Abstract: A soft magnetic alloy includes a main component of (Fe(1?(?+?))X1?X2?)(1?(a+b+c+d+e))MaBbPcSidCe. X1 is one or more of Co and Ni. X2 is one or more of Al, Mn, Ag, Zn, Sn, As, Sb, Cu, Cr, Bi, N, O, and rare earth elements. M is one or more of Nb, Hf, Zr, Ta, Mo, W, and V. 0.020?a?0.14 is satisfied. 0.020<b?0.20 is satisfied. 0?d?0.060 is satisfied. ??0 is satisfied. ??0 is satisfied. 0??+??0.50 is satisfied. c and e are within a predetermined range. The soft magnetic alloy has a nanohetero structure or a structure of Fe based nanocrystallines.

Abstract: A soft magnetic alloy powder comprises a component having a compositional formula ((Fe(1?(?+?))Co?Ni?)(1??)X1?)(1?(a+b+c+d+e))BaPbSicCdCre in atomic ratio. X1 comprises at least one selected from specific elements. Values of a, b, c, d, e, ?, ?, and ? of the compositional formula satisfy specific ranges. The soft magnetic alloy powder comprises soft magnetic alloy particles including soft magnetic alloy particles having a particle size of (0.95×D90) or more and (1.05×D90) or less. An average Wadell's circularity of the soft magnetic alloy particles having the particle size of (0.95×D90) or more and (1.05×D90) or less is 0.75 or more. A variance of Wadell's circularity of the soft magnetic alloy particles having the particle size of (0.95×D90) or more and (1.05×D90) or less is 0.035 or less.

Abstract: A soft magnetic alloy powder comprises first particles to fifth particles, each having a particle size within a specific range. Among the first particles to the fifth particles, nth particles have an average particle size xn (?m), an average circularity yn, and a variance zn of circularity, where nth is any ordinal number from first to fifth. Points (xn, yn) (n=1 to 5) plotted in an xy plane define an approximate straight line having a slope “my” of ?0.0030 or more. Points (xn, zn) (n=1 to 5) plotted in an xz plane define an approximate straight line having a slope “mz” of 0.00050 or less.

Abstract: A rotary recording medium recorded with an information signal including a video signal along a spiral track thereon, and from which the recorded information signal is reproduced by a reproducing apparatus in which a reproducing element scans over the spiral track, is further recorded with a stop signal on a track turn recorded with an information signal which is to be reproduced repeatedly for a predetermined time period so that the reproducing element repetitively reproduces the track turn for the predetermined time period. The reproducing apparatus comprises a stop signal detection circuit for detecting the stop signal from a signal reproduced by the reproducing element, and a circuit responsive to the stop signal detected by the stop signal detection circuit, for causing repetitive reproduction of a predetermined track turn recorded with the stop signal. The still picture reproduction is performed by repetitively reproducing the information signal recorded on a track turn recorded with the stop signal.