KO

Keiji Okinaka

IC Idemitsu Kosan Co.: 1 patents #52 of 151Top 35%
Overall (2021): #375,493 of 548,734Top 70%
1
Patents 2021

Issued Patents 2021

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
11059781 Compound, material for organic electroluminescent elements, organic electroluminescent element, and electronic device Satomi TASAKI, Masahiro Kawamura, Toshinari Ogiwara, Hitoshi Kuma, Kei Yoshida 2021-07-13