A dynamic pressure bearing device includes a rotary shaft, a dynamic pressure bearing member for supporting the rotary shaft, two radial dynamic pressure bearing parts and a thrust dynamic pressure bearing part formed between the dynamic pressure bearing member and the rotary shaft, and a lubricating fluid continuously filled in the two radial bearing parts and the thrust bearing part. The inputoutput line circuit of the semiconductor memory device is operable without affecting other external devices and being affected by noise from other external devices along with improved power dissipation. Such control thus ensures a smooth compression stroke at the subsequent start of the engine. The bottomed cylindrical part is inserted into a fuel introduction hole formed in the valve housing inside the valve seat. For a given segment of the text string, one or more corrected segments can be generated by applying an error-correction filter configured to correct errors based on an input type associated with the given segment and a location-sensitive context.