Abstract: An antibacterial molded article that can further increase antibacterial performance. The present invention for achieving the above object is related to an antibacterial molded article including a resin molded article. The resin molded article has an antibacterial area on a surface of the resin molded article, the antibacterial area having a prominent protrusion ratio of 3% or greater and 25% or less. Alternatively, the resin molded article has an antibacterial area on a surface of the resin molded article, the antibacterial area having: a maximum height of profile defined by JIS B 0601 (2013) of 100 nm or greater and less than 500 nm, and a plurality of capture protrusions having a height of not less than half the maximum height of profile (Rz), in which an average distance between the plurality of capture protrusions is 1.5 ?m or greater and 7 ?m or less.

Abstract: Acceptability of a disk is determined by passing a detection signal from a head through a low-pass filter to obtain a detection signal component corresponding to side runout of the disk due to rotation of the disk and by comparing the maximum level of the signal with a predetermined reference value. Thus, it is possible to extract unacceptable disk which causes erroneous write and/or read or clash due to surface undulation of disk, even when the disk has no protrusion having bad influence upon the disk.