Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5212207 | Styrene-divinylbenzene copolymer having both amino and phosphonate groups | Yoshio Sato, Yoshihiro Nakai | 1993-05-18 |
| 5188737 | Method of removing nitrate ion from a solution containing nitrate and other anions | Yoshio Sato, Toshihiro Nakai | 1993-02-23 |