Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6417288 | Method of manufacturing polyelectrolyte | Tsutomu Noguchi, Haruo Watanabe, Miyuki Kuromiya | 2002-07-09 |
| 6348545 | Water-absorbing resin and manufacturing method | Haruo Watanabe, Tsutomu Noguchi | 2002-02-19 |