Issued Patents 2011
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7905431 | Forging punch, method of manufacturing liquid ejection head using the same, and liquid ejection head manufactured by the method | Fujio Akahane, Nagamitsu Takashima, Kazushige Hakeda, Ryoji Uesugi | 2011-03-15 |