Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7108897 | Dye type polarizing plate | Shoji Oiso, Kumiko Ishii, Yoshitaka Kajiwara | 2006-09-19 |
| 7056374 | Aqueous ink composition, water-soluble dye composition and ink-jet recording method | Hirokazu Kitayama, Yasuo Shirasaki | 2006-06-06 |
| 6790490 | Dye type polarizing plate | Shoji Oiso, Kumiko Ishii, Yoshitaka Kajiwara | 2004-09-14 |
| 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 |
| 6143062 | Water-soluble disazo compounds, aqueous ink compositions, and colored articles | Takashi Miyazawa, Isao Yamaguchi, Yasuo Shirasaki, Junko Yoshioka | 2000-11-07 |
| 6086640 | Formazan compounds and method of dyeing therewith | Eiichi Ogawa, Shin-ichi Namba | 2000-07-11 |