Patents by Inventor Yasuo Shimoj

Yasuo Shimoj 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).

  • Crystalline 1-methylcarbapenem derivatives
    Patent number: 7041660
    Abstract: This invention provides crystalline forms of a 1-methylcarbapenem derivative of formula (I-1), (I-2) or (I-3) The crystalline forms of the 1-methylcarbapenem derivative exhibit excellent antibiotic activity against various bacterial strains and sufficient stability for practical use.
    Type: Grant
    Filed: July 23, 2003
    Date of Patent: May 9, 2006
    Assignee: Sankyo Company, Limited
    Inventors: Isao Kawamoto, Yasuo Shimoj, Hiroshi Fukuhara