub.3 groups, such R.sub.3 groups may be the same or different; n is an integer from 0 to 5; Y is N or CH; and X is O, S or NH have antimycotic and aromatase inhibitory activities. Compositions containing the azole derivatives and a method of treating mycosis and estrogen-dependent diseases by administering effective quantities of the azole derivatives are also disclosed.
    Type: Grant
    Filed: May 26, 1993
    Date of Patent: June 28, 1994
    Assignee: Kureha Chemical Industry Co., Ltd.
    Inventors: Koichi Niimura, Yuko Ikeda, Akira Kato, Takao Ando
  • Patent number: 5286737
    Abstract: This invention provides a method of inhibiting aromatase and treating of estrogen-dependent diseases in a patient by administering azole derivatives as nonsteroidal inhibitors. The azole derivative has the formula ##STR1## where R.sub.1 a is hydrogen or a (C.sub.1 -C.sub.5) alkyl; R.sub.2 is a hydrogen or a (C.sub.1 -C.sub.5) alkyl; R.sub.3 is any of a halogen, a (C.sub.1 -C.sub.5)alkyl, a haloalkyl, a phenyl, a cyano, or nitro; n is 0 to 5; and Y is a nitrogen atom or CH.
    Type: Grant
    Filed: September 16, 1992
    Date of Patent: February 15, 1994
    Assignee: Kureha Kagaku Kogyo Kabushiki Kaisha
    Inventors: Akira Kato, Junko Miyagawa, Yuko Ikeda, Koichi Niimura