Inventor
YAMAOKA RYOHEI
JP28 patents
⚠️ This page may combine multiple inventors who share the name “YAMAOKA RYOHEI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SEMICONDUCTOR ENERGY LAB
27 patentsUS10847498B2Nov 24, 2020
Display device and electronic device
SEMICONDUCTOR ENERGY LAB66 citations98
US9515278B2Dec 6, 2016
Light-emitting element, display module, lighting module, light-emitting device, display device, electronic device, and lighting device
SEMICONDUCTOR ENERGY LAB52 citations98
US10332859B2Jun 25, 2019
Display device with overlapped display panels capable of displaying a wide color gamut image on a seamless wide display region
SEMICONDUCTOR ENERGY LAB18 citations94
US9577222B2Feb 21, 2017
Light-emitting device having multi-thickness transparent conductive layers
SEMICONDUCTOR ENERGY LAB17 citations92
US10622334B2Apr 14, 2020
Display device with overlapped flexible substrates for displaying a wide color gamut image
SEMICONDUCTOR ENERGY LAB5 citations84
US10199436B2Feb 5, 2019
Light-emitting device and electronic device
SEMICONDUCTOR ENERGY LAB5 citations84
US9935292B2Apr 3, 2018
Light-emitting device, electronic device, and lighting device
SEMICONDUCTOR ENERGY LAB13 citations84
US9905617B2Feb 27, 2018
Light-emitting device and electronic device
SEMICONDUCTOR ENERGY LAB7 citations84
US9780338B2Oct 3, 2017
Light-emitting element, display module, lighting module, light-emitting device, display device, electronic device, and lighting device
SEMICONDUCTOR ENERGY LAB6 citations84
US9379345B2Jun 28, 2016
Light-emitting element, light-emitting device, electronic device, and lighting device
SEMICONDUCTOR ENERGY LAB12 citations84
US11387280B2Jul 12, 2022
Light-emitting device and electronic device
SEMICONDUCTOR ENERGY LAB2 citations73
US10573693B2Feb 25, 2020
Light-emitting device and electronic device
SEMICONDUCTOR ENERGY LAB3 citations73
US10164203B2Dec 25, 2018
Light-emitting element, light-emitting device, electronic device, and lighting device
SEMICONDUCTOR ENERGY LAB2 citations73
US9966574B2May 8, 2018
Light-emitting element, display module, lighting module, light-emitting device, display device, electronic device, and lighting device
SEMICONDUCTOR ENERGY LAB2 citations73
US9911937B2Mar 6, 2018
Light-emitting element, light-emitting device, electronic device, and lighting device
SEMICONDUCTOR ENERGY LAB2 citations73
US9666825B2May 30, 2017
Light-emitting element, light-emitting device, electronic device, and lighting device
SEMICONDUCTOR ENERGY LAB3 citations73
US10340470B2Jul 2, 2019
Light-emitting element, display device, electronic device, and lighting apparatus
SEMICONDUCTOR ENERGY LAB4 citations72
US10510806B2Dec 17, 2019
Light-emitting element, light-emitting device, electronic device, and lighting device
SEMICONDUCTOR ENERGY LAB3 citations71
US12376448B2Jul 29, 2025
Light-emitting device, light-emitting apparatus, light-emitting module, electronic device, and lighting device
SEMICONDUCTOR ENERGY LAB0 citations62
US11587904B2Feb 21, 2023
Display device and electronic device
SEMICONDUCTOR ENERGY LAB0 citations62
US11063225B2Jul 13, 2021
Light-emitting element, light-emitting device, electronic device, and lighting device including a nitrogen-containing six-membered heteroaromatic skeleton
SEMICONDUCTOR ENERGY LAB1 citations62
US12382782B2Aug 5, 2025
Estimation of cavity length of light-emitting device
SEMICONDUCTOR ENERGY LAB0 citations61
US11917840B2Feb 27, 2024
Light-emitting device with reflective electrode and light-emitting layer
SEMICONDUCTOR ENERGY LAB0 citations61
US11985892B2May 14, 2024
Light-emitting device, light-emitting apparatus, electronic device, and lighting device
SEMICONDUCTOR ENERGY LAB0 citations52
US10847582B2Nov 24, 2020
Display device, display module, and electronic device
SEMICONDUCTOR ENERGY LAB0 citations52
US10529780B2Jan 7, 2020
Display device, display module, and electronic device
SEMICONDUCTOR ENERGY LAB0 citations52
US9978977B2May 22, 2018
Light-emitting element, light-emitting device, electronic device, and lighting device
SEMICONDUCTOR ENERGY LAB0 citations52