US Patent 7771020 Ink jet recording head
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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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US Patent 07771020 Ink jet recording head US Patent 7771020 Ink jet recording head
Infobox
Patent Number
0777102000
Patent Number
777102000
Edits on 31 Mar, 2023
Golden AI
Infobox
Is a
Patent Jurisdiction
Patent Number
077710200
Date of Patent
August 10, 2010
0Patent Application Number
117818660
Date Filed
July 23, 2007
0Official Website
Patent Primary Examiner
Edits on 24 Sep, 2022
Golden AI
Infobox
Is a
Patent Jurisdiction
Patent Number
077710200
Date of Patent
August 10, 2010
0Patent Application Number
117818660
Date Filed
July 23, 2007
0Official Website
Patent Primary Examiner
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US Patent 07771020 Ink jet recording head
Infobox
Is a
Patent jurisdiction
Patent number
07771020
Date of patent
August 10, 2010
Patent application number
11781866
Date Filed
July 23, 2007
Patent primary examiner
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