Patents/Inventors

Keiji Okinaka

SodegauraJP6 patents

7 Patents

US124864522025
Organic Electroluminescent Element and Electronic Device
IDEMITSU KOSAN CO., Ltd.
0 cites
US123641602025
Organic Electroluminescent Element and Electronic Device
IDEMITSU KOSAN CO., Ltd.
0 cites
US122009612025
Organic Electroluminescence Element, Display Device, and Electronic Apparatus
IDEMITSU KOSAN CO., Ltd.
0 cites
US120775002024
Compound, Material for Organic Electroluminescent Elements, Organic Electroluminescent Element, and Electronic Device
IDEMITSU KOSAN CO., Ltd
0 cites
US119440092024
Compound, Material for Organic Electroluminescent Element, Organic Electroluminescent Element, and Electronic Device
IDEMITSU KOSAN CO., Ltd.
0 cites
US117390612023
Compound, Material for Organic Electroluminescent Elements, Organic Electroluminescent Element, and Electronic Device
IDEMITSU KOSAN CO., Ltd
0 cites
US117300522023
Light-emitting Device
Idemitsu Kosan Co., Ltd.
0 cites