Patents by Inventor Akio IWANADE

Akio IWANADE 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).

  • Cloth-like radioactive material adsorbent and its manufacturing method
    Patent number: 8476188
    Abstract: A renewable adsorbent enabling to adsorb cesium selectively and efficiently, and to reuse cesium by eluting adsorbed cesium, and its manufacturing method are provided. Polyethylene (PE)/polypropylene (PP) based non-woven fabric may be exposed with electron beam, PE/PP based non-woven fabric to which electron beam was exposed is contacted to the monomer solution containing acrylonitrile (AN), dimethyl sulfoxide (DMSO), Tween80 (polyoxyethylene sorbitan monooleate) as a surfactant, and AMP (ammonium molybdophosphate n-hydrate) as an inorganic ion exchanger, and then the inorganic ion exchanger (AMP) is supported directly by the non-ionic graft chain.
    Type: Grant
    Filed: June 4, 2012
    Date of Patent: July 2, 2013
    Assignee: Japan Atomic Energy Agency
    Inventors: Akio Iwanade, Noriaki Seko, Hiroyuki Hoshina, Yuji Ueki, Seiichi Saiki
  • CLOTH-LIKE RADIOACTIVE MATERIAL ADSORBENT AND ITS MANUFACTURING METHOD
    Publication number: 20120329637
    Abstract: A renewable adsorbent enabling to adsorb cesium selectively and efficiently, and to reuse cesium by eluting adsorbed cesium, and its manufacturing method are provided. Polyethylene (PE)/polypropylene (PP) based non-woven fabric may be exposed with electron beam, PE/PP based non-woven fabric to which electron beam was exposed is contacted to the monomer solution containing acrylonitrile (AN), dimethyl sulfoxide (DMSO), Tween80 (polyoxyethylene sorbitan monooleate) as a surfactant, and AMP (ammonium molybdophosphate n-hydrate) as an inorganic ion exchanger, and then the inorganic ion exchanger (AMP) is supported directly by the non-ionic graft chain.
    Type: Application
    Filed: June 4, 2012
    Publication date: December 27, 2012
    Applicant: JAPAN ATOMIC ENERGY AGENCY
    Inventors: Akio IWANADE, Noriaki SEKO, Hiroyuki HOSHINA, Yuji UEKI, Seiichi SAIKI