Patents by Inventor Eiji Nonaka

Eiji Nonaka 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).

  • Antimicrobial fiber and its production method, and antimicrobial fiber product comprising the antimicrobial fiber, its production method and regeneration method
    Patent number: 7858106
    Abstract: An antimicrobial fiber bearing an anionic functional group, and a method of producing it wherein at least a part of the anionic functional group forms a quaternary ammonium salt and at least another part thereof forms an antimicrobial metal salt. The quaternary ammonium salt is preferably a cetylpyridinium salt, and the antimicrobial metal salt is preferably a zinc salt. The fiber is preferably a carboxyalkylated cellulose fiber. An antimicrobial fiber product comprising the antimicrobial fiber.
    Type: Grant
    Filed: September 20, 2007
    Date of Patent: December 28, 2010
    Assignee: Alcare Co., Ltd.
    Inventor: Eiji Nonaka
  • ANTIMICROBIAL FIBER AND ITS PRODUCTION METHOD, AND ANTIMICROBIAL FIBER PRODUCT COMPRISING THE ANTIMICROBIAL FIBER, ITS PRODUCTION METHOD AND REGENERATION METHOD
    Publication number: 20100113537
    Abstract: An antimicrobial fiber bearing an anionic functional group, and a method of producing it wherein at least a part of the anionic functional group forms a quaternary ammonium salt and at least another part thereof forms an antimicrobial metal salt. The quaternary ammonium salt is preferably a cetylpyridinium salt, and the antimicrobial metal salt is preferably a zinc salt. The fiber is preferably a carboxyalkylated cellulose fiber. An antimicrobial fiber product comprising the antimicrobial fiber.
    Type: Application
    Filed: September 20, 2007
    Publication date: May 6, 2010
    Applicant: ALCARE CO., LTD.
    Inventor: Eiji Nonaka