Abstract: A process for producing a tape-like material uniformly containing highly pure single-walled or multi-walled carbon nanotubes and a tape-like material produced thereby; a high-performance field emission electrode including the tape-like material; and a process for producing the field emission electrode. The carbon nanotubes are synthesized by arc discharge, wherein an inert gas or inert gas-containing mixed gas is jetted onto a cathode having a carbon material from the inside of a hollow electrode (11) used as an anode, and simultaneously an arc is generated to form a path of arc discharge along a stream of the gas. At the same time, by relative movement of the electrodes, the cathode spot of the arc is moved on the cathode, and the synthesized carbon nanotubes are formed into a tape.

Abstract: Disclosed is a moving toy including: a shell body including a plurality of shell pieces placed side by side adjacent shell pieces of which are connected with each other to be capable of bending and stretching, the shell body being configured so as to capable of being both in a shrinking state in which the shell body curls up and in a unfolding state in which the shell body is released by bending and stretching; and a forcing member to allow the shell body to be in the shrinking state by an urging force, wherein the shell body includes an unfolding member on one surface side of the shell body, and the unfolding member is configured to push the shell body from the one surface side against the urging force by the forcing member to allow the shell body to be temporary and intermittently in the unfolding state.

Abstract: A process for producing a tape-like material uniformly containing highly pure single-walled or multi-walled carbon nanotubes with a high density highly pure single-walled or multi-walled carbon nanotubes; a high-performance field emission electrode including the tape-like material; and a process for producing the field emission electrode. For synthesis of carbon nanotubes by arc discharge, an inert gas or inert gas-containing mixed gas is jetted onto a cathode (2) comprising a carbon material from the inside (11a) of a hollow electrode (11) used as an anode, and simultaneously an arc is generated to form a path of arc discharge along the stream of the gas. Consequently, the cathode spot is prevented from irregularly moving, and thus highly pure carbon nanotubes can be produced. At the same time, by relatively moving both electrodes so as to move the cathode spot of the arc (3) on cathode, the synthesized carbon nanotubes are formed into a tape.