Patents by Inventor Naoko Yamanaka

Naoko Yamanaka 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).

  • Composition for percutaneous administration
    Patent number: 4847260
    Abstract: A composition for percutaneous administration containing a nicotinic ester represented by formula (I) ##STR1## or an isonicotinic ester represented by formula (II) ##STR2## wherein R and R' each represents an alkyl group having 5 or more carbon atoms,with or without a specific polar compound. The composition improves percutaneous absorption of an active ingredient.
    Type: Grant
    Filed: October 26, 1987
    Date of Patent: July 11, 1989
    Assignee: Nitto Denko Corporation
    Inventors: Yoko Abe, Susumu Satoh, Mitsuhiko Hori, Naoko Yamanaka