Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4841037 | Amino sulfonaphtholtrisazo compounds and recording liquids containing the same | Tokuya Ohta, Masatsune Kobayashi, Yuko Suga, Konoe Miura, Hiroshi Takimoto | 1989-06-20 |