Patents by Inventor Yuki Hokita

Yuki Hokita 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).

  • Copper nanoparticles and production method for same, copper nanoparticle fluid dispersion, copper nanoink, copper nanoparticle preservation method, and copper nanoparticle sintering method
    Patent number: 10214656
    Abstract: An object of the present invention is to provide copper nanoparticles that suppress the oxidation of copper, have an average particle diameter of 10 nm or less and therefore undergo a remarkable reduction in the melting point, are highly dispersible, can be sintered at a low temperature, allow the removal of the protective layer during low-temperature sintering at 150° C. or less, and can be suitably used as a conductive copper nanoink material; and to also provide a method for preserving copper nanoparticles, whereby the copper nanoparticles can be stably preserved at room temperature for a long period of time, and can be transported.
    Type: Grant
    Filed: February 12, 2015
    Date of Patent: February 26, 2019
    Assignee: A SCHOOL CORPORATION KANSAI UNIVERSITY
    Inventors: Hideya Kawasaki, Ryuichi Arakawa, Yuki Hokita
  • COPPER NANOPARTICLES AND PRODUCTION METHOD FOR SAME, COPPER NANOPARTICLE FLUID DISPERSION, COPPER NANOINK, COPPER NANOPARTICLE PRESERVATION METHOD, AND COPPER NANOPARTICLE SINTERING METHOD
    Publication number: 20170073538
    Abstract: An object of the present invention is to provide copper nanoparticles that suppress the oxidation of copper, have an average particle diameter of 10 nm or less and therefore undergo a remarkable reduction in the melting point, are highly dispersible, can be sintered at a low temperature, allow the removal of the protective layer during low-temperature sintering at 150° C. or less, and can be suitably used as a conductive copper nanoink material; and to also provide a method for preserving copper nanoparticles, whereby the copper nanoparticles can be stably preserved at room temperature for a long period of time, and can be transported.
    Type: Application
    Filed: February 12, 2015
    Publication date: March 16, 2017
    Applicant: A SCHOOL CORPORATION KANSAI UNIVERSITY
    Inventors: Hideya Kawasaki, Ryuichi Arakawa, Yuki Hokita