Drinker Biddle & Reath LLP
Thermal head
To provide a thermal head which provides an excellent adhesion between the common electrode and the heat element, and in which the content of Pb is sufficiently reduced. A thermal head 5, comprising a substrate 7, a glaze layer 3 provided on the substrate 7, a common electrode 4 provided on the glaze layer 3, a heat element 1 provided on the common electrode 4 and the glaze layer 3, and lead electrodes 2a and 2b provided on the heat element 1, wherein the common electrode 4 includes an electrically conductive material composed of metal and a glass frit, and the glass frit contains 15 to 35% by mass of ZnO, 14 to 34% by mass of SiO2, 2 to 25% by mass of Al2O3, 2 to 15% by mass of TiO2, 5 to 25% by mass of CaO, and 7 to 27% by mass of BaO.
TDK Corporation
B C C B B C B
B41J C03C C03C B41J B41J C03C B41J
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Hiroshi Emi Katsuhiko
Yamada Ninomiya Igarashi