KO

Keiji Okinaka

IC Idemitsu Kosan Co.: 1 patents #56 of 164Top 35%
Overall (2022): #374,675 of 548,613Top 70%
1
Patents 2022

Issued Patents 2022

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
11482681 Compound, material for organic electroluminescence element, organic electroluminescence element, and electronic device Keiichi YASUKAWA, Shota SAWANO, Toshinari Ogiwara, Takushi SHIOMI 2022-10-25