Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7902402 | Tetramine compound and organic EL device | Shigeru Kusano, Makoto Koike, Atsushi Takesue | 2011-03-08 |
| 7897816 | Tetramine compound and organic EL device | Shigeru Kusano, Makoto Koike, Atsushi Takesue | 2011-03-01 |