Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12274168 | Compound, material for organic electroluminescent element, organic electroluminescent element, and electronic appliance | Keiichi YASUKAWA, Hiromi Nakano, Takushi SHIOMI | 2025-04-08 |
| 12232419 | Compound, and organic electroluminescence device and electronic apparatus using the same | Ryota Takahashi, Keita SEDA | 2025-02-18 |
| 11944009 | Compound, material for organic electroluminescent element, organic electroluminescent element, and electronic device | Keiichi YASUKAWA, Keiji Okinaka, Toshinari Ogiwara, Takushi SHIOMI | 2024-03-26 |
| 11482681 | Compound, material for organic electroluminescence element, organic electroluminescence element, and electronic device | Keiichi YASUKAWA, Keiji Okinaka, Toshinari Ogiwara, Takushi SHIOMI | 2022-10-25 |