Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4804415 | Process for producing azo pigment | Ryuzo Ueno, Shigeru Ito, Shin-ya Fujimoto | 1989-02-14 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4804415 | Process for producing azo pigment | Ryuzo Ueno, Shigeru Ito, Shin-ya Fujimoto | 1989-02-14 |