A method for manufacturing a nanotube cartridge including the steps of: adhering
numerous nanotubes to a surface of a holder, disposing a knife edge at an inclination
to the surface of the holder so that the knife edge is raised with its tip end
being in contact with the surface of the holder, and collecting the nanotubes to
near the tip end of the knife edge by moving the knife edge in a direction opposite
from the tip end with the tip end being kept in contact with the surface, thus
allowing the nanotubes to be arranged on the tip end of the knife edge with the
nanotubes protruding from the tip end. When adhering the nanotubes to the holder
surface, nanotubes are merely put in a vessel, the holder is placed in the vessel,
and then the vessel is vibrated.
