Oblon, Spivak, McClelland, Maier & Neustadt, P.C.
Charge controlling agent for electrostatic image development, and toner and charge-imparting material employing it
 A charge controlling agent for electrostatic image development, which is a metallic compound of a compound of the formula (I): ##STR1## wherein each of A and R is a substituted or unsubstituted aromatic ring residue, and --O and --CONH--R are bonded to positions adjacent to each other on the aromatic ring residue A, or the formula (II): ##STR2## wherein each of A.sup.1, A.sup.2, R.sup.1 and R.sup.2 is a substituted or unsubstituted aromatic ring residue, n is an integer, and --O and --CONHR.sup.1, and --O and --CONH--R.sup.2, are bonded to positions adjacent to each other on the aromatic ring residues A.sup.1 and A.sup.2, respectively. 
Mitsubishi Chemical Corporation
C C G G
C07C C07C G03G G03G
inventional inventional inventional inventional
Osamu Masako Hitoshi Noriaki
Ando Takeuchi Ono Takahashi