Patents by Inventor Yoshitoshi Sawada

Yoshitoshi Sawada 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).

  • Urea-containing gel preparation
    Publication number: 20030064959
    Abstract: A gel preparation comprising urea, an acrylic acid polymer and a xanthan gum.
    Type: Application
    Filed: October 23, 2002
    Publication date: April 3, 2003
    Inventors: Yoshitoshi Sawada, Shinya Yamamoto, Saibi Suehiro, Toshio Inagi, Yasuo Shinoda