Patents by Inventor James S. Chu

James S. Chu 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).

  • GASTROINTESTINAL-SPECIFIC MULTIPLE DRUG RELEASE SYSTEM
    Publication number: 20100183713
    Abstract: The present invention provides compositions and methods for the multiple release of a drug in the gastrointestinal tract of a subject through the use of an oral multiple drug release system. The system provides site-specific release of the drug to both the small intestine and the colon in the form of multiple controlled doses for long-lasting efficacy, thereby reducing the drug dosing frequency.
    Type: Application
    Filed: January 15, 2010
    Publication date: July 22, 2010
    Applicant: Astellas Pharma Inc.
    Inventors: Keiko Tsutsumi, James S. Chu
  • Gastrointestinal-specific multiple drug release system
    Patent number: 7670624
    Abstract: The present invention provides compositions and methods for the multiple release of a drug in the gastrointestinal tract of a subject through the use of an oral multiple drug release system. The system provides site-specific release of the drug to both the small intestine and the colon in the form of multiple controlled doses for long-lasting efficacy, thereby reducing the drug dosing frequency.
    Type: Grant
    Filed: January 27, 2005
    Date of Patent: March 2, 2010
    Assignee: Astella Pharma Inc.
    Inventors: Keiko Tsutsumi, James S. Chu
  • Tablets and methods for modified release of hydrophilic and other active agents
    Patent number: 6419954
    Abstract: The invention provides a tablet and methods for making the tablet comprising a gel-forming material and at least one particle comprising an active agent in contact with a coating material to modify release of the active agent.
    Type: Grant
    Filed: May 19, 2000
    Date of Patent: July 16, 2002
    Assignee: Yamanouchi Pharmaceutical Co., Ltd.
    Inventors: James S. Chu, Yisong Yang, Joseph A. Fix