YK

Yasushi KOISHIKAWA

Samsung: 10 patents #13,191 of 75,807Top 20%
NC NS Sumikin Chemical: 2 patents #40 of 144Top 30%
Overall (All Time): #394,582 of 4,157,543Top 10%
12
Patents All Time

Issued Patents All Time

Showing 1–12 of 12 patents

Patent #TitleCo-InventorsDate
12378468 Organometallic compound, organic light-emitting device including the same and electronic apparatus including the organic light-emitting device Kyuyoung Hwang, Byungjoon Kang, Seungyeon Kwak, Kum Hee Lee, Aram Jeon +4 more 2025-08-05
12240863 Organometallic compound, organic light-emitting device including the same, and electronic apparatus including the organic light-emitting device Ohyun Kwon, Aram Jeon, Sangho Park, Virendra Kumar RAI, Myungsun Sim +5 more 2025-03-04
12101995 Organometallic compound, organic light-emitting device including the same, and electronic apparatus including the organic light-emitting device Yong Joo Lee, Byungjoon Kang, Shingo Ishihara, Jeoungin Yi, Byoungki Choi +1 more 2024-09-24
12069940 Organometallic compound, organic light-emitting device including the same and electronic apparatus including the organic light-emitting device Kyuyoung Hwang, Byungjoon Kang, Seungyeon Kwak, Kum Hee Lee, Aram Jeon +4 more 2024-08-20
12010909 Organometallic compound, organic light-emitting device including the same and electronic apparatus including the organic light-emitting device Kyuyoung Hwang, Byungjoon Kang, Seungyeon Kwak, Kum Hee Lee, Aram Jeon +4 more 2024-06-11
11800801 Organic light-emitting device Seokhwan Hong, Myungsun Sim, Seungyeon Kwak, Hyun Koo, Sangdong Kim +7 more 2023-10-24
11760769 Composition and organic light-emitting device including the same Banglin Lee, Dongmin Kang, Soyeon Kim, Jiyoun Lee, Yongsuk Cho +7 more 2023-09-19
11367837 Organic light-emitting device Myungsun Sim, Sooghang IHN, Joonghyuk Kim, Jongsoo Kim, Hasup Lee +2 more 2022-06-21
11124521 Condensed cyclic compound and organic light-emitting device including the same Soonok Jeon, Hiroshi Miyazaki, Yeonsook Chung, Kyungdoc Kim, Youngmin Nam +3 more 2021-09-21
10026931 Method of fabricating white organic light-emitting device by using electrospraying Hiroshi Miyazaki 2018-07-17
8945726 Polymer for organic electroluminescent element, and organic electroluminescent element using the same Hiroshige Tanaka, Tohru Asari, Kazuto Shiraishi, Hiroyuki Hayashida, Kazuaki Yoshimura +1 more 2015-02-03
8795852 Organic electroluminescent device with host materials having same or similar IP, EA and T1 values Tohru Asari, Hiroyuki Hayashida, Kazuto Shiraishi, Takayuki Shimizu, Kazuaki Yoshimura 2014-08-05