Patents by Inventor Ryuichiro Doi

Ryuichiro Doi 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).

  • Metastin derivatives and their use
    Patent number: 6800611
    Abstract: The invention relates to metastin derivatives represented by the formula: X-AA1-AA2-AA3-AA4-Z (I), or a salt thereof, or a pro-drug thereof, which have cancer metastatis suppressing activity and cancer proliferation suppressing activity. The invention also relates to the use of these derivatives as drugs for preventing or treating cancers.
    Type: Grant
    Filed: January 6, 2003
    Date of Patent: October 5, 2004
    Assignee: Takeda Chemical Industries, Ltd.
    Inventors: Nobutaka Fujii, Ryuichiro Doi, Shinya Oishi
  • Metastin derivatives and their use
    Publication number: 20040142875
    Abstract: The invention relates to metastin derivatives represented by the formula: X-AA1-AA2-AA3-AA4-Z (I), or a salt thereof, or a pro-drug thereof, which have cancer metastatis suppressing activity and cancer proliferation suppressing activity. The invention also relates to the use of these derivatives as drugs for preventing or treating cancers.
    Type: Application
    Filed: January 6, 2003
    Publication date: July 22, 2004
    Inventors: Nobutaka Fujii, Ryuichiro Doi, Shinya Oishi