KO

Keiji Okinaka

IC Idemitsu Kosan Co.: 2 patents #18 of 113Top 20%
Overall (2024): #146,096 of 561,600Top 30%
2
Patents 2024

Issued Patents 2024

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
12077500 Compound, material for organic electroluminescent elements, organic electroluminescent element, and electronic device Satomi TASAKI, Masahiro Kawamura, Toshinari Ogiwara, Hitoshi Kuma, Kei Yoshida 2024-09-03
11944009 Compound, material for organic electroluminescent element, organic electroluminescent element, and electronic device Keiichi YASUKAWA, Shota SAWANO, Toshinari Ogiwara, Takushi SHIOMI 2024-03-26