Patents by Inventor Ryohei HOKARI

Ryohei HOKARI 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).

  • Publication number: 20210162788
    Abstract: A method for manufacturing an optical element comprising a fine pattern over a substrate. Further, the method comprises: preparing the substrate comprising an uneven structure on a surface of the substrate, the uneven structure comprising recesses for the fine pattern; applying functional ink to the recesses; obtaining the optical element comprising the fine pattern made from the functional ink in the recesses.
    Type: Application
    Filed: December 10, 2020
    Publication date: June 3, 2021
    Applicant: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY
    Inventors: Ryohei HOKARI, Kazuma KURIHARA, Naoki TAKADA
  • Publication number: 20180304660
    Abstract: In the present invention, an uneven structure is formed on a surface of a base material to be printed to which ink is applied, and the pitch, the shape in plan view, and the depth of recesses in the uneven structure are determined on the basis of the physical properties (specific weight, viscosity, and contact angle) of ink to be used, in accordance with a printing pattern and a required printing precision. The amount of ink filling the recesses is thereby controlled, and high-precision is enabled at low cost without changing the printing process itself.
    Type: Application
    Filed: October 17, 2016
    Publication date: October 25, 2018
    Applicant: National Institute of Advanced Industrial Science and Technology
    Inventors: Ryohei HOKARI, Kazuma KURIHARA, Naoki TAKADA