US Patent 11179934 Liquid ejection head and method of manufacturing the same
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Patent abstract
A liquid ejection head includes a substrate provided with an energy-generating element, an ejection orifice forming member that is formed on the substrate and includes an ejection orifice from which liquid is ejected, a reinforcing rib provided in the ejection orifice forming member, and a recess that is formed in the substrate and forms a part of a flow path of liquid, wherein the reinforcing rib is disposed in the inside of the recess.
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Patent Jurisdiction
Patent Number
111799340
Date of Patent
November 23, 2021
0Patent Application Number
167879040
Date Filed
February 11, 2020
0Official Website
Patent Primary Examiner
Edits on 26 Sep, 2022
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Infobox
Is a
Patent Jurisdiction
Patent Number
111799340
Date of Patent
November 23, 2021
0Patent Application Number
167879040
Date Filed
February 11, 2020
0Official Website
Patent Primary Examiner
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US Patent 11179934 Liquid ejection head and method of manufacturing the same
Infobox
Is a
Patent jurisdiction
Patent number
11179934
Date of patent
November 23, 2021
Patent application number
16787904
Date Filed
February 11, 2020
Patent primary examiner
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