Inventor
HAMADA TAKAO
JP33 patents
⚠️ This page may combine multiple inventors who share the name “HAMADA TAKAO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SEMICONDUCTOR ENERGY LAB
22 patentsUS9412962B2Aug 9, 2016
Light-emitting element, light-emitting device, electronic device, and lighting device
SEMICONDUCTOR ENERGY LAB27 citations94
US10069076B2Sep 4, 2018
Light-emitting element, light-emitting device, electronic device, and lighting device
SEMICONDUCTOR ENERGY LAB12 citations92
US11043637B2Jun 22, 2021
Light-emitting element, light-emitting device, electronic device, and lighting device
SEMICONDUCTOR ENERGY LAB4 citations84
US10897012B2Jan 19, 2021
Light-emitting element, light-emitting device, electronic device, and lighting device
SEMICONDUCTOR ENERGY LAB4 citations84
US10418565B2Sep 17, 2019
Light-emitting element, light-emitting device, electronic device, lighting device, and organic compound
SEMICONDUCTOR ENERGY LAB7 citations84
US10141524B2Nov 27, 2018
Phosphorescent organometallic iridium complex, light-emitting element, light-emitting device, electronic device, and lighting device
SEMICONDUCTOR ENERGY LAB5 citations84
US9985221B2May 29, 2018
Light-emitting element, light-emitting device, electronic device, lighting device, and organic compound
SEMICONDUCTOR ENERGY LAB5 citations84
US9419237B2Aug 16, 2016
Organic compound, light-emitting element, light-emitting device, electronic device, and lighting device
SEMICONDUCTOR ENERGY LAB8 citations84
US9309458B2Apr 12, 2016
Phosphorescent organometallic iridium complex, light-emitting element, light-emitting device, electronic device, and lighting device
SEMICONDUCTOR ENERGY LAB12 citations84
US12127479B2Oct 22, 2024
Light-emitting element, light-emitting device, electronic device, lighting device, and organic compound
SEMICONDUCTOR ENERGY LAB1 citations73
US11800799B2Oct 24, 2023
Light-emitting element, light-emitting device, electronic device, lighting device, and organic compound
SEMICONDUCTOR ENERGY LAB1 citations73
US11552256B2Jan 10, 2023
Light-emitting element, light-emitting device, electronic device, lighting device, and organic compound
SEMICONDUCTOR ENERGY LAB1 citations73
US11072623B2Jul 27, 2021
Light-emitting element, display device, electronic device, and lighting device
SEMICONDUCTOR ENERGY LAB2 citations73
US9997725B2Jun 12, 2018
Heterocyclic compound, light-emitting element, light-emitting device, electronic device, and lighting device
SEMICONDUCTOR ENERGY LAB2 citations72
US9159934B2Oct 13, 2015
Organic material, light-emitting element, light-emitting device, electronic appliance, and lighting device
SEMICONDUCTOR ENERGY LAB2 citations63
US12295256B2May 6, 2025
Light-emitting element, light-emitting device, electronic device, and lighting device
SEMICONDUCTOR ENERGY LAB0 citations62
US11968889B2Apr 23, 2024
Light-emitting element, light-emitting device, electronic device, and lighting device
SEMICONDUCTOR ENERGY LAB0 citations62
US10355219B2Jul 16, 2019
Organic compound, light-emitting element, light-emitting device, electronic device, and lighting device
SEMICONDUCTOR ENERGY LAB1 citations62
US9059411B2Jun 16, 2015
Fluorene compound, light-emitting element, light-emitting device, electronic device, and lighting device
SEMICONDUCTOR ENERGY LAB3 citations62
US11522138B2Dec 6, 2022
Heterocyclic compound, light-emitting element, light-emitting device, electronic device, and lighting device
SEMICONDUCTOR ENERGY LAB0 citations61
US9825235B2Nov 21, 2017
Organic compound, light-emitting element, display module, lighting module, light-emitting device, display device, lighting device, and electronic device
SEMICONDUCTOR ENERGY LAB1 citations52
US10811617B2Oct 20, 2020
Heterocyclic compound, light-emitting element, light-emitting device, electronic device, and lighting device
SEMICONDUCTOR ENERGY LAB0 citations51
KAWASAKI STEEL CO
4 patentsUS4874427AOct 17, 1989
Methods for melting and refining a powdery ore containing metal oxides
KAWASAKI STEEL CO50 citations90
US4505745AMar 19, 1985
Methods of producing and using amorphous mother alloy
KAWASAKI STEEL CO18 citations71
US4397691AAug 9, 1983
Method for producing Fe-B molten metal
KAWASAKI STEEL CO11 citations71
US5131942AJul 21, 1992
Method for producing molten metal from powder state ore
KAWASAKI STEEL CO3 citations59