Abstract: The present disclosure provides a thermal print head and a method manufacturing thereof and a thermal printer including the thermal print head, which are capable of suppressing low manufacturing efficiency and enhancing wear-resistance against a recording medium. The thermal print head includes: a substrate, having a main surface facing a thickness direction; a resistance layer, including multiple heating portions arranged in a main scan direction and formed on the main surface; a wiring layer, formed on the resistance layer and connected to the heating portions; and a protection layer, covering a part of the main surface, the heating portions and the wiring layer.

Abstract: A thermal printhead includes a substrate having an obverse surface, a projection formed on the obverse surface and extending in a primary scanning direction, a plurality of heating elements arranged in the primary scanning direction on the top of the projection, a groove dented from the top of the projection and extending in the primary scanning direction, and a heat storage member filling at least an opening of the groove.

Abstract: An asymmetric thermal print head includes a print head body and a plurality of print elements supported on the print head body. The print elements are aligned along a first axis. Each print element includes a heater portion having a burn width measured along the first axis corresponding to a first print resolution, and a burn length measured along a second axis, which is perpendicular to the first axis, corresponding to a second print resolution. The second print resolution is higher than the first print resolution. One or more control circuits are configured to individually activate the print elements.

Abstract: Techniques for more accurately and efficiently replicating the alignment of one or more printer components with respect to another printer component are described herein. Replication may be achieved by using a fixture and a connection media to create a near exact replica of features of the fixture, or to temporarily hold multiple printer components in position while a joining layer of the connection media hardens. More specifically, a connection media, such as epoxy, can be used to fill an intentionally-established gap between connecting bodies or components that are held in a predetermined position by the replication fixture. The replication fixture represents a mechanical mounting interface that influences the position of a print head (or an array of print heads) within a printer housing or printing mechanism. Joining printer components in such a manner enables a stable mechanical coupling to be formed that does not require post operations.

Abstract: The method and apparatus for protecting the printhead in a thermal printer includes preparing the printer for label dispensing and then covering the printhead such that the label run or thermal material passing over the same does not contact the printhead. The cover for the printhead can take various forms. In one implementation, the cover is a sleeve configured to fit over the entire printhead assembly of the thermal printer. The printhead cover has a low coefficient of friction.

Abstract: In one example, a fluid flow structure includes a micro device embedded in a molding having a channel therein through which fluid may flow directly into the device and/or onto the device.

Abstract: A thermal print head includes a semiconductor substrate, a resistor layer with heat generating portions arranged in the main scanning direction, a wiring layer included in a conduction path for energizing the heat generating portions, and a protective layer covering the resistor layer and the wiring layer. The semiconductor substrate includes a projection protruding from the obverse surface of the substrate and elongated in the main scanning direction. The projection has first and second inclined side surfaces spaced apart from each other in the sub-scanning direction. The heat generating portions are arranged to overlap with the first inclined side surface of the projection as viewed in plan view.

Abstract: An objective lens for an endoscope, an actuator for focusing the objective lens, and an endoscope system including the objective lens are provided. The objective lens for an endoscope includes a plurality of lenses and a stop, and an optical element disposed adjacent to the stop, wherein a focal length may be varied by moving the optical element in a direction different from an optical axis.

Abstract: The present invention provides a method and system for securing sensitive data from unauthorized access or use. The method and system of the present invention is useful in a wide variety of settings, including commercial settings generally available to the public which may be extremely large or small with respect to the number of users. The method and system of the present invention is also useful in a more private setting, such as with a corporation or governmental agency, as well as between corporation, governmental agencies or any other entity.

Abstract: The object is to provide a thermal print head capable of improving printing quality on a medium. The Solution is to provide a base member 11 including a recess 113a, a heat storage region 2 formed in the recess 113a, a resistor layer 4 formed on the base member 11, and an electrode layer 3 formed on the base member 11 and electrically connected to the resistor layer 4. The resistor layer 4 includes a heating portion 41 spanned between two portions of the electrode layer 3 spaced from each other as viewed in a thickness direction Z of the base member 11. The heating portion 41 is located so as to overlap the recess 113a as viewed in the thickness direction Z. The base member 11 is made of a material having a thermal conductivity of 100 to 300 W/(m·K).

