Patents by Inventor Eiko Takeuchi

Eiko Takeuchi 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).

  • Active oxygen scavenger
    Patent number: 5346697
    Abstract: The present invention relates to an active oxygen scavenger which has been found to be contained in a water or organic solvent extract of rice. This active oxygen scavenger may be used as a medicament, beauty treatment, preservative or antibiotic.
    Type: Grant
    Filed: May 19, 1992
    Date of Patent: September 13, 1994
    Assignee: Soken Co., Ltd.
    Inventors: Yoshie Tokuyama, Hiroshi Suzuki, Yoshihisa Matsuo, Eiko Takeuchi