Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8535432 | Porphyrazine coloring matter, ink composition containing the same and colored product | Takashi Yoneda, Kenji Ooshima, Akira Kawaguchi, Yuka Shishikura | 2013-09-17 |