Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5296325 | Dicyanoimidazole compounds usable as colorants for magenta toners, colored resins, colored molded resin memers and color filters | Tohru Tamura | 1994-03-22 |
| 5233028 | Dicyanoimidazole compound derivative, and magenta toner, for colored resin, colored molded resin member and a color filter incorporating it | Tohru Tamura | 1993-08-03 |