Patents by Inventor Masato Koreeda

Masato Koreeda 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).

  • Patent number: 6720307
    Abstract: Novel analogs of fusidic acid are described with one or more carbohydrate units attached. Certain glycosylated analogs of fusidic acid have enhanced solubility properties in diluents or excipient of choice as compared to unmodified fusidic acid. Certain glycosylated analogs may be employed as chemotherapeutic agents and particular analogs may be useful for fighting anti-microbial infections.
    Type: Grant
    Filed: July 2, 2002
    Date of Patent: April 13, 2004
    Assignee: The University of Michigan
    Inventors: Roeland Tuinman, Masato Koreeda, Brian Keith Shull
  • Publication number: 20030004321
    Abstract: Novel analogs of fusidic acid are described with one or more carbohydrate units attached. Certain glycosylated analogs of fusidic acid have enhanced solubility properties in diluents or excipient of choice as compared to unmodified fusidic acid. Certain glycosylated analogs may be employed as chemotherapeutic agents and particular analogs may be useful for fighting anti-microbial infections.
    Type: Application
    Filed: July 2, 2002
    Publication date: January 2, 2003
    Inventors: Roeland Tuinman, Masato Koreeda, Brian Keith Shull
  • Patent number: 6462182
    Abstract: Novel analogs of fusidic acid are described with one or more carbohydrate units attached. Certain glycosylated analogs of fusidic acid have enhanced solubility properties in diluents or excipient of choice as compared to unmodified fusidic acid. Certain glycosylated analogs may be employed as chemotherapeutic agents and particular analogs may be useful for fighting anti-microbial infections.
    Type: Grant
    Filed: July 14, 2000
    Date of Patent: October 8, 2002
    Assignee: The University of Michigan
    Inventors: Roeland Tuinman, Masato Koreeda, Brian Keith Shull
  • Patent number: 6103884
    Abstract: Novel analogs of fusidic acid are described with one or more carbohydrate units attached. Certain glycosylated analogs of fusidic acid have enhanced solubility properties in diluents or excipient of choice as compared to unmodified fusidic acid. Certain glycosylated analogs may be employed as chemotherapeutic agents and particular analogs may be useful for fighting anti-microbial infections.
    Type: Grant
    Filed: March 27, 1996
    Date of Patent: August 15, 2000
    Assignee: The University of Michigan
    Inventors: Masato Koreeda, Roeland Tuinman, Brian Keith Shull
  • Patent number: 6093805
    Abstract: Novel glycosides, especially steroidal and non-steroidal glycosides are provided. The steroidal and non-steroidal glycosides preferably are prepared from aglycons which possess valuable properties such as pharmacological properties. The glycosides are prepared from useful aglycons and possess useful properties which are the same as those of their respective unglycosylated aglycons. The glycosides are provided in acylated and deacylated form. The acylated glycosides after hydrolysis of the acyl groups possess enhanced water solubility properties, as illustrated in the case where the aglycon is acetominophen.
    Type: Grant
    Filed: August 21, 1997
    Date of Patent: July 25, 2000
    Assignee: The Regents of the University of Michigan
    Inventors: Brian K. Shull, Roeland J. Tuinman, Todd A. Houston, R. Erich Klemke, Masato Koreeda
  • Patent number: 5932709
    Abstract: The present invention relates to chemotherapeutic agents, and more particularly, to novel analogs of camptothecin. The camptothecin analogs display increased solubility through the hydrophilicity of added non-ionic sugar substituents. In accordance with the present invention, a member from the class of novel camptothecin analogs is to be delivered in vivo as a chemotherapeutic agent to fight cancer growth in the body.
    Type: Grant
    Filed: June 16, 1997
    Date of Patent: August 3, 1999
    Assignee: University of Michigan
    Inventors: Brian Keith Shull, Clarke Slemon, Masato Koreeda
  • Patent number: 5693767
    Abstract: Novel glycosides, especially steroidal and non-steroidal glycosides are provided. The steroidal and non-steroidal glycosides preferably are prepared from aglycons which possess valuable properties such as pharmacological properties. The glycosides are prepared from useful aglycons and possess useful properties which are the same as those of their respective unglycosylated aglycons. The glycosides are provided in acylated and deacylated form. The acylated glycosides after hydrolysis of the acyl groups possess enhanced water solubility properties, as illustrated in the case where the aglycon is acetominophen.
    Type: Grant
    Filed: June 1, 1994
    Date of Patent: December 2, 1997
    Assignee: Harrier Inc.
    Inventors: R. -Erich Klemke, Masato Koreeda, Todd A. Houston, Brian K. Shull, Roeland J. Tuinman
  • Patent number: 5677286
    Abstract: The present invention relates to chemotherapeutic agents, and more particularly, to novel analogs of camptothecin. The camptothecin analogs display increased solubility through the hydrophilicity of added non-ionic sugar substituents. In accordance with the present invention, a member from the class of novel camptothecin analogs is to be delivered in vivo as a chemotherapeutic agent to fight cancer growth in the body.
    Type: Grant
    Filed: April 27, 1995
    Date of Patent: October 14, 1997
    Assignee: The University of Michigan
    Inventors: Brian K. Shull, Clarke Slemon, Masato Koreeda
  • Patent number: 5668168
    Abstract: This invention pertains to a novel group of 1,2-dithiin compounds useful as antiinfective agents, and a novel synthetic process to produce the same. The compounds are particularly effective in treating fungal infections, especially those caused by Candida albicans, Cryptococcus neoformans or Aspergillus fumigatus.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: September 16, 1997
    Assignees: Shaman Pharmaceuticals, Inc., The Regents of the University of Michigan
    Inventors: Thien V. Truong, Donald E. Bierer, Jeffrey M. Dener, Richard Hector, Michael S. Tempesta, Bernard Loev, Wu Yang, Masato Koreeda
  • Patent number: 5556875
    Abstract: This invention pertains to a novel group of 1,2-dithiin compounds useful as antiinfective agents, and a novel synthetic process to produce the same. The compounds are particularly effective in treating fungal infections, especially those caused by Candida albicans, Cryptococcus neoformans or Aspergillus fumigatus.
    Type: Grant
    Filed: August 24, 1995
    Date of Patent: September 17, 1996
    Assignees: Shaman Pharmaceuticals, Inc., The Regents of the University of Michigan
    Inventors: Thien V. Truong, Donald E. Bierer, Jeffrey M. Dener, Richard Hector, Michael S. Tempesta, Bernard Loev, Wu Yang, Masato Koreeda
  • Patent number: 5453500
    Abstract: Novel water-soluble mono and disaccharides of 1,2-dithiins, as well as methods for their synthesis and the synthesis of 3,6-bis(hydroxymethyl)-1,2-dithiin, are provided. The water-soluble compounds have useful medicinal applications, e.g., as an antifungal agent or antibacterial agent in a pharmaceutically acceptable carrier.
    Type: Grant
    Filed: May 26, 1994
    Date of Patent: September 26, 1995
    Assignee: The University of Michigan
    Inventors: Masato Koreeda, Brian K. Shull, Wu Yang
  • Patent number: 5414074
    Abstract: The invention concerns C-glycosylated derivatives of soft carbon nucleophile compounds, particularly compounds which contain acid-labile structural units. The invention further concerns a mild, cost-effective, non-hazardous and stereoselective method of general application employing a glycal as a glycosyulating agent and iodine as a catalyst for the preparation of C-glycosylated soft carbon nucleophile compounds.
    Type: Grant
    Filed: September 25, 1992
    Date of Patent: May 9, 1995
    Assignee: University of Michigan
    Inventors: Masato Koreeda, Todd A. Houston