Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6589330 | Halogen-free green pigment composition | Shigeki Kato | 2003-07-08 |
| 5856398 | Aqueous pigment dispersion for light-shielding paper | Tetsuro Oizumi, Hisao Tanaka, Tsutomu Fujigamori | 1999-01-05 |
| 5427616 | Process for the production of copper phthalocyanine pigment composition | Yoshio Muramatsu, Shigeki Kato | 1995-06-27 |
| 4301049 | Method of producing an azo pigment suitable for use in a gravure printing ink and azo pigments produced thereby | Takenori Funatsu, Masuhiko Maejima, Yoichi Inuzuka | 1981-11-17 |