Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11926741 | Method for producing quinacridone solid-solution pigment, pigment dispersion, and ink-jet ink | Sachio Yoshikawa | 2024-03-12 |
| 11773267 | Method for producing quinacridone solid solution pigment, pigment dispersion, and inkjet ink | Toshiyuki Hitotsuyanagi, Sachio Yoshikawa, Satoshi Minami | 2023-10-03 |
| 11535755 | Method for producing quinacridone solid solution pigment, pigment dispersion, and inkjet ink | Toshiyuki Hitotsuyanagi, Sachio Yoshikawa, Satoshi Minami | 2022-12-27 |
| 7993446 | Dispersing agent for organic pigment and use thereof | Hiroaki Saikatsu, Hiromitsu Yanagimoto, Michiei Nakamura | 2011-08-09 |
| 7393404 | Pigment dispersants and their use | Hiroaki Saikatsu, Hiromitsu Yanagimoto, Kazuhito Ooki, Yutaka Miura, Shigeru Sakamoto +2 more | 2008-07-01 |
| 7347894 | Pigment dispersants and their use | Hiromitsu Yanagimoto, Hiroaki Saikatsu, Shigeru Sakamoto, Akio Yoshida, Michiei Nakamura | 2008-03-25 |