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发明授权
US07004569B2 Electrothermal converting element board, ink jet printing head provided with electrothermal converting element board and ink jet printing apparatus using the same 失效
电热转换元件板，具有电热转换元件板的喷墨打印头和使用其的喷墨打印设备

Electrothermal converting element board, ink jet printing head provided with electrothermal converting element board and ink jet printing apparatus using the same
摘要：
An individual electrode layer electrically connected to an individual electrode layer having an opening is formed beneath a heater layer and a common electrode layer along an ink flow path.
摘要（中）：

电连接到具有开口的单个电极层的单个电极层沿着墨水流路形成在加热器层和公共电极层的下方。

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