Issued Patents 1994
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5369132 | Method for producing a spherical acrylonitrile crosslinked copolymer | Junya Watanabe, Shintaro Sawada | 1994-11-29 |
| 5350523 | Anion exchange method | Masao Tomoi, Atsuo Kiyokawa, Hiromasa Ogawa, Teruo Onozuka | 1994-09-27 |
| 5314974 | Method for producing a spherical acrylonitrile crosslinked copolymer | Junya Watanabe, Shintaro Sawada | 1994-05-24 |