Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6709097 | Ink jet recording medium | Takuya Nakao, Hiroyuki Fujii | 2004-03-23 |
| 6630213 | Recording medium excellent in ink absorptivity and process for its production, and process for producing silica-alumina composite sol | Hisao Inokuma, Hachirou Hirano, Toshiya Matsubara, Masako Wakabayashi, Yoshinori Kon | 2003-10-07 |
| 6623820 | Silica-alumina composite sol, processes for producing the same, and recording medium | Noriko Torimoto, Hachiro Hirano, Toshiya Matsubara, Shinichi Suzuki, Hisao Inokuma +1 more | 2003-09-23 |
| 6342293 | Alumina sol, alumina hydrate powder and processes for their production | Kenji Yamada, Hachiro Hirano, Toshiya Matsubara | 2002-01-29 |
| 6048470 | Alumina sol, alumina hydrate powder and processes for their production | Kenji Yamada, Hachiro Hirano, Toshiya Matsubara | 2000-04-11 |