KY

Kei YOSHIZAKI

IC Idemitsu Kosan Co.: 2 patents #19 of 151Top 15%
Overall (2021): #140,853 of 548,734Top 30%
2
Patents 2021

Issued Patents 2021

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
11201297 Organic electroluminescence device and electronic device Toshinari Ogiwara, Yuichiro Kawamura, Keiichi YASUKAWA, Kei Yoshida 2021-12-14
11189803 Organic electroluminescent element and electronic device containing the organic electroluminescent element Toshinari Ogiwara 2021-11-30