Issued Patents All Time
Showing 1–9 of 9 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 |
| 7363795 | Guided punching apparatus | Fujio Akahane, Nagamitsu Takashima, Kazushige Hakeda, Ryoji Uesugi | 2008-04-29 |
| 7194886 | Method for forging plate and method for manufacturing a liquid ejection head | Fujio Akahane, Nagamitsu Takashima, Kazushige Hakeda, Ryoji Uesugi | 2007-03-27 |
| 7165433 | Method of manufacturing a chamber plate for a liquid ejection head | Fujio Akahane, Nagamitsu Takashima, Kazushige Hakeda, Ryoji Uesugi | 2007-01-23 |
| 7127929 | Forging work method | Fujio Akahane, Nagamitsu Takashima, Kazushige Hakeda, Ryoji Uesugi | 2006-10-31 |
| 7052119 | Liquid ejection head, and method of manufacturing the same | Fujio Akahane, Nagamitsu Takashima, Kazushige Hakeda, Ryoji Uesugi | 2006-05-30 |
| 7040134 | Punch for forging a liquid ejection head | Fujio Akahane, Nagamitsu Takashima, Kazushige Hakeda, Ryoji Uesugi | 2006-05-09 |
| 7021749 | Liquid ejection head, and method of manufacturing the same | Fujio Akahane, Nagamitsu Takashima, Kazushige Hakeda, Ryoji Uesugi | 2006-04-04 |
| 6997027 | Forging punch | Fujio Akahane, Nagamitsu Takashima, Kazushige Hakeda, Ryoji Uesugi | 2006-02-14 |