Patents by Inventor Hirotsugu Yokoi

Hirotsugu Yokoi 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).

  • Pyrimidine derivatives
    Publication number: 20060293343
    Abstract: The object of the invention is to provide a novel compound having an inhibitory action on PDE4 activity with fewer side effects.
    Type: Application
    Filed: May 18, 2006
    Publication date: December 28, 2006
    Applicant: Asahi Kasei Pharma Corporation
    Inventors: Kenji Naganuma, Hirotsugu Yokoi