Patents by Inventor Nagai Tsutomu

Nagai Tsutomu 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).

  • Cosmetic material
    Publication number: 20040247559
    Abstract: A cosmetic material which not only inhibits tyrosinase activity and melanin production but also erases free radicals and activates cells, thereby reliably maintaining white skin. The cosmetic material contains as its active ingredient an extract in aqueous solvent of a yeast of the genus Schizosaccharomyces such as Schizosaccharomyces pombe by 0.05-10 wt %.
    Type: Application
    Filed: June 9, 2004
    Publication date: December 9, 2004
    Inventors: Tanaka Katsumasa, Nagai Tsutomu