Patents by Inventor Yasuo Suemoto

Yasuo Suemoto 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).

  • AGENT FOR EXTERNAL APPLICATION TO THE SKIN
    Publication number: 20090263339
    Abstract: The present invention has an object to provide an agent for suppressing melanin production and/or inhibiting elastase activity containing a plant extract as an effective substance with high safety and acceptable levels of stability and odor or sediment formation and an agent for external application to the skin comprising the above agent which has excellent effects in skin-whitening and skin-beautifying. The object is attained by providing an agent for external application to the skin containing indigo-plant extract.
    Type: Application
    Filed: May 26, 2006
    Publication date: October 22, 2009
    Applicant: KABUSHIKI KAISHA HAYASHIBARA SEIBUTSU KAGAKU KENKY
    Inventors: Fumiyo Kyono, Yasuo Suemoto, Satoru Takayama, Makoto Takeuchi
  • Melanin formation-inhibitory protein, and its preparation and uses
    Patent number: 5331091
    Abstract: A novel melanin formation-inhibitory protein, which has a molecular weight of 90,000.+-.20,000 and a pI of 5.5.+-.0.5, exerts a tyrosinase formation-inhibitory activity in pigment cells but does not substantially inhibit the inherent tyrosinase activity. Thus, the protein is advantageously used as a pharmaceutical and as a cosmetic in the prevention and/or treatment for local chromatosises such as chloasma, ephelis and sunburn, as well as for systemic chromatosises such as addisonism.
    Type: Grant
    Filed: August 20, 1993
    Date of Patent: July 19, 1994
    Assignee: Kabushiki Kaisha Hayashibara Seitbutsu Kagaku Kenkyujo
    Inventors: Shigeharu Fukuda, Yasuo Suemoto, Masashi Kurimoto