Sony Corporation

Mitsuo Yanase

Noboru Koyama

Toru Morikawa

Izumi Kariya

Tooru Morikawa

Kei Sato

Kazunori Onuma

A thermal head which forms an image on a recording medium by pressing a protruding portion on which heating elements are arranged on the recording medium while driving the heating elements to be heated includes a head body portion in which the protruding portion and a concave gap portion facing the protruding portion are formed and a heat conductive layer provided on the side of the protruding portion of the head body portion, in which the heat conductive layer includes an electric insulating layer securing electric insulation to the heating elements and a heat diffusion layer diffusing heat generated from the heating elements.

Thermal head and thermal printer

A thermal head includes a glass layer provided with a groove section formed inside the glass layer, a heat generating resistor disposed outside the glass layer, and a pair of electrodes provided to both sides of the heat generating resistor, wherein a part of the heat generating resistor exposed between the pair of electrodes is defined as a heat generating section, and at least one of the pair of electrodes has a smaller width in an end section on an opposite side to a side of the heat generating section than a width of an end section on the side of the heat generating section.

Thermal head and printing device

A thermal head which forms an image on a recording medium by pressing a protruding portion on which heating elements are arranged on the recording medium while driving the heating elements to be heated includes a support substrate in which a concave gap portion facing the protruding portion is formed and a glaze layer provided on the support substrate and in which the protruding portion is formed, in which the glaze layer has a base layer stacked on the support substrate as well as forming a ceiling surface of the gap portion and a heat resistant layer stacked on the base layer and on which the heating elements are arranged.

Thermal head, thermal printer and manufacturing method of thermal head

A thermal head includes a glass layer having a protruding section formed on one surface and a concave groove section formed on the other surface facing the protruding section, a heat generation resistor provided on the protruding section, and a pair of electrodes provided to both sides of the heat generation resistor, and a part of the heat generation resistor exposed between the pair of electrodes is defined as a heat generation section, the protruding section has a smaller curvature radius in both sides than a curvature radius in a central portion, and a width of the groove section is one of equal to and larger than a length of the heat generation section.

A thermal head includes a head containing a glass layer. The glass layer has a projecting portion on one surface and a concave groove on the other surface at a position opposed to the projecting portion. The head further contains a heating resistor disposed on the projecting portion, and a pair of electrodes disposed on both sides of the heating resistor. The thermal head further includes a rigid substrate on which a control circuit for the head is provided, and a flexible substrate for electrically connecting the head and the rigid substrate.

Growing community of inventors

Kanagawa, Japan

Mitsuo Yanase