Patents by Inventor Airi Katagiri

Airi Katagiri 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).

  • Dispersion of metal nanoparticles, method for producing the same, and method for synthesizing metal nanoparticles
    Patent number: 9580811
    Abstract: The present invention aims to provide a method for producing a dispersion of metal nanoparticles which enables to control the shape and the particle diameter over a wide range, a dispersion of metal nanoparticles having superior dispersion stability, and a method for producing the same. In addition, the present invention further aims to provide a dispersion of metal nanoparticles which has a volume resistivity of 2×10?6 to 6×10?6 ?·cm and is suitable for use as an electrically conductive material, and a method for producing the same. Moreover, the present invention further aims to provide a method for synthesizing metal nanoparticles which can produce metal nanoparticles suitable for use as electrically conductive materials by synthesizing the metal nanoparticles from a insoluble metal salt which is free of corrosive materials.
    Type: Grant
    Filed: May 29, 2015
    Date of Patent: February 28, 2017
    Assignee: Mitsubishi Materials Corporation
    Inventors: Kazuhiko Yamasaki, Airi Katagiri, Masahide Arai, Yoshiaki Takata, Toshiharu Hayashi
  • Dispersion of metal nanoparticles, method for producing the same, and method for synthesizing metal nanoparticles
    Patent number: 9580810
    Abstract: The present invention aims to provide a method for producing a dispersion of metal nanoparticles which enables to control the shape and the particle diameter over a wide range, a dispersion of metal nanoparticles having superior dispersion stability, and a method for producing the same. In addition, the present invention further aims to provide a dispersion of metal nanoparticles which has a volume resistivity of 2×10?6 to 6×10?6 ?·cm and is suitable for use as an electrically conductive material, and a method for producing the same. Moreover, the present invention further aims to provide a method for synthesizing metal nanoparticles which can produce metal nanoparticles suitable for use as electrically conductive materials by synthesizing the metal nanoparticles from a insoluble metal salt which is free of corrosive materials.
    Type: Grant
    Filed: February 27, 2008
    Date of Patent: February 28, 2017
    Assignee: Mitsubishi Materials Corporation
    Inventors: Kazuhiko Yamasaki, Airi Katagiri, Masahide Arai, Yoshiaki Takata, Toshiharu Hayashi
  • DISPERSION OF METAL NANOPARTICLES, METHOD FOR PRODUCING THE SAME, AND METHOD FOR SYNTHESIZING METAL NANOPARTICLES
    Publication number: 20150259803
    Abstract: The present invention aims to provide a method for producing a dispersion of metal nanoparticles which enables to control the shape and the particle diameter over a wide range, a dispersion of metal nanoparticles having superior dispersion stability, and a method for producing the same. In addition, the present invention further aims to provide a dispersion of metal nanoparticles which has a volume resistivity of 2×10?6 to 6×10?6?.cm and is suitable for use as an electrically conductive material, and a method for producing the same. Moreover, the present invention further aims to provide a method for synthesizing metal nanoparticles which can produce metal nanoparticles suitable for use as electrically conductive materials by synthesizing the metal nanoparticles from a insoluble metal salt which is free of corrosive materials.
    Type: Application
    Filed: May 29, 2015
    Publication date: September 17, 2015
    Applicant: MITSUBISHI MATERIALS CORPORATION
    Inventors: Kazuhiko Yamasaki, Airi Katagiri, Masahide Arai, Yoshiaki Takata, Toshiharu Hayashi
  • DISPERSION OF METAL NANOPARTICLES, METHOD FOR PRODUCING THE SAME, AND METHOD FOR SYNTHESIZING METAL NANOPARTICLES
    Publication number: 20100101637
    Abstract: The present invention aims to provide a method for producing a dispersion of metal nanoparticles which enables to control the shape and the particle diameter over a wide range, a dispersion of metal nanoparticles having superior dispersion stability, and a method for producing the same. In addition, the present invention further aims to provide a dispersion of metal nanoparticles which has a volume resistivity of 2×10?6 to 6×10?6 ?·cm and is suitable for use as an electrically conductive material, and a method for producing the same. Moreover, the present invention further aims to provide a method for synthesizing metal nanoparticles which can produce metal nanoparticles suitable for use as electrically conductive materials by synthesizing the metal nanoparticles from a insoluble metal salt which is free of corrosive materials.
    Type: Application
    Filed: February 27, 2008
    Publication date: April 29, 2010
    Applicant: Mitsubishi Materials Corporation
    Inventors: Kazuhiko Yamasaki, Airi Katagiri, Masahide Arai, Yoshiaki Takata, Toshiharu Hayashi