Issued Patents 1994
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5350820 | Butadienesulfonic acid or isoprenesulfonic acid copolymer | Hisao Ono, Tatuo Uekawa, Katsuhiro Ishikawa | 1994-09-27 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5350820 | Butadienesulfonic acid or isoprenesulfonic acid copolymer | Hisao Ono, Tatuo Uekawa, Katsuhiro Ishikawa | 1994-09-27 |