Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4317682 | Pigment compositions and use thereof | Hiromitsu Katsura, Shigeyuki Ehashi, Junichi Tsuchida | 1982-03-02 |
| 4310359 | Pigment compositions | Shigeyuki Ehashi, Junichi Tsuchida, Hiromitsu Katsura | 1982-01-12 |