Tangent Company LLC

Takashi Utsunomiya

A soundproof material may comprise, in order: a first electrically conductive ferromagnetic layer, a charged insulator layer, and a second electrically conductive ferromagnetic layer. A charged site at the charged insulator layer may be electrically insulated from the first electrically conductive ferromagnetic layer and/or the second electrically conductive ferromagnetic layer. When a sound causes vibration of any among the first electrically conductive ferromagnetic layer, the charged insulator layer, and/or the second electrically conductive ferromagnetic layer, this causes alteration of a magnetic field at the first electrically conductive ferromagnetic layer and/or the second electrically conductive ferromagnetic layer, soundproofing being carried out when acoustic energy of the sound wave is lost as thermal energy.

Soundproof material

Vacuum insulating glass or other such vacuum insulating material may be provided with a first plate and a second plate that are arranged in mutually opposed fashion so as to straddle therebetween a space of a gap that is a vacuum layer. The first plate may have, in order of lamination from the exterior, a first electrically conductive layer, and a first charged insulator. The second plate may have, in order of lamination from the exterior, a second electrically conductive layer, and a second charged insulator which is charged with charge of the same polarity as the first charged insulator. A repulsive force that is a Coulomb force which acts between the first charged insulator and the second charged insulator may substantially balance and counteract a tendency of ambient atmospheric pressure to reduce the length of the gap between the first plate and the second plate.

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Matsuyama, Japan

Takashi Utsunomiya