Issued Patents 2002
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6471766 | Pigment dispersants and pigment compositions containing the same | Shigeru Ohki, Takayuki Soga, Kazutaka Aoki, Hisao Okamoto, Hiroaki Saikatsu +1 more | 2002-10-29 |
| 6468341 | Pigment compositions, production process thereof, colorants, and colored articles | Nobuto Wada, Kazutaka Aoki, Yutaka Nakagawa, Michiei Nakamura | 2002-10-22 |
| 6368399 | Composite pigments, coloring compositions, and image recording substances | Masahiko Aoba, Yukio Kanbara, Shigeru Takarada, Kazutaka Aoki, Keiji Nakajima | 2002-04-09 |