Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5290347 | Salt-forming type dye, and its concentrated solution composition and ink composition | Takashi Ono, Tatsuya Yagyu | 1994-03-01 |
| 5160504 | Method of dyeing leather with metal complex dyes comprised of metalizable azo compounds | Takashi Ono, Tatsuya Yagyu, Minako Terasaki | 1992-11-03 |
| 5095100 | Metal complex dyes and preparation thereof | Takashi Ono, Tatsuya Yagyu, Minako Terasaki | 1992-03-10 |