Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6817557 | Process for transporting, storing, and producing a particulate water-absorbent resin | Hiroyuki Kakita, Takumi Hatsuda, Yoshio Irie | 2004-11-16 |
| 6164455 | Process for classifying particulate hydrophilic polymer and sieving device | Hiroyuki Kakita, Sumio Okuda, Takumi Hatsuda | 2000-12-26 |