Patent ID: 8653177

Claim:
A semiconductive resin composition containing two or more kinds of conductive fillers, wherein the difference in threshold values of percolation between at least two kinds of the conductive fillers is within a range of 10 to 50 mass %, and the volume resistivity of the semiconductive resin composition is 10 6 to 10 12 Ωcm, wherein the conductive fillers comprise conductive filler (A) having a threshold value of percolation of 2 to 10 mass % and conductive filler (B) having a threshold value of percolation of 13 to 60 mass %, the threshold value of percolation being obtained in adding a single conductive filler to a resin, wherein conductive filler (A) consists of carbon fibers having a tubular structure obtained through parallel accumulation of thermally decomposed carbon on hollow tubes, wherein the semiconductive resin composition comprises from 1 to 10 mass % of conductive filler (A) and from to 19 mass % of conductive filler (B) in thermoplastic resin, wherein the semiconductive resin composition comprises a region where change in volume resistivity of the resin complex is 10 X+1 Ωcm (2≦X≦11) in an extent that the total amount of the conductive fillers in the resin is within a range of 10 to 20 mass %.