Patents by Inventor Noriko HARASHIMA

Noriko HARASHIMA 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).

  • Hologram, detection device, and method for verifying authenticity of hologram
    Patent number: 11662689
    Abstract: A hologram that includes a formation layer and a reflection layer that are laminated. The formation layer has an optical phase modulation structure on a first interface in contact with the reflection layer. When reference light emitted from a point light source enters through a second interface different from the first interface of the formation layer, the entirety or part of an image to be reconstructed by the optical phase modulation structure is reconstructed as spatial information on the point light source side relative to the second interface.
    Type: Grant
    Filed: July 24, 2020
    Date of Patent: May 30, 2023
    Assignee: TOPPAN PRINTING CO., LTD.
    Inventors: Soko Koda, Akihito Kagotani, Tomoyuki Shirasaki, Noriko Harashima
  • HOLOGRAM, DETECTION DEVICE, AND METHOD FOR VERIFYING AUTHENTICITY OF HOLOGRAM
    Publication number: 20200356048
    Abstract: A hologram that includes a formation layer and a reflection layer that are laminated. The formation layer has an optical phase modulation structure on a first interface in contact with the reflection layer. When reference light emitted from a point light source enters through a second interface different from the first interface of the formation layer, the entirety or part of an image to be reconstructed by the optical phase modulation structure is reconstructed as spatial information on the point light source side relative to the second interface.
    Type: Application
    Filed: July 24, 2020
    Publication date: November 12, 2020
    Applicant: TOPPAN PRINTING CO., LTD.
    Inventors: Soko KODA, Akihito KAGOTANI, Tomoyuki SHIRASAKI, Noriko HARASHIMA