Issued Patents 2023
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11613129 | Aqueous ink, ink cartridge and ink jet recording method | Daiji Okamura, Naotoshi Miyamachi, Hiromitsu Kishi, Keisuke Inui, Hirohiko Yuasa | 2023-03-28 |
| 11584864 | Aqueous ink, ink cartridge, ink jet recording method and method for producing aqueous ink | Toshiyuki Umesato, Katsuhiro Hayashi, Tsuyoshi Kasai | 2023-02-21 |
| 11549027 | Aqueous ink, ink cartridge, ink jet recording method and method for producing aqueous ink | Toshiyuki Umesato, Katsuhiro Hayashi, Tsuyoshi Kasai | 2023-01-10 |