Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7232480 | Modified carbon black carbon black dispersion liquid and water base ink | Masayuki Momose, Miharu Kanaya, Sohko Itoh | 2007-06-19 |
| 7220304 | Modified carbon black dispersion liquid and water base ink containing the same | Masayuki Momose, Miharu Kanaya, Sohko Itoh | 2007-05-22 |
| 6468342 | Aqueous pigment dispersion and process for producing the same | Sohko Itoh, Nobuyuki Murai, Makiko Matsui | 2002-10-22 |
| 5795970 | Mixed disazo-dye composition and black aqueous ink composition containing the same that provides high grade image on print | Takashi Ono, Yoshihiro Sawatari, Masaki Sasaki, Miharu Kanaya, Hiroko Hayashi +2 more | 1998-08-18 |
| 5667571 | Solvent-based black ink composition | Takashi Ono, Yoshihiro Sawatari | 1997-09-16 |
| 5616174 | Ink composition and ink jet recording method using the same | Miharu Kanaya, Akio Owatari, Junko Takatsuna, Masahiro Yatake, Hiroko Hayashi +2 more | 1997-04-01 |
| 5486601 | Trisazo dye, and aqueous ink composition containing the same | Takashi Ono | 1996-01-23 |
| 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 |
| 5160504 | Method of dyeing leather with metal complex dyes comprised of metalizable azo compounds | Takashi Ono, Katsumi Fukuda, Minako Terasaki | 1992-11-03 |
| 5095100 | Metal complex dyes and preparation thereof | Takashi Ono, Katsumi Fukuda, Minako Terasaki | 1992-03-10 |
| 5034058 | Aqueous ink composition | Kazutoshi Akiyama, Takashi Ono | 1991-07-23 |
| 4666519 | Aqueous ink composition | Kazutoshi Akiyama, Takashi Ono | 1987-05-19 |