Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4797502 | Sulfonic acid ester derivatives and process for preparing same | Setsuro Fujii, Kazuo Ogawa, Toshihiro Hamakawa | 1989-01-10 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4797502 | Sulfonic acid ester derivatives and process for preparing same | Setsuro Fujii, Kazuo Ogawa, Toshihiro Hamakawa | 1989-01-10 |