Abstract: A thermal head has a support substrate, an upper substrate arranged on the support substrate on one surface side thereof in a laminated state, and an intermediate layer arranged between the upper substrate and the support substrate to bond the upper substrate and the support substrate to each other. The intermediate layer has one of a through hole and a concave portion forming a cavity portion between the upper substrate and the support substrate. A heat generating resistor is formed on a surface of the upper substrate on a side opposite to the support substrate at a position opposed to the cavity portion. The intermediate layer is formed of a glass paste having a melting point lower than a firing temperature of the support substrate and higher than a melting temperature of the upper substrate.

Abstract: The object is to provide a thermal print head capable of improving printing quality on a medium. The Solution is to provide a base member 11 including a recess 113a, a heat storage region 2 formed in the recess 113a, a resistor layer 4 formed on the base member 11, and an electrode layer 3 formed on the base member 11 and electrically connected to the resistor layer 4. The resistor layer 4 includes a heating portion 41 spanned between two portions of the electrode layer 3 spaced from each other as viewed in a thickness direction Z of the base member 11. The heating portion 41 is located so as to overlap the recess 113a as viewed in the thickness direction Z. The base member 11 is made of a material having a thermal conductivity of 100 to 300 W/(m·K).

Abstract: Improved product labels cannot be easily counterfeited. A plurality of small dots printed on the label are interpreted as dirt or flaw or misprint so that the counterfeit label will not reproduce the plurality of small dots. A first image printed on the label and having a first level of spectural reflectivity, and a second image printed atop the first image using ink having a spectural reflectivity different from the spectural reflectivity of the first image. A plurality of very small dots creates a grayscale field, and a symbol printed within the grayscale field of very small dots, thereby creating a watermark of such high complexity that it cannot be counterfeited. A symbol printed on the label, and a raised dot of ink printed atop the symbol at a precise location to be sensed by finger contact and thereby indicate the authenticity of the label.

Abstract: 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.

Abstract: A thermal head in a thermal transfer printer in which a tension is given to an ink ribbon that has warped as being heated by the thermal head to reduce friction force generated between the thermal head and the ink ribbon. A ribbon transport direction changing member 30 pushes the ink ribbon 13 away from a heat generator 21, as a transport direction of the ink ribbon 13 is slightly moved toward a platen roller 10, so a constant tension is given to a film layer 24 of the ink ribbon immediately after being heated.

Abstract: A method of manufacturing a thermal head, comprising the steps of: bonding a support substrate and an upper substrate, which have a flat shape, together in a laminated state, the support substrate and the upper substrate having opposed surfaces, at least one of which includes a concave portion; thinning the upper substrate bonded onto the support substrate; a measurement step of measuring a thickness of the thinned upper substrate; determining a target resistance value of a heating resistor from the following expression based on the measured thickness of the upper substrate; and forming the heating resistor having the target resistance value at a position opposed to the concave portion, Rh=R0×(1+(D1+D0)/(D0+K)) where Rh represents the target resistance value; R0, a design resistance value; D1, the thickness of the upper substrate; D0, a design thickness of the upper substrate; and K, a heating efficiency coefficient.

Abstract: A method of manufacturing a thermal head, including: forming a concave being, which is open on one surface of a support-substrate made of an alumina material; forming an intermediate-layer made of a glass paste by printing the glass paste made of a first-glass-material on the one surface of the support-substrate and baking the glass paste; bonding an upper-substrate to the one surface of the support-substrate by arranging the upper-substrate on the intermediate-layer formed on the one surface of the support-substrate in a laminated state and heating the upper-substrate at a temperature of an annealing point thereof or higher and a softening point thereof or lower, the upper-substrate being made of a second-glass-material having a softening point lower than a softening point of the first-glass-material; and forming a heat generating resistor on a surface of the upper-substrate bonded to the support-substrate at a position opposed to the concave portion.

Abstract: A thermal head and a printer head are disclosed. The thermal head includes heat generating members, a drive IC disposed, pads and interconnection lines which are all disposed on a substrate. The heat generating members are arranged in a first direction. The drive IC is operable to control driving of the heat generating members. The pads are operable to being electrically connected to terminals of the drive IC. The interconnection lines electrically connect each of the heat generating members to one of the pads. The pads are arranged in a first direction and constitute first pad groups and second pad groups constituted by the pads that constitute the first pad groups. The second pad groups are arranged in the first direction so as to be shifted from each other in a second direction that differs from the first direction.

