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US 3946398

How Piezoelectric Inkjet Printing Works

A 1970 patent describing how to print images by using electrical pulses to bend a tiny crystal plate, squeezing individual ink drops out of a nozzle on demand.

Statusexpired

Granted1976

Expires1990

Claims6

Forward citations448

Prior art6

AssigneeSILONICS Inc

InventorsStephan B. Sears, Edmond L. Kyser

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