KY

Kei Yoshida

IC Idemitsu Kosan Co.: 4 patents #11 of 164Top 7%
ND Nitto Denko: 1 patents #107 of 281Top 40%
📍 Sodegaura, PA: #1 of 1 inventorsTop 100%
Overall (2022): #30,217 of 548,613Top 6%
5
Patents 2022

Issued Patents 2022

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
11517057 Mask Satoru Furuyama, Hajime Ooya 2022-12-06
11456425 Organic electroluminescent element, and electronic apparatus Toshinari Ogiwara, Masatoshi Saito, Yuichiro Kawamura 2022-09-27
11424414 Organic electroluminescent element, electronic device, and compound Masatoshi Saito, Toshinari Ogiwara, Kei YOSHIZAKI, Yuichiro Kawamura 2022-08-23
11271164 Compound, composition, organic electroluminescent element and electronic device Masatoshi Saito, Yuichiro Kawamura, Toshinari Ogiwara, Kei YOSHIZAKI 2022-03-08
11264576 Specifically substituted ladder type compounds for organic light emitting devices Yumiko Mizuki, Kiyoshi Ikeda, Masahiro Kawamura 2022-03-01