NOVELTY - A complex oxide sintered compact (2) comprises zinc, aluminum, titanium and oxygen. The sintered compact contains particles comprising zinc oxide as a main component, and having hexagonal wurtzite structure with average particle diameter of 20 mu m or less, and particles containing aluminum and titanium and having zinc titanate type similar structure with average particle diameter of 5 mu m or less. The sintered compact does not contain particles containing aluminum acid zinc spinel oxide structure in which zinc and aluminum form into solid solution.    USE - Complex oxide sintered compact for sputtering target used for forming transparent oxide conductive film (all claimed) for electrode of light receiving elements such as liquid crystal display element and solar cell. Can also be used for heat ray reflective film and antistatic film for construction material, motor vehicle, transparent heat generating material for frozen showcase.    ADVANTAGE - The complex oxide sintered compact forms film with excellent light transmittance and durability. The solar cell with excellent photoelectric conversion efficiency is provided.    DETAILED DESCRIPTION - A complex oxide sintered compact comprises zinc, aluminum, titanium and oxygen. The sintered compact contains particles comprising zinc oxide as a main component, and having hexagonal wurtzite structure with average particle diameter of 20 mu m or less, and particles containing aluminum and titanium and having zinc titanate (ZnTiO3 and/or Zn2Ti3O8) type similar structure with average particle diameter of 5 mu m or less. The sintered compact does not contain particles containing aluminum acid zinc spinel oxide structure in which zinc and aluminum form into solid solution. The atomic ratio of sum total of aluminum and titanium with respect to total amount of zinc, aluminum and titanium is 0.004-0.055, the atomic ratio of aluminum with respect to total amount of zinc, aluminum and titanium is 0.002-0.025 and atomic ratio of titanium with respect to total amount of zinc, aluminum and titanium is 0.002-0.048. INDEPENDENT CLAIMS are included for the following:    (1) manufacture of the complex oxide sintered compact; and    (2) manufacture of the transparent oxide conductive film.    DESCRIPTION OF DRAWING(S) - The drawing shows the perspective view of the complex oxide sintered compact.    Complex oxide sintered compact (2)