Issued Patents 1994
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5366543 | Alcohol-soluble dye and ink composition containing the same | Takashi Ono, Tetsui Akase | 1994-11-22 |
| 5340929 | Trisazo dye and dye composition containing the same | Takashi Ono, Yoshihiro Sawatari, Masaki Yonezawa | 1994-08-23 |
| 5336763 | Trisazo dye and dye composition containing the same | Takashi Ono, Yoshihiro Sawatari, Masaki Yonezawa | 1994-08-09 |
| 5326866 | Liquid azo dye and ink composition containing the same | Takashi Ono, Tetsui Akase | 1994-07-05 |
| 5290347 | Salt-forming type dye, and its concentrated solution composition and ink composition | Takashi Ono, Katsumi Fukuda | 1994-03-01 |
| 5281264 | Salt-forming type dye and ink composition | Takashi Ono, Tetsui Akase | 1994-01-25 |