inventors have confirmed that the carbon nano particle of the present invention has a unique stucture formed by planar and curved graphene sheets and has unique electric properties as described below 0035 fig6 a and 6 b are epr electron paramagnetic resonance data of noncrystalline carbon soot and the carbon nano particles of the present invention respectively both fig6 a and 6 b show the existences of a peak at 4k while only fig6 a noncrystalline carbon exhibits a peak at 90k since the electron magnetogyric ratio is about 1000 times larger than that of atom nucleus the electron spin resonance frequency ghz is about 1000 times higher than the nuclear magnetic resonance frequency mhz at a comparable intensity ca 1t of magnetic field furthermore in case of electrons of an atom energy levels thereof are each determined by the total angular momentum derived from the combination of orbital angular momentum and spin angular momentum and resonance may occur between the levels split by a magnetic field accordingly resonance may occur when the total angular momentum of electron is not zero 0 this resonance is called electron paramagnetic resonance epr which is to be distinguished from electron spin resonance and both of them are included in the term electron magnetic resonance emr electron magnetic resonance is applied to detect the magnetogyric ratio of electrons and to distinguish the atom type for noncrystalline carbon particles the ratio of sp2 and sp3 bonds becomes an important parameter for distinction sp2 bond serving as a parameter.