Kyocera Corporation

Tsuyoshi Andou

Hiroshi Masutani

Kouji Ochi

Youichi Moto

Yousuke Iwamoto

A thermal head includes a substrate; a plurality of heat generating portions; a common electrode disposed on the substrate and electrically connected to the plurality of heat generating portions; a plurality of individual electrodes disposed on the substrate and each electrically connected to a corresponding one of the plurality of heat generating portions; a first insulation layer disposed on the heat generating portions, a part of the common electrode, and a part of the individual electrodes; a second insulation layer located adjacent to the first insulation layer and disposed on a part of the individual electrodes; and a static removing layer disposed on the first insulation layer and grounded. The static removing layer includes a first portion disposed on an upper surface of the first insulation layer and a second portion electrically connected to the first portion and disposed on an upper surface of the second insulation layer.

Thermal head and thermal printer

To provide a thermal head in which separation of a protective layer is unlikely to occur. A thermal head Xincludes a substrate, a heat-generating portiondisposed on the substrate, electrodesanddisposed on the substrateand electrically connected to the heat-generating portion, and a protective layerwhich covers the heat-generating portionand part of the electrodesand. The electrodesandeach includes a first region Rwhich lies below a depth of 150 nm from the surfaceorlocated on the protective layerside, and the first region Rcontains oxygen. It is possible to suppress separation of each of the electrodesandfrom the protective layer

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Kirishima, Japan

Tsuyoshi Andou