Issued Patents 2020
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10844235 | Ink, method of manufacturing ink, and ink cartridge | Yuusuke Koizuka, Kazukiyo Nagai, Tomoyuki Shimada, Shigeyuki Harada, Akihiko Matsuyama +3 more | 2020-11-24 |
| 10836171 | Ink and cleaning liquid set, inkjet printing device, inkjet printing method, and method of cleaning nozzle surface of inkjet discharging head | Amika Sagara, Yuuki Yokohama, Masaki Kudo, Yuusuke Koizuka, Akihiko Matsuyama | 2020-11-17 |
| 10807377 | Ink, ink cartridge, image forming method, and printed matter | Takuya Yamazaki, Shigeyuki Harada, Takuya Saiga, Hiroshi Gotou, Yuusuke Koizuka | 2020-10-20 |