Internal combustion engine distributor having oxidized electrodes or terminals

A distributor for an internal combustion engine, containing an apparatus for suppressing noise, comprising:

• a distributor rotor which is electrically connected to a high voltage generator included in an ignition circuit of the internal combustion engine, said rotor comprising an electrode;
• a plurality of stationary terminals, each of which comprises an electrode, is electrically connected to a corresponding spark plug, and is arranged along a circular locus defined by the rotating distributor rotor with a discharging gap between the electrodes of the terminals and the electrode of the distributor rotor, and the surface of at least one of the electrodes of the distributor rotor and the stationary terminals is formed by an electrically high resistive layer composed of a member selected from the group consisting of silicon dioxide, copper oxide, aluminum oxide and invar oxide.