Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6638618 | Black composite iron oxide pigment, and paint and resin composition using the same | Kazuyuki Hayashi, Mineko Ohsugi, Hiroko Morii | 2003-10-28 |
| 6596071 | Organic and inorganic composite pigments, and paint and resin composition using the same | Kazuyuki Hayashi, Keisuke Iwasaki, Mineko Ohsugi, Hiroko Morii | 2003-07-22 |