Kyocera Corporation

Kouji Ochi

Hiroshi Masutani

Youichi Moto

Yoshihiko Fujiwara

Yuuki Matsusaki

Masashi Kuze

Tsuyoshi Andou

Yousuke Iwamoto

Tadashi Mitsuoka

Tetsuya Ookubo

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

Thermal head, and thermal printer

There are provided a thermal head capable of decreasing the possibility of occurrence of layer separation in a protective layer, and a thermal printer equipped with the same. A thermal head includes a substrate; an electrode disposed on the substrate; an electric resistor connected to the electrode, part of which serves as a heat-generating section; and a protective layer disposed on the electrode and on the heat-generating section. The protective layer includes a first layer containing silicon nitride or silicon oxide; and a second layer disposed on the first layer, containing tantalum oxide and silicon oxynitride.

Thermal head and thermal printer equipped with the same

A thermal head includes a substrate, a glass-made thermal storage layer disposed on one main surface of the substrate so as to extend to an edge of the substrate; electrodes disposed on or above the thermal storage layer apart from the edge of the substrate; heat-generating resistors disposed above the thermal storage layer apart from the edge of the substrate, the heat-generating resistors being connected to the electrodes; and a first covering layer disposed on or above the electrodes and the heat-generating resistors. The first covering layer extends from atop the electrodes and the heat-generating resistors toward atop the thermal storage layer on the edge of the substrate, and a protection film is disposed on or above the first covering layer disposed on or above the electrodes and the heat-generating resistors and an edge of the protection film is not disposed above the edge of the substrate.

Thermal head and thermal printer including the same

A thermal head and a thermal printer are disclosed. The thermal head includes a substrate, an electrode on the substrate, a heating portion connected to the electrode, and a protective layer on the heating portion. The protective layer includes a first layer and a second layer. The first layer is disposed on the heating portion and includes silicon carbonitride. The second layer is disposed on the first layer and includes silicon oxide.

Thermal head and thermal printer provided with same

There are provided a recording head capable of properly maintaining the function of a protective layer, and a recording apparatus provided with the recording head. A thermal head includes a substrate, a heat-generating element disposed on the substrate, and a protective layer disposed on the heat-generating element. The protective layer includes first layers and second layers. The first layers and the second layers are laminated one after another alternately multiple times. A constituent material of the second layer having higher sublimation resistance than a constituent material of the first layer.

Growing community of inventors

Kirishima, Japan

Kouji Ochi