RN

Ryo Naraoka

IC Idemitsu Kosan Co.: 5 patents #272 of 1,237Top 25%
Overall (All Time): #994,657 of 4,157,543Top 25%
5
Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
9774003 Organic electroluminescent element and electronic instrument 2017-09-26
9368731 Organic electroluminescence device Hiroyuki Saito, Tomoki Kato, Masaki Numata 2016-06-14
9184414 Organic electroluminescent element and lighting device Masahiko Fukuda, Hitoshi Kuma 2015-11-10
9095033 Organic electroluminescence element Hitoshi Kuma, Hiroyuki Saito, Chishio Hosokawa 2015-07-28
8742526 Photoelectric conversion device Hiroyuki Iwabuchi, Chishio Hosokawa 2014-06-03