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AssigneeSeiko Instruments Inc.
InventorsToshimitsu Morooka, Keitaro Koroishi, Noriyoshi Shoji, Norimitsu Sanbongi
Estimating the term…
A thermal head comprises a first substrate having a concave portion, a second substrate mounted on the first substrate and covering the concave portion to form with the first substrate a cavity portion, a heating resistor provided on a surface of the second substrate, and a pair of electrodes connected to the heating resistor for supplying power to the heating resistor. At least one of the pair of electrodes has a low thermal conductivity portion in a region opposed to the cavity portion. The low thermal conductivity portion is made of a material having a thermal conductivity lower than a thermal conductivity in other regions of the pair of electrodes and having an electrical resistance lower than an electrical resistance of the heating resistor.
A thermal head, comprising:
A manufacturing method for a thermal head, comprising:
A thermal head comprising:
Dependencies are inferred from the claim text.
Drawings are temporarily unavailable. Open the PDF at USPTO
From the US filing history. Foreign family members aren’t listed.
Structure of thermal heads: hollow parts under the heater
Constructional details: electrode layers
Structure of thermal heads: characterised by geometry
Method of mechanical manufacture: electrical device making
About 4 years 9 months of term left · ends 20 Jul 2031 (estimated)
1. Field of the Invention
The present invention relates to a thermal head, a thermal printer, and a manufacturing method for the thermal head.
2. Description of the Related Art
In the accompanying drawings:
FIG. 1 is a schematic structural view of a thermal printer according to a first embodiment of the present invention;
FIG. 2 is a plan view of a thermal head of FIG. 1 viewed in a stacking direction from a protective film side;
Now, a thermal head, a printer, and a manufacturing method for a thermal head according to a first embodiment of the present invention are described below with reference to the accompanying drawings.
A thermal printer (printer) 100 according to this embodiment is shown in FIG. 1 and includes a main body frame 2, a platen roller 4 disposed horizontally, a thermal head 10 disposed so as to be opposed to an outer peripheral surface of the platen roller 4, a paper feeding mechanism 6 for feeding an object to be printed, such as thermal paper (thermal recording medium) 3, between the platen roller 4 and the thermal head 10, and a pressure mechanism 8 for pressing the thermal head 10 against the thermal paper 3 with a predetermined pressing force.
Against the platen roller 4, the thermal paper 3 and the thermal head 10 are pressed by the operation of the pressure mechanism 8. Accordingly, a load of the platen roller 4 is applied to the thermal head 10 via the thermal paper 3.