Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4834771 | Aqueous liquid dye composition of C.I. reactive blue ZI and caprolactam or N-methyl pyrrolidone | Noriaki Yamauchi, Kunihiko Imada | 1989-05-30 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4834771 | Aqueous liquid dye composition of C.I. reactive blue ZI and caprolactam or N-methyl pyrrolidone | Noriaki Yamauchi, Kunihiko Imada | 1989-05-30 |