Abstract: An induction heater for a cook top comprising: —a first electrically insulating sheet (1); —a second electrically insulating sheet (2); —one or more inductors (5) arranged on a same plane between the first sheet (1) and the second sheet (2), each inductor (5) comprising a single electrically conductive track defining a flat spiral coil provided with a plurality of turns (15); wherein the thickness (t) of each inductor (5) is comprised between 100 and 500 ?m; and wherein the ratio between the distance (g) between the consecutive turns (15) of each inductor (5) and the thickness (t) of each inductor (5) is lower than or equal to 1.5.

Abstract: An induction heater for a device for heating tobacco or aromatic herbs, in particular of the heat-not-burn type. The induction heater includes at least one inductor having at least one electrically insulating layer and at least one electrically conductive track fixed to the at least one electrically insulating layer. The at least one inductor is adapted to be arranged about a metal tube in which part of a cigarette can be inserted, and the metal tube is adapted to be heated by induction by the at least one inductor.

Abstract: An induction heater for a cooking surface, the induction heater comprising an electrically insulating layer; at least one inductor defining a winding, adapted, at least, to heat at least one cooking utensil; at least one sensor adapted, at least, to detect whether said at least one cooking utensil is placed above the cooking surface; at least one magnetic flux concentrator; wherein said at least one inductor and said at least one sensor are arranged on said electrically insulating layer; wherein said layer is interposed between said at least one inductor and said at least one magnetic flux concentrator.

Abstract: An induction heater for a cook top comprising:—a first electrically insulating sheet (1);—a second electrically insulating sheet (2);—one or more inductors (5) arranged on a same plane between the first sheet (1) and the second sheet (2), each inductor (5) comprising a single electrically conductive track defining a flat spiral coil provided with a plurality of turns (15); wherein the thickness (t) of each inductor (5) is comprised between 100 and 500 ?m; and wherein the ratio between the distance (g) between the consecutive turns (15) of each inductor (5) and the thickness (t) of each inductor (5) is lower than or equal to 1.5.

Abstract: An induction heater for a cook top comprising: —a first electrically insulating sheet (1); —a second electrically insulating sheet (2); —one or more inductors (5) arranged on a same plane between the first sheet (1) and the second sheet (2), each inductor (5) comprising a single electrically conductive track defining a flat spiral coil; —at least one magnetic flux concentrator (4) arranged on a plane under the second sheet (2); —a metallic heat sink plate (3) arranged under the at least one magnetic flux concentrator (4), adapted to dissipate the heat produced by the one or more inductors (5).