Patents by Inventor Eiichi Honzawa

Eiichi Honzawa 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).

  • Production process for polymeric micelle charged therein with drug and polymeric micelle composition
    Patent number: 7223419
    Abstract: Provided are a production process for a polymeric micelle which is stable and has a high drug content and a composition containing such polymeric micelle. Disclosed are a production process for a polymeric micelle, comprising the steps of dissolving a drug and a specific copolymer in a water non-miscible organic solvent to prepare a solution, mixing the resulting solution with water to form an O/W type emulsion and then slowly volatilizing the organic solvent from the solution, and a polymeric micelle composition charged therein with a water-scarcely soluble drug, which can be obtained by the above production process.
    Type: Grant
    Filed: September 22, 2003
    Date of Patent: May 29, 2007
    Assignee: Nanocarrier Co., Ltd.
    Inventors: Masayuki Yokoyama, Eiichi Honzawa, Yasuaki Ogawa
  • Production process for polymeric micelle charged therein with drug and polymeric micelle composition
    Publication number: 20040056372
    Abstract: Provided are a production process for a polymeric micelle which is stable and has a high drug content and a composition containing such polymeric micelle. Disclosed are a production process for a polymeric micelle, comprising the steps of dissolving a drug and a specific copolymer in a water non-miscible organic solvent to prepare a solution, mixing the resulting solution with water to form an O/W type emulsion and then slowly volatilizing the organic solvent from the solution, and a polymeric micelle composition charged therein with a water-scarcely soluble drug, which can be obtained by the above production process.
    Type: Application
    Filed: September 22, 2003
    Publication date: March 25, 2004
    Inventors: Masayuki Yokoyama, Eiichi Honzawa, Yasuaki Ogawa
  • Production process for polymeric micelle charged therein with drug and polymeric micelle composition
    Publication number: 20010014354
    Abstract: Provided are a production process for a polymeric micelle which is stable and has a high drug content and a composition containing such polymeric micelle. Disclosed are a production process for a polymeric micelle, comprising the steps of dissolving a drug and a specific copolymer in a water non-miscible organic solvent to prepare a solution, mixing the resulting solution with water to form an O/W type emulsion and then slowly volatilizing the organic solvent from the solution, and a polymeric micelle composition charged therein with a water-scarcely soluble drug, which can be obtained by the above production process.
    Type: Application
    Filed: February 8, 2001
    Publication date: August 16, 2001
    Applicant: NANOCARRIER CO., LTD.
    Inventors: Masayuki Yokoyama, Eiichi Honzawa, Yasuaki Ogawa