Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6471760 | Anthrapyridone compounds, water-based magenta ink composition, and method of ink-jet recording | Hiroyuki Matsumoto, Yasuo Murakami, Yasuo Shirasaki, Katsunori Fujii | 2002-10-29 |
| 6409810 | Water-soluble trisazo compounds, aqueous ink composition and colored article | Hiroaki Ono, Takashi Miyazawa, Yasuo Shirasaki, Isao Yamaguchi, Kazunobu Nagasaki | 2002-06-25 |