Disclosed is a polyolefin resin composition which has an excellent transparency even when the polyolefin resin has a high melt flow rate. The information-processing device includes a device key storage configured to store a device key; and an MKB processor configured to generate a media key from the device key and a media key block. Ferromagnetic coupling fields caused by second and third AP pinned layers next to a free layer structure are counterbalanced by a net demagnetizing field from the first and second AP pinned layer structures. The vertical portion includes a hooking hole formed in an upper part of the vertical portion and an insertion hole formed in a lower part of the vertical portion. The characteristics are determined by screening of recombinant enzymes expressed by a DNA library produced from various microorganisms.