Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4521793 | Coloring method and color-forming material | Kazuo Kabashima | 1985-06-04 |
| 4318850 | Carboxamide type azomethine pigment | Fumihiko Yamamoto, Mitsuru Katayose, Teruyuki Misumi | 1982-03-09 |