Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9714357 | Phthalocyanine pigment composition and method for producing the same, and ink | Hidehiro Otake, Taichi Hashiguchi | 2017-07-25 |
| 7982019 | Method for producing dry organic pigment | Akihiro Ogata | 2011-07-19 |
| 7708824 | C. I. pigment red 57:1 and production process thereof | Akihiro Ogata, Keiko Otsubo | 2010-05-04 |
| 5803962 | Disazo pigment composition and printing ink | Sadayuki Tomioka, Shigeto Aoki, Hirohito Ando | 1998-09-08 |
| 5084106 | Monoazo lake pigment | Hirohito Ando | 1992-01-28 |