Issued Patents 2005
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6979746 | (1,4-phenylene)bis(methylene) phosphonic acid esters and (1,4-phenylene)bis(methylene) triphenyl phosphonium salt compounds | Mari Ichimura, Shinichiro Tamura, Tadashi Ishibashi | 2005-12-27 |
| 6916552 | Organic electroluminescent device and display unit | Naoyuki Ueda, Tetsuo Shibanuma, Mari Ichimura, Shinichiro Tamura | 2005-07-12 |