Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4804417 | Process for producing dioxazine violet pigment | Taira Fujita, Yoshiaki Hayashi | 1989-02-14 |
| 4785091 | Process for producing copper phthalocyanine pigment | Taira Fujita, Toshiaki Kishimoto | 1988-11-15 |