Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5286855 | Process for producing polyhalogenated phthalocyanine | Yoshiyuki Nonaka, Junichi Tsuchida, Michichika Hikosaka | 1994-02-15 |
| 5282896 | Process for producing phthalocyanine pigment composition containing highly halogenated different-metalo-phthalocyanine | Junichi Tsuchida, Michichika Hikosaka, Yoshiyuki Nonaka | 1994-02-01 |