Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5707747 | Amine compound and electro-luminescence device comprising same | Hiromitsu Tomiyama, Masahiko Oshino, Naoko Nakanishi, Mutsumi Suzuki, Masao Fukuyama +2 more | 1998-01-13 |
| 5639914 | Tetraaryl benzidines | Hiromitsu Tomiyama, Masahiko Oshino, Naoko Nakanishi | 1997-06-17 |