Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7074268 | Pigment composition and printing ink containing the same | Ippei Imagawa, Takahiro Yuasa | 2006-07-11 |
| 6379451 | Pigment composition and aqueous pigment dispersion product using the same | Kenji Kitamura | 2002-04-30 |
| 6056814 | Pigment composition and aqueous pigment dispersion prepared therefrom | Mikiya Kato, Junichi Tsuchida | 2000-05-02 |
| 5622555 | Process for the production of dis-azo pigment | Yoshio Muramatsu, Hitoshi Maki | 1997-04-22 |
| 5034063 | Dispersant-containing disazo pigment composition | Yoshie Suzuki, Kenji Kitamura, Akimitsu Mochizuki | 1991-07-23 |
| 4221606 | Phthalocyanine pigment compositions | Takenori Funatsu, Yoichi Inuzuka, Tetsuo Mishina, Kenji Kitamura | 1980-09-09 |