Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7976139 | Liquid ejection head and liquid ejection apparatus | Masakazu Okuda | 2011-07-12 |
| 7971981 | Liquid circulation apparatus, image forming apparatus and liquid circulation method | Kanji Nagashima, Tsutomu Kusakari | 2011-07-05 |