Transducer and method for manufacturing same

A transducer comprising:

• a first electrode sheet provided with a plurality of first through-holes;
• a second electrode sheet provided with a plurality of second through-holes and disposed so as to face the first electrode sheet;
• a first dielectric layer that is integrally and mechanically engaged with the first electrode sheet on a side of a first inner surface;
• a second dielectric layer integrally and mechanically engaged with the second electrode sheet on a side of a second inner surface and joined directly or indirectly to the first dielectric layer;
• and
• an intermediate fusion-bonding layer formed from a fusion-bonding material, the intermediate fusion-bonding layer joining directly or indirectly, by fusion-bonding of the fusion-bonding material, a first body portion of the first dielectric layer and a second body portion of the second dielectric layer.

A transducer comprising:

• a conductive member;
• and
• an electrostatic sheet that is provided in a surface normal line direction of the conductive member,
• wherein the electrostatic sheet includes
• a first electrode sheet provided with a plurality of first through-holes, and
• a dielectric layer with a first surface disposed on a side of the first electrode sheet and a second surface disposed on a side of the conductive member,
• the dielectric layer on a side of the first surface is joined directly or indirectly to the first electrode sheet through any of fusion-bonding of a part of a material of the dielectric layer, fusion-bonding of a first fusion-bonding material that is different from the material of the dielectric layer, and mechanical engagement of the dielectric layer itself, and
• the dielectric layer on a side of the second surface is joined directly or indirectly to the conductive member through any of fusion-bonding of a part of a material of the dielectric layer and fusion-bonding of a second fusion-bonding material that is different from the material of the dielectric layer.