Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Hiroshi Mataki0
Date of Patent
January 5, 2010
0Patent Application Number
117091930
Date Filed
February 22, 2007
0Patent Primary Examiner
Patent abstract
The liquid ejection head has an ejection unit which includes: a nozzle ejecting a droplet of liquid; a pressure chamber connected to the nozzle; a displacement generating device which changes a volume of the pressure chamber; and a supply flow channel which is connected to the pressure chamber and supplies the liquid to the pressure chamber, wherein a resonance frequency f (kHz) of the ejection unit and an ejection speed v (m/s) of the droplet ejected by the nozzle satisfy a following relationship: f>31×v+80.
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