Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5610208 | Water-absorbent agent, method for production thereof, and water-absorbent composition | Yorimichi Dairoku, Kinya Nagasuna, Yoshihiko Masuda, Nobuyuki Harada, Kunihiko Ishizaki | 1997-03-11 |