Issued Patents 2005
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6929361 | Anthrapyridone compounds, water-base magenta ink compositions and method of ink-jet recording | Hiroyuki Matsumoto, Takafumi Fujii, Yasuo Shirasaki | 2005-08-16 |
| 6902607 | Anthrapyridone compound, water-based magenta ink composition, and method of ink-jet recording | Hiroyuki Matsumoto, Yasuo Shirasaki | 2005-06-07 |