Abstract: An acoustic wave device includes a piezoelectric substrate, first and second signal electrodes, and a first ground electrode on a first main surface of the piezoelectric substrate, at least one insulation layer on a second main surface of the piezoelectric substrate, first and second signal terminals provided indirectly on the second main surface with the insulation layer interposed therebetween, and a ground terminal on the second main surface. An acoustic wave filter is provided on the piezoelectric substrate. The first signal electrode and the first signal terminal are electrically coupled, the second signal electrode and the second signal terminal are electrically coupled, and the first ground electrode and the ground terminal are electrically coupled. The ground terminal includes a contact portion in contact with the second main surface of the piezoelectric substrate.

Abstract: An acoustic wave device includes a first and second element substrates each having piezoelectricity, and bonding layers bonding the first and second element substrates to each other. First and second IDT electrodes and first and second wiring electrodes are respectively provided on the first and second element substrates. The first and second wiring electrodes are disposed one above the other with the bonding layer interposed therebetween to define a wiring electrode overlapped portion. In each of the wiring electrode overlapped portions, the first wiring electrode and the second wiring electrode are provided in one of combinations in which one wiring electrode is a signal wiring electrode and the other wiring electrode is a ground wiring electrode, both of the wiring electrodes are ground wiring electrodes, and both of the wiring electrodes are signal wiring electrodes at the same potential.

Abstract: An acoustic wave device includes a first and second element substrates each having piezoelectricity, and bonding layers bonding the first and second element substrates to each other. First and second IDT electrodes and first and second wiring electrodes are respectively provided on the first and second element substrates. The first and second wiring electrodes are disposed one above the other with the bonding layer interposed therebetween to define a wiring electrode overlapped portion. In each of the wiring electrode overlapped portions, the first wiring electrode and the second wiring electrode are provided in one of combinations in which one wiring electrode is a signal wiring electrode and the other wiring electrode is a ground wiring electrode, both of the wiring electrodes are ground wiring electrodes, and both of the wiring electrodes are signal wiring electrodes at the same potential.

Abstract: A metallic tone glitter paint film is formed by applying sequentially a first base metallic paint, a second base glitter paint in which very small scale-like pigment or very small scale-like pigment and aluminum pigment is compounded and a clear paint, baking and hardening. The metallic paint contains (A) aluminum pigment of average particle diameter D50 from 13 to 40 m and average thickness from 0.5 to 2.5 ?m (B) aluminum pigment of average particle diameter D50 from 13 to 40 ?m and average thickness from 0.01 to less than 0.5 m and (C) aluminum pigment of average particle diameter D 50 from 4 to less than 13 ?m and average thickness from 0.01 to 1.3 ?m, and the ratio (A/B) by mass of the solid fractions of the aluminum pigments (A) and (B) is from 10/90 to 90/10.

Abstract: A metallic tone glitter paint film is formed by applying sequentially a first base metallic paint, a second base glitter paint in which very small scale like pigment or very small scale-like pigment and aluminum pigment is compounded and a clear

Abstract: To obtain a colored metallic paint with which a colored metallic paint film which has excellent features and with which a change in color is produced according to differences in the viewing angle can be formed using the usual cheap pigments without compounding special glitter materials. The present invention provides a paint composition which contains, per 100 parts by weight of a film forming binder (A), from 0.1 to 15 parts by weight of metallic powder (B), from 0.1 to 10 parts by weight of a first colored pigment (C) of primary particle size from 0.01 to 0.2 .mu.m which is selected from among the group comprising the phthalocyanine, perylene, indanthrone, azomethine, benzimidazolone, quinacridone, anthraquinone, diketopyrolopyrrole and dioxazine based pigments, and from 0.5 to 50 parts by weight of a second colored pigment (D) of primary particle size from 0.1 to 2 .mu.