Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11741839 | Traffic safety assistance device, mobile information terminal, and program | — | 2023-08-29 |
| 10916711 | Spiro compound having azafluorene ring structure, light-emitting material, and organic electroluminescent device | Chihaya Adachi, Takuma Yasuda, Tetsuya Nakagawa, Katsuyuki Shizu | 2021-02-09 |
| 9564600 | Compound having an indolocarbazole ring structure and organic electroluminescent device | Norimasa Yokoyama, Makoto Nagaoka, Sawa Izumi, Shuichi Hayashi | 2017-02-07 |
| 9553272 | Organic electroluminescent device | Norimasa Yokoyama, Eiji Takahashi, Shuichi Hayashi, Daizou Kanda | 2017-01-24 |