KY

Kei YOSHIZAKI

IC Idemitsu Kosan Co.: 6 patents #239 of 1,237Top 20%
SE Seiko Epson: 3 patents #3,864 of 7,774Top 50%
Overall (All Time): #551,492 of 4,157,543Top 15%
9
Patents All Time

Issued Patents All Time

Showing 1–9 of 9 patents

Patent #TitleCo-InventorsDate
11723272 Organic electroluminescence element and electronic device Ryota Takahashi, Toshinari Ogiwara, Yuichiro Kawamura 2023-08-08
11618722 Compound, composition, organic electroluminescent element, and electronic appliance Masatoshi Saito, Kei Yoshida, Yuichiro Kawamura, Toshinari Ogiwara 2023-04-04
11424414 Organic electroluminescent element, electronic device, and compound Kei Yoshida, Masatoshi Saito, Toshinari Ogiwara, Yuichiro Kawamura 2022-08-23
11271164 Compound, composition, organic electroluminescent element and electronic device Masatoshi Saito, Kei Yoshida, Yuichiro Kawamura, Toshinari Ogiwara 2022-03-08
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
8895927 Detection device, sensor device and electronic apparatus 2014-11-25
8553023 Electro-optical device and electronic apparatus Hitoshi Ota 2013-10-08
8481940 Detection device, sensor device, and electronic apparatus 2013-07-09