Patents by Inventor Yoshiaki Asahi

Yoshiaki Asahi 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).

  • Method for stabilizing macrolide compounds
    Patent number: 7655442
    Abstract: The present invention provides a method for stabilizing a macrolide compound, and an efficient method for producing the compound. Specifically, it provides a method for stabilizing a macrolide compound, in which a 12-membered ring macrolide compound, such as a compound expressed by the formula (1) and a cyclodextrin are both present, and a method for producing a macrolide compound, in which a cyclodextrin is made to be present in a culture broth of actinomycetes having an ability of producing the macrolide compound.
    Type: Grant
    Filed: January 28, 2005
    Date of Patent: February 2, 2010
    Assignees: Eisai R&D Management Co., Ltd., Mercian Corporation
    Inventors: Hiroshi Ishihara, Susumu Takeda, Tomonari Yamada, Yoshiaki Asahi
  • Method for stabilizing macrolide compounds
    Publication number: 20070155696
    Abstract: The present invention provides a method for stabilizing a macrolide compound, and an efficient method for producing the compound. Specifically, it provides a method for stabilizing a macrolide compound, in which a 12-membered ring macrolide compound, such as a compound expressed by the formula (1) and a cyclodextrin are both present, and a method for producing a macrolide compound, in which a cyclodextrin is made to be present in a culture broth of actinomycetes having an ability of producing the macrolide compound.
    Type: Application
    Filed: January 28, 2005
    Publication date: July 5, 2007
    Inventors: Hiroshi Ishihara, Susumu Takeda, Tomonari Yamada, Yoshiaki Asahi