Patents by Inventor Nana Shirakigawa

Nana Shirakigawa 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).

  • Gel-In-Oil Emulsion and Transdermally Absorbed Agent
    Publication number: 20210267886
    Abstract: A gel-in-oil emulsion comprising a gelled water-soluble polymer, an oil, and a surfactant, and a transdermal absorption preparation comprising the gel-in-oil emulsion.
    Type: Application
    Filed: June 27, 2019
    Publication date: September 2, 2021
    Applicants: Nippon Shokubai Co., Ltd., Kyushu University, National University Corporation
    Inventors: Hiroyuki Ijima, Nana Shirakigawa, Emiko Yamamoto