Patents by Inventor Keiko Kuroiwa

Keiko Kuroiwa 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).

  • Ether and amide compounds preparation thereof composition containing same and use thereof as antidiadetics
    Patent number: 6414001
    Abstract: Ether and amide derivatives are disclosed, which are represented by the following formula (I) and its pharmaceutical acceptable salt, and which are useful for the treatment of diabetes. R1—A—R2  (I) wherein (with the provisos that (i) when A is —O—, then n is 2 or 3 (ii) when then n is 1 or 2. R3 is OH—, CH3SO2NH—, CF3SO2NH—, CH3SO2NHCH2—, CF3SO2NHCH2—, HOOC—, CH3OOC—, HOOC—CH2SO2NH—, CF3—CH2SO2NH—,  R8—NHSO2—, R8—NHSO2—CH2—, HOOC—CH2—O—, HSO3N═CH—, or R9—SO2NHCO—; R4 is H, OH, O-alkyl or O—CH2OCH3; R5 is H, halogen atom, —CH2COOH or OH; R6 and R7 are hydrogen, t-butyl or pyrolidyl; R8 is hydrogen or lower alkyl; R9 is alkyl or thienyl; R10 is lower alkyl) or a pharmaceutically acceptable salt.
    Type: Grant
    Filed: January 10, 2001
    Date of Patent: July 2, 2002
    Assignee: Kotobuki Pharmaceutical Co. Ltd.
    Inventors: Tsuyoshi Tomiyama, Akira Tomiyama, Hiroshi Tomiyama, Keiko Kuroiwa
  • Ether and amide compounds and preparation of thereof as antidiadetics.
    Publication number: 20010008898
    Abstract: Ether and amide derivatives are disclosed, which are represented by the following formula (I) and its pharmaceutical acceptable salt, and which are useful for the treatment of diabetes.
    Type: Application
    Filed: January 10, 2001
    Publication date: July 19, 2001
    Inventors: Tsuyoshi Tomiyama, Akira Tomiyama, Hiroshi Tomiyama, Keiko Kuroiwa