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US 12,732,758 B2Granted
Pressure wave generating element
AssigneeMurata Manufacturing Co., Ltd.
InventorKohei Fukamachi
Life of this patent
Estimating the term…
Abstract
A pressure wave generating element that includes: a first solid insulating layer having a first principal surface; a first metal layer on the first principal surface of the first solid insulating layer; a second metal layer disposed at a distance from the first metal layer in a thickness direction of the first solid insulating layer such that the first solid insulating layer is located between the first metal layer and the second metal layer; a first electrode electrically connected to a first end side of the first metal layer and a second end side of the second metal layer; and a second electrode electrically connected to a third end side of the first metal layer and a fourth end side of the second metal layer.
Claims15
A pressure wave generating element, comprising:
- a first solid insulating layer having a first principal surface and a second principal surface opposed to the first principal surface;
- a first metal layer on the first principal surface of the first solid insulating layer;
- a second metal layer on the second principal surface of the first solid insulating layer and disposed at a distance from the first metal layer in a thickness direction of the first solid insulating layer such that the first solid insulating layer is located between the first metal layer and the second metal layer;
- a first electrode electrically connected to a first end side of the first metal layer and a second side of the second metal layer;
- and
- a second electrode electrically connected to a third end side of the first metal layer and a fourth end side of the second metal layer,
- wherein;
- each of the first metal layer and the second metal layer is a fiber-containing metal layer on a front surface and a back surface, respectively, of a fiber membrane having a porous structure, and
- the first solid insulating layer includes a portion located between the first metal layer and the second metal layer in the fiber membrane.
6 more elements
A pressure wave generating element comprising:
- a first solid insulating layer having a first principal surface and a second principal surface opposed to the first principal surface;
- a first metal layer on the first principal surface of the first solid insulating layer;
- a second metal layer on the second principal surface of the first solid insulating layer and disposed at a distance from the first metal layer in a thickness direction of the first solid insulating layer such that the first solid insulating layer is located between the first metal layer and the second metal layer;
- a third metal layer disposed on a side of the second metal layer opposite to the first solid insulating layer in the thickness direction and at a distance from the second metal layer;
- a first electrode electrically connected to a first end side of the first metal layer and a second side of the second metal layer;
- and
- a second electrode electrically connected to a third end side of the first metal layer and a fourth end side of the second metal layer,
- wherein the first electrode is electrically connected to a fifth end side of the third metal layer, and the second electrode is electrically connected to a sixth end side of the third metal layer.
5 more elements
A pressure wave generating element comprising:
- a first solid insulating layer having a first principal surface;
- a first metal layer on the first principal surface of the first solid insulating layer;
- a second metal layer disposed at a distance from the first metal layer in a thickness direction of the first solid insulating layer such that the first solid insulating layer is located between the first metal layer and the second metal layer;
- a first electrode electrically connected to a first end side of the first metal layer and a second side of the second metal layer;
- a second electrode electrically connected to a third end side of the first metal layer and a fourth end side of the second metal layer;
- and
- a second solid insulating layer having a third principal surface,
- wherein the second metal layer is on the third principal surface of the second solid insulating layer, and the second metal layer is disposed between the first solid insulating layer and the second solid insulating layer at a distance from the first solid insulating layer,
- wherein the first metal layer and the second metal layer form a unit heating element, and the pressure wave generating element comprises a plurality of the unit heating elements,
- wherein the plurality of unit heating elements are stacked at a distance from each other along the thickness direction from a side of the second metal layer, and
- wherein the first end side of the first metal layer is electrically connected to the first electrode in each of the plurality of unit heating elements, and the second end side of the first metal layer is electrically connected to the second electrode in each of the plurality of unit heating elements.
8 more elements
A pressure wave generating element, comprising:
- a first solid insulating layer having a first principal surface and a second principal surface opposed to the first principal surface;
- a first metal layer on the first principal surface of the first solid insulating layer;
- a second metal layer on the second principal surface of the first solid insulating layer and disposed at a distance from the first metal layer in a thickness direction of the first solid insulating layer such that the first solid insulating layer is located between the first metal layer and the second metal layer;
- a first electrode electrically connected to a first end side of the first metal layer and a second side of the second metal layer;
- and
- a second electrode electrically connected to a third end side of the first metal layer and a fourth end side of the second metal layer,
- wherein the first solid insulating layer, the first metal layer, and the second metal layer form a unit heating element, and the pressure wave generating element comprises a plurality of the unit heating elements,
- wherein the plurality of unit heating elements are stacked at a distance from each other along the thickness direction, and
- wherein the first end side of the first metal layer and the second end side of the second metal layer are electrically connected to the first electrode in each of the plurality of unit heating elements, and the third end side of the first metal layer and the fourth end side of the second metal layer are electrically connected to the second electrode in each of the plurality of unit heating elements.
6 more elements
A pressure wave generating element comprising:
- a first solid insulating layer having a first principal surface;
- a first metal layer on the first principal surface of the first solid insulating layer;
- a second metal layer disposed at a distance from the first metal layer in a thickness direction of the first solid insulating layer such that the first solid insulating layer is located between the first metal layer and the second metal layer;
- a first electrode electrically connected to a first end side of the first metal layer and a second side of the second metal layer;
- a second electrode electrically connected to a third end side of the first metal layer and a fourth end side of the second metal layer;
- a first connection electrode that electrically connects the first metal layer to the first electrode;
- a second connection electrode that electrically connects the first metal layer to the second electrode;
- a third connection electrode that electrically connects the second metal layer to the first electrode;
- and
- a fourth connection electrode that electrically connects the second metal layer to the second electrode.
7 more elements
Dependencies are inferred from the claim text.