Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5624967 | Water-absorbing resin and process for producing same | Kazuhisa Hitomi, Takumi Hatsuda | 1997-04-29 |
| 5599763 | Absorbent material, absorbent body, and method for production thereof | Nobuyuki Harada, Kazumasa Kimura | 1997-02-04 |