Abstract: A magnetic tape includes a non-magnetic layer containing non-magnetic powder and a binder on a non-magnetic support; and a magnetic layer containing ferromagnetic powder and a binder on the non-magnetic layer. The total thickness of the non-magnetic layer and the magnetic layer is equal to or less than 0.60 ?m. The magnetic layer includes a timing-based servo pattern. One or more components selected from a fatty acid and a fatty acid amide are included in at least the magnetic layer. The C—H derived C concentration calculated from the C—H peak area ratio of C1s spectra obtained by X-ray photoelectron spectroscopic analysis performed on the surface of the magnetic layer at a photoelectron take-off angle of 10 degrees is equal to or greater than 45 atom %.

Abstract: A printing apparatus and a printing method that can reduce a difference in glossiness in an in-plane direction of a printed matter to which aqueous varnish has been applied. The apparatus and method satisfy a relationship of “Tp?(40/6)×tw?a” when the temperature of a recording surface at the time of application of aqueous varnish containing water is denoted by Tp, coating formation time of the aqueous varnish is denoted by tw, and a constant determined according to an allowable value of a gloss difference, which is a difference between glossiness of the recording surface of a printed matter of which applied aqueous varnish has been dried in a first direction and glossiness of the recording surface in a direction orthogonal to the first direction, is denoted by a. Here, the unit of the temperature Tp is ° C. and the unit of the coating formation time tw is minute.

Abstract: Provided are an electroacoustic transduction film and an electroacoustic transducer capable of reproducing a sound with a sufficient sound volume and preventing deterioration of appearance. The electroacoustic transduction film includes: a polymer composite piezoelectric body in which piezoelectric body particles are dispersed in a viscoelastic matrix formed of a polymer material having viscoelasticity at a normal temperature; a lower thin film electrode laminated on one principal surface of the polymer composite piezoelectric body; a lower protective layer laminated on the lower thin film electrode; an upper thin film electrode formed on the other principal surface of the polymer composite piezoelectric body; an upper protective layer laminated on the upper thin film electrode; and a colored layer laminated on at least one of a surface layer side of the upper thin film electrode and a surface layer side of the lower thin film electrode.