YK

Yuichiro Kawamura

IC Idemitsu Kosan Co.: 45 patents #19 of 1,237Top 2%
MC Mitsubishi Chemical: 3 patents #645 of 3,022Top 25%
HC Hamanakodenso Co.: 1 patents #15 of 42Top 40%
Overall (All Time): #53,823 of 4,157,543Top 2%
50
Patents All Time

Issued Patents All Time

Showing 25 most recent of 50 patents

Patent #TitleCo-InventorsDate
12396318 Organic EL display device, and electronic apparatus Satomi TASAKI, Tetsuya Masuda, Kengo Kishino, Kazuki Nishimura, Yuki Nakano 2025-08-19
12317740 Organic electroluminescence device and electronic apparatus Satomi TASAKI, Taro YAMAKI, Hiroaki ITOI, Yuki Nakano 2025-05-27
12029119 Organic electroluminescence element and electronic device Ryota Takahashi, Satomi TASAKI, Hidetsugu Ikeda, Yuki Nakano, Masakazu Funahashi +1 more 2024-07-02
12022728 Organic electroluminescent element and electronic device Ryota Takahashi, Tomoki Kato, Hirokatsu Ito, Masahiro Kawamura, Masakazu Funahashi +4 more 2024-06-25
11723272 Organic electroluminescence element and electronic device Kei YOSHIZAKI, Ryota Takahashi, Toshinari Ogiwara 2023-08-08
11653511 Organic EL light-emitting apparatus and electronic instrument 2023-05-16
11618722 Compound, composition, organic electroluminescent element, and electronic appliance Masatoshi Saito, Kei Yoshida, Toshinari Ogiwara, Kei YOSHIZAKI 2023-04-04
11600780 Organic electroluminescence device and electronic apparatus Satomi TASAKI, Taro YAMAKI, Hiroaki ITOI, Yuki Nakano 2023-03-07
11552251 Organic electroluminescent element and electronic device Ryota Takahashi, Tomoki Kato, Hirokatsu Ito, Masahiro Kawamura, Masakazu Funahashi +4 more 2023-01-10
11482675 Organic electroluminescence device and electronic apparatus Satomi TASAKI, Taro YAMAKI, Hiroaki ITOI, Yuki Nakano, Ryoji Maeda +2 more 2022-10-25
11456425 Organic electroluminescent element, and electronic apparatus Toshinari Ogiwara, Kei Yoshida, Masatoshi Saito 2022-09-27
11424414 Organic electroluminescent element, electronic device, and compound Kei Yoshida, Masatoshi Saito, Toshinari Ogiwara, Kei YOSHIZAKI 2022-08-23
11322711 Organic EL light emitting apparatus and electronic instrument Kazuki Nishimura 2022-05-03
11271164 Compound, composition, organic electroluminescent element and electronic device Masatoshi Saito, Kei Yoshida, Toshinari Ogiwara, Kei YOSHIZAKI 2022-03-08
11201297 Organic electroluminescence device and electronic device Kei YOSHIZAKI, Toshinari Ogiwara, Keiichi YASUKAWA, Kei Yoshida 2021-12-14
11060485 Control valve assembly Kousuke Shirai 2021-07-13
11043638 Organic electroluminescence device and electronic device Toshinari Ogiwara, Kei Yoshida 2021-06-22
10964891 Pyrene derivative, organic light-emitting medium, and organic electroluminescent element containing pyrene derivative or organic light- emitting medium Yumiko Mizuki, Hirokatsu Ito, Takeshi Ikeda, Hiroyuki Saito, Masahiro Kawamura 2021-03-30
10854838 Organic EL light emitting apparatus and electronic instrument Kazuki Nishimura 2020-12-01
10547009 Organic electroluminescent element, electronic device and compound Kei Yoshida, Ryohei Hashimoto, Toshinari Ogiwara, Masatoshi Saito 2020-01-28
RE47654 Organic electroluminescence device Masahiro Kawamura, Hitoshi Kuma, Hirokatsu Ito 2019-10-22
10351765 Organic electroluminescence element and electronic device Toshinari Ogiwara 2019-07-16
10125310 Organic electroluminescence element and electronic device Toshinari Ogiwara 2018-11-13
10014476 Pyrene derivative, organic light-emitting medium, and organic electroluminescent element containing pyrene derivative or organic light-emitting medium Yumiko Mizuki, Hirokatsu Ito, Takeshi Ikeda, Hiroyuki Saito, Masahiro Kawamura 2018-07-03
9997717 Organic electroluminescence device and electronic device Toshinari Ogiwara 2018-06-12