Abstract: Provided is a lithographic printing plate precursor having: a support; and an image-recording layer as an outermost surface layer on the support, in which the image-recording layer includes a hydrophilic polymer, an ion intensity derived from the hydrophilic polymer has a maximum value I1, the ion intensity being measured by a time-of-flight secondary ion mass spectrometry in such a manner that cutting is carried out from an image-recording layer surface in a direction of the support by an Ar gas cluster ion beam method, a ratio d0/d1 of a thickness d0 of the image-recording layer to a depth d1 from an outermost layer at which the I1 is obtained is 2.0 or more, and a ratio I1/I0 of the I1 to an ion intensity I0 derived from the hydrophilic polymer at a depth from the outermost layer of the d0 is 1.5 or more.

Abstract: Provided is a lithographic printing plate precursor having: a support; and an image-recording layer as an outermost surface layer on the support, in which the image-recording layer includes a hydrophilic polymer, an ion intensity derived from the hydrophilic polymer has a maximum value I1, the ion intensity being measured by a time-of-flight secondary ion mass spectrometry in such a manner that cutting is carried out from an image-recording layer surface in a direction of the support by an Ar gas cluster ion beam method, a ratio d0/d1 of a thickness d0 of the image-recording layer to a depth d1 from an outermost layer at which the I1 is obtained is 2.0 or more, and a ratio I1/I0 of the I1 to an ion intensity I0 derived from the hydrophilic polymer at a depth from the outermost layer of the d0 is 1.5 or more.

Abstract: In a case that a part of the region of a touch panel is used as a touchpad, even when the touch panel screen is not watched, degradation of operability can be avoided. An information processing device includes: touch panel control means of performing control of displaying a virtual touchpad in a first region serving as a part of an entire display region of a touch panel; pointer operation input receiving means of receiving input of user operation to the first region, as input of operation of a pointer; and pointer display control means of, on the basis of the input of operation of the pointer, performing control of displaying a pointer on a display screen of an external display. Then, in a case that the input of user operation is stroke and that the start point of the stroke is located inside the first region and the end point is located outside the first region, the touch panel control means performs control of moving the first region such as to contain the end point.