Patents by Inventor Miwako Obama

Miwako Obama 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).

  • Steam permselective membrane, and method using same for separating steam from mixed gas
    Patent number: 9827535
    Abstract: A steam permselective membrane containing a crosslinked hydrophilic polymer is provided. The steam permselective membrane may further contain at least one alkali metal compound selected from the group consisting of a cesium compound, a potassium compound and a rubidium compound.
    Type: Grant
    Filed: July 26, 2011
    Date of Patent: November 28, 2017
    Assignee: Renaissance Energy Research Corporation
    Inventors: Osamu Okada, Eiji Kamio, Nobuaki Hanai, Miwako Obama
  • Steam Permselective Membrane, and Method Using Same for Separating Steam from Mixed Gas
    Publication number: 20130199370
    Abstract: A steam permselective membrane containing a crosslinked hydrophilic polymer is provided. The steam permselective membrane may further contain at least one alkali metal compound selected from the group consisting of a cesium compound, a potassium compound and a rubidium compound.
    Type: Application
    Filed: July 26, 2011
    Publication date: August 8, 2013
    Applicant: RENAISSANCE ENERGY RESEARCH CORPORATION
    Inventors: Osamu Okada, Eiji Kamio, Nobuaki Hanai, Miwako Obama