Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6817557 | Process for transporting, storing, and producing a particulate water-absorbent resin | Tatsuo Maruo, Takumi Hatsuda, Yoshio Irie | 2004-11-16 |
| 6164455 | Process for classifying particulate hydrophilic polymer and sieving device | Tatsuo Maruo, Sumio Okuda, Takumi Hatsuda | 2000-12-26 |
| 5369148 | Method for continuous agglomeration of an absorbent resin powder and apparatus therefor | Hitoshi Takahashi, Yoshio Irie, Teruaki Fujiwara, Kazumi Akihisa | 1994-11-29 |