Issued Patents 2003
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6630213 | Recording medium excellent in ink absorptivity and process for its production, and process for producing silica-alumina composite sol | Katsumasa Nakahara, Hisao Inokuma, Hachirou Hirano, Toshiya Matsubara, Masako Wakabayashi | 2003-10-07 |