Patents by Inventor Tatsnobu Yoshioka

Tatsnobu Yoshioka 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).

  • Lipid-peptide-polymer conjugates for long blood circulation and tumor specific drug delivery systems
    Patent number: 7169892
    Abstract: The present invention relates to conjugates of a lipid, substrate peptide of an enzyme secreted from the cells of mammals, including humans, and a water-soluble polymer that can be used as colloidal carriers and the like of tissue-specific drug delivery systems, methods of producing these conjugates, peptide-water-soluble polymer conjugates optionally having protective groups that are useful as the intermediates of these conjugates, colloidal carriers made from these conjugates, and tissue-specific drug delivery systems that use these colloidal carriers.
    Type: Grant
    Filed: January 9, 2004
    Date of Patent: January 30, 2007
    Assignee: Astellas Pharma Inc.
    Inventors: Maeda Atsushi, Akira Takagi, Katsumi Saito, Noboru Yamashita, Tatsnobu Yoshioka
  • Lipid-peptide-polymer conjugates for long blood circulation and tumor specific drug delivery systems
    Publication number: 20050054026
    Abstract: The present invention relates to conjugates of a lipid, substrate peptide of an enzyme secreted from the cells of mammals, including humans, and a water-soluble polymer that can be used as colloidal carriers and the like of tissue-specific drug delivery systems, methods of producing these conjugates, peptide-water-soluble polymer conjugates optionally having protective groups that are useful as the intermediates of these conjugates, colloidal carriers made from these conjugates, and tissue-specific drug delivery systems that use these colloidal carriers.
    Type: Application
    Filed: January 9, 2004
    Publication date: March 10, 2005
    Applicant: Yamanouchi Pharmaceutical Co., Ltd.
    Inventors: Maeda Atsushi, Akira Takagi, Katsumi Saito, Noboru Yamashita, Tatsnobu Yoshioka