FIELD EMISSION DEVICE AND NANOFIBER MANUFACTURING DEVICE
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United States of America Patent
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Issued Date -
Sep 26, 2013
app pub date -
Apr 27, 2011
filing date -
Dec 6, 2010
priority date (Note) -
Abandoned
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Abstract
Disclosed herein is a field emission device which makes mass-production of nanofibers having satisfactory performance possible. The field emission device (20) includes a casing (100), a collector (150), a nozzle block (110) and a power supply (160). A positive electrode of the power supply (160) is connected to the collector (150), and a negative electrode of the power supply (160) is connected to the nozzle block (110) and the casing (100). When the collector (150) is viewed from the nozzle block (110), a periphery of an insulator (152) is closer to the outside of the device than a periphery of the collector (150). When the thickness of the insulator is ┌a┘ and the distance between the periphery of the insulator and the periphery of the collector is ┌b┘, both ┌a≧6 mm┘ and ┌a+b≧50 mm┘ are satisfied.
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