Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4948884 | Process for the halogenation of copper phthalocyanine | Yoshiyuki Nonaka, Junichi Tsuchida, Masami Shirao, Michichika Hikosaka | 1990-08-14 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4948884 | Process for the halogenation of copper phthalocyanine | Yoshiyuki Nonaka, Junichi Tsuchida, Masami Shirao, Michichika Hikosaka | 1990-08-14 |