Issued Patents 2011
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7985287 | Anthrapyridone compound or a salt thereof, magenta ink composition containing the anthrapyridone compound and colored product | Yasuo Murakami, Yutaka Ishii, Hiroyuki Matsumoto | 2011-07-26 |
| 7909926 | Ink composition and colored product | Hiroyuki Matsumoto, Yutaka Ishii, Makiko Kogo | 2011-03-22 |
| 7871464 | Anthrapyridone compound or salt thereof, magenta ink composition and colored product | Daisuke Ono, Yutaka Ishii, Hiroyuki Matsumoto | 2011-01-18 |