Patents by Inventor Ryuko Takeya

Ryuko Takeya 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).

  • 1,5-Disubstituted imidazoles as inhibitors of juvenile hormone
    Patent number: 4812473
    Abstract: The present invention provides a 1,5-disubstituted imidazole represented by the formula (1) ##STR1## wherein R.sup.1 is a lower alkyl group, a cycloalkyl group or a phenyl lower alkyl group, and R.sup.2 is a 2,6-dimethyl-1,5-heptadienyl group or a 2,6-dimethylheptyl group, except for a compound wherein R.sup.1 is a phenyl lower alkyl group and R.sup.2 is a 2,6-dimethyl-1,5-heptadienyl group, and a salt thereof, a process for their preparation and an active agent able to inhibit the activity of the juvenile hormone.
    Type: Grant
    Filed: November 23, 1987
    Date of Patent: March 14, 1989
    Assignee: Earth Chemical Co., Ltd.
    Inventors: Eiichi Kuwano, Ryuko Takeya, Morifusa Eto, Shoji Asano