Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7419537 | Phthalocyanine colorant and use thereof for ink-jet printing | Takafumi Fujii, Hirokazu Kitayama | 2008-09-02 |
| 7034149 | Cyan dye mixture, water-based cyan ink composition, and method of ink-jet recording | Kitayama Hirokazu, Takafumi Fujii, Junji Otani, Junko Yoshioka, Yasuo Shirasaki | 2006-04-25 |