Inventor
YAMADA FUMIKA
JP12 patents
⚠️ This page may combine multiple inventors who share the name “YAMADA FUMIKA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SEIKO EPSON CORP
11 patentsUS10884244B2Jan 5, 2021
Display apparatus
SEIKO EPSON CORP10 citations85
US10025009B2Jul 17, 2018
Optical device and image display apparatus
SEIKO EPSON CORP13 citations83
US9568730B2Feb 14, 2017
Optical device including diffraction elements for diffracting light inside of a light guide, image projecting apparatus, and electronic device
SEIKO EPSON CORP9 citations83
US11048153B2Jun 29, 2021
Optical device and display device
SEIKO EPSON CORP3 citations71
US12449569B2Oct 21, 2025
Wavefront control element, lighting device, and projector
SEIKO EPSON CORP0 citations60
US12429629B2Sep 30, 2025
Projector
SEIKO EPSON CORP0 citations60
US11317066B2Apr 26, 2022
Phase modulation element and display device
SEIKO EPSON CORP1 citations60
US12035078B2Jul 9, 2024
Light source device and projector
SEIKO EPSON CORP0 citations50
US11592682B2Feb 28, 2023
Display apparatus
SEIKO EPSON CORP0 citations50
US11022800B2Jun 1, 2021
Display device
SEIKO EPSON CORP0 citations50
US10146056B2Dec 4, 2018
Image display apparatus having a diffraction optical element
SEIKO EPSON CORP0 citations50