KO

Keiji Okinaka

IC Idemitsu Kosan Co.: 2 patents #27 of 126Top 25%
Overall (2020): #152,063 of 565,922Top 30%
2
Patents 2020

Issued Patents 2020

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
10851055 Compound, material for organic electroluminescent elements, organic electroluminescent element, and electronic device Satomi TASAKI, Masahiro Kawamura, Toshinari Ogiwara, Hitoshi Kuma, Kei Yoshida 2020-12-01
10590080 Compound, material for organic electroluminescent elements, organic electroluminescent element, and electronic device Satomi TASAKI, Masahiro Kawamura, Toshinari Ogiwara, Hitoshi Kuma, Kei Yoshida 2020-03-17