Patents by Inventor Tkahisa Nishimura

Tkahisa Nishimura 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).

  • Skin preparations for external use
    Publication number: 20030143251
    Abstract: As dermatological topical preparations formulated therein melanin production inhibitors which, unlike the conventional melanin production inhibitors, are stable with respect to heat and oxidation and which do no cause decomposition or pigmentation over time when added to topical agents, hydroquinone-&agr;-D-glucopyranoside, which shows superior inhibitory activities on human tyrosinase, is added as a melanin production inhibitor.
    Type: Application
    Filed: December 2, 2002
    Publication date: July 31, 2003
    Inventors: Hiroki Nakayama, Shigetaka Okada, Takashi Kometani, Tkahisa Nishimura