Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6699423 | Ink wastage absorber and ink supporter | Yoshihiro Katsumata | 2004-03-02 |
| 6337354 | Ink wastage absorber and ink supporter | Yoshihiro Katsumata | 2002-01-08 |
| 6045741 | Preparation of flexible polyurethane foam | Noriyuki Yamaguchi, Hajime Hasegawa | 2000-04-04 |
| 5550169 | Preparation of water-impermeable polyurethane foam | Tatsuo Yata | 1996-08-27 |