Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
August 10, 2010
Patent Application Number
11781866
Date Filed
July 23, 2007
Patent Primary Examiner
Patent abstract
An ink jet recording head includes a recording element substrate having an array of discharge ports and a side surface extending along an array direction of the discharge ports, and an opposite surface facing the side surface. A minimum distance is provided between the opposite surface and the side surface at least at a center portion of the side surface. Also, a distance greater than the minimum distance is provided between the opposite surface and the side surface at an end portion of the side surface in the array direction.
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