Issued Patents 2023
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11584864 | Aqueous ink, ink cartridge, ink jet recording method and method for producing aqueous ink | Katsuhiro Hayashi, Tsuyoshi Kasai, Naofumi Shimomura | 2023-02-21 |
| 11549027 | Aqueous ink, ink cartridge, ink jet recording method and method for producing aqueous ink | Naofumi Shimomura, Katsuhiro Hayashi, Tsuyoshi Kasai | 2023-01-10 |