P

Inventor

KUBOTA TOMOHIRO

JP90 patents
⚠️ This page may combine multiple inventors who share the name “KUBOTA TOMOHIRO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

KUBOTA TOMOHIRO

12 patents

RICOH CO LTD

10 patents

SEMICONDUCTOR ENERGY LAB

9 patents
US12139446B2Nov 12, 2024

Arylamine compound, hole-transport layer material, hole-injection layer material, light-emitting device, light-emitting apparatus, electronic apparatus, and lighting device

SEMICONDUCTOR ENERGY LAB2 citations71
US12460130B2Nov 4, 2025

Organic compound, light-emitting device, light-emitting apparatus, electronic equipment, lighting device, and electronic device

SEMICONDUCTOR ENERGY LAB0 citations63
US12419155B2Sep 16, 2025

Hole-transport layer material, electron-blocking layer material, electron-transport layer material, hole-blocking layer material, light-emitting device, light-emitting apparatus, electronic device, and lighting device

SEMICONDUCTOR ENERGY LAB1 citations63
US11964928B2Apr 23, 2024

Organic compound, light-emitting device, light-emitting apparatus, electronic equipment, lighting device, and electronic device

SEMICONDUCTOR ENERGY LAB0 citations63
US9159934B2Oct 13, 2015

Organic material, light-emitting element, light-emitting device, electronic appliance, and lighting device

SEMICONDUCTOR ENERGY LAB2 citations63
US12356791B2Jul 8, 2025

Light-emitting device, electronic device, and lighting device

SEMICONDUCTOR ENERGY LAB0 citations62
US11800734B2Oct 24, 2023

Light-emitting device, electronic device, and lighting device

SEMICONDUCTOR ENERGY LAB0 citations62
US11482687B2Oct 25, 2022

Light-emitting device, electronic device, and lighting device

SEMICONDUCTOR ENERGY LAB0 citations62
US10636976B2Apr 28, 2020

Organic compound, light-emitting element, light-emitting device, electronic device, and lighting device

SEMICONDUCTOR ENERGY LAB1 citations62

RICOH KK

8 patents

ASM IP HOLDING BV

4 patents

SHIMIZU YOSHIYUKI

3 patents

TSURITANI SHOH

2 patents

KAWAKAMI YOSHIHIRO

1 patent

HAMADA MANABU

1 patent

Showing the top 50 of 90 patents by PatentIndex Score.