Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10889112 | Liquid ejection head and manufacturing method thereof | Koichi Omata | 2021-01-12 |
| 10889113 | Recording element board, liquid ejection apparatus and method of manufacturing recording element board | Ryoji Oohashi, Tsubasa Funabashi, Koichi Omata, Hideo Tamura, Yohei Osuki | 2021-01-12 |