Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5160504 | Method of dyeing leather with metal complex dyes comprised of metalizable azo compounds | Takashi Ono, Tatsuya Yagyu, Katsumi Fukuda | 1992-11-03 |
| 5095100 | Metal complex dyes and preparation thereof | Takashi Ono, Tatsuya Yagyu, Katsumi Fukuda | 1992-03-10 |