Inventor
NAKATSUGAWA KAORI
JP9 patents
Patents
9 patentsUS10634986B2Apr 28, 2020
Screen, display apparatus, screen use method, particle, particle layer, particle sheet, and light control sheet
DAINIPPON PRINTING CO LTD2 citations72
US11549664B2Jan 10, 2023
Portable lighting device and lighting method
DAINIPPON PRINTING CO LTD0 citations61
US11505111B2Nov 22, 2022
Illumination apparatus having a coherent light source and diffraction optical device that has a plurality of diffraction zones and widens the width of the illumination zone
DAINIPPON PRINTING CO LTD0 citations61
US11186219B2Nov 30, 2021
Illumination apparatus, hologram device, and vehicle control method
DAINIPPON PRINTING CO LTD0 citations61
US10955736B2Mar 23, 2021
Screen, display apparatus, screen use method, particle, particle layer, particle sheet, and light control sheet
DAINIPPON PRINTING CO LTD0 citations61
US10773636B2Sep 15, 2020
Illumination apparatus, hologram device, and vehicle control method
DAINIPPON PRINTING CO LTD0 citations50
US10754168B2Aug 25, 2020
Illumination device
DAINIPPON PRINTING CO LTD0 citations50
US10656495B2May 19, 2020
Optical sheet, screen, and display apparatus
DAINIPPON PRINTING CO LTD0 citations50
US10317695B2Jun 11, 2019
Illumination device
DAINIPPON PRINTING CO LTD0 citations50