Abstract: In a distance measurement apparatus, a light emitter emits pulse-like light. A light receiver receives reflected light of the emitted light and converts the received light to an electrical signal. An AD converter converts the electrical signal to a digital value at a predetermined sampling rate to generate a conversion data series. An interpolation processor upsamples the outputted conversion data series by inserting interpolation data therein to generate an up-data series. A distance calculator calculates a distance to an object that reflects light using a signal waveform indicated by the up-data series. The interpolation processor inserts the interpolation data having an interpolation value between pieces of data belonging to the conversion data series, and smooths the data series in which the interpolation data is inserted using a low-pass filter that has characteristics in which waveform distortion caused by ringing does not occur.

Abstract: A one-way clutch that employs spaced apart magnetic members to draw rollers into portions of a cam surface so that a shaft and race will rotate as one.

Abstract: A suppository base composition comprising 5-80% by weight of polyethylene glycol, 5-80% by weight of triglyceride of fatty acid having 6-22 carbon atoms and 5-80% by weight of a specifically limited alkylene oxide derivative has a melting point of 30.degree.-60.degree. C., a compatibility with both of a polar drug component and a non-polar drug component, and can provide suppositories having excellent moldability and storage stability.

Abstract: A suppository base composition comprising 5-80% by weight of polyethylene glycol, 5-80% by weight of triglyceride of fatty acid having 6-22 carbon atoms and 5-80% by weight of a specifically limited alkylene oxide derivative has a melting point of 30.degree.-60.degree. C., a compatibility with both of a polar drug component and a non-polar drug component, and can provide suppositories having excellent moldability and storage stability.