A dye, having a structure represented by formula (1A): wherein A represents a group of atoms necessary for forming a ring together with the carbon-nitrogen bond; at least one of Y 1A and Y 2A represents an acidic group, in which when they each represent an...

Realizing a high power generation capability in a non-lead interior tire power generation apparatus. The apparatus (2) includes a piezoelectric section (20) having an inorganic piezoelectric body of a perovskite type oxide represented by General Formula (P...