Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6617489 | Absorbent, absorbing product based thereon, and water-absorbing resin | Katsuyuki Wada, Kunihiko Ishizaki | 2003-09-09 |
| 6599989 | Water-absorbent agents containing polycarboxylic amine chelating agents | Katsuyuki Wada, Hiroko Ueda, Kinya Nagasuna, Koji Miyake, Yasuhiro Fujita +1 more | 2003-07-29 |