Patents/Inventors

Ryoji Maeda

TokyoJP8 patents

6 Patents

US126107352026
Organic Electroluminescence Device and Electronic Apparatus
IDEMITSU KOSAN CO., Ltd.
0 cites
US125838642026
Organic Electroluminescent Element and Electronic Device
IDEMITSU KOSAN CO., Ltd.
0 cites
US125818502026
Organic Electroluminescence Element, Composition, Powder, Electronic Equipment, and Novel Compound
IDEMITSU KOSAN CO., Ltd.
0 cites
US124255502025
Intercom Device and Control System
AIPHONE CO., Ltd.
0 cites
US119033082024
Compound, Material for Organic Electroluminescent Element, Organic Electroluminescent Element, and Electronic Device
IDEMITSU KOSAN CO., Ltd.
0 cites
US117232662023
Organic Electroluminescent Element and Electronic Device
IDEMITSU KOSAN CO., Ltd.
0 cites