Abstract: A thermal head capable of dissipating heat accumulated in a heat accumulating layer efficiently and achieving clear printing, and a thermal printer including the thermal head are provided. A thermal head includes a substrate, a heat accumulating layer disposed on part of the substrate, a heat generating portion disposed on the heat accumulating layer, an electrode electrically connected to the heat generating portion, a protective layer that covers the heat generating portion and part of the electrode, and an insulating layer having thermal conductivity, the insulating layer covering part of a region of the electrode which region is not covered with the protective layer. The insulating layer covers part of the protective layer and extends over the heat accumulating layer.

Abstract: A method of manufacturing a thermal head, including: forming a concave being, which is open on one surface of a support-substrate made of an alumina material; forming an intermediate-layer made of a glass paste by printing the glass paste made of a first-glass-material on the one surface of the support-substrate and baking the glass paste; bonding an upper-substrate to the one surface of the support-substrate by arranging the upper-substrate on the intermediate-layer formed on the one surface of the support-substrate in a laminated state and heating the upper-substrate at a temperature of an annealing point thereof or higher and a softening point thereof or lower, the upper-substrate being made of a second-glass-material having a softening point lower than a softening point of the first-glass-material; and forming a heat generating resistor on a surface of the upper-substrate bonded to the support-substrate at a position opposed to the concave portion.

Abstract: There are provided a recording head capable of reduction of variations in heat-generating temperature among heat-generating elements constituting a heat-generating-element array, and a recording device including the recording head. A recording head includes a heat radiator; a head base body having a substrate placed on or above the heat radiator and a heat-generating-element array composed of a plurality of heat-generating elements arranged on or above the substrate; a bonding layer that is interposed between the heat radiator and the substrate and bonds the heat radiator with the substrate; and a plurality of spacer particles arranged within the bonding layer so as to abut on both of the heat radiator and the substrate. The bonding layer includes a first region situated immediately below the heat-generating-element array and a second region extending in parallel with the first region. The spacer particles are arranged in the second region.

Abstract: A thermal head enables printing even after printing for a long time to a print medium with low paper quality. A thermal head 20 to which a print medium P is pressed by a platen roller 10 has a heat unit 21 with a plurality of heat elements 21a arrayed on an axis, and an electrode connection unit 26 that is formed on an extension of the axis. A receptive space A to which the end 11a of the platen roller 10 contact surface 11 that is pressed to the thermal head 20 is positioned is formed on this axis between the heat unit 21 and the electrode connection unit 26.

Abstract: A method of creating an optical security element in a value document using a low-cost printing device of a data processing terminal is described. The method comprises: providing a flexible substrate having a pre-printed ink portion; wherein the pre-printed ink portion is provided in an unexposed state which does not provide an optical security function of the security element; configuring a variable laser irradiation device to determine a part of the unexposed pre-printed ink portion to be exposed to laser radiation in a machine-controlled manner, and exposing the unexposed pre-printed ink portion to laser radiation in the machine-controlled manner to create from the pre-printed ink portion a predefined pattern, wherein the optical characteristics of the pattern provide the optical security element.

Abstract: 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.

Abstract: Accumulation of foreign matter on the surface of a thermal head that can cause printing defects can be reliably prevented. The downstream edge of a surface of the thermal head is substantially flush with the downstream end of a paper nipping area and a platen roller in the thermal printer. The downstream end extending from the downstream edge perpendicular to the back side is connected to a through-hole formed in a heat sink. Foreign matter on a liner-less label paper clings to the downstream end of the thermal head after passing the paper nipping area, and is then fed along the downstream end into the through-hole on the back. Foreign matter does not accumulate on the surface of the thermal head, and problems such as streaking and other printing defects caused by foreign matter on the surface of the thermal head do not occur.

Abstract: In order to secure printing quality, a head unit includes a thermal head having a heating body formed on one surface of a glass substrate made of a transparent glass material, the heating body being configured to generate heat when supplied with external power, and a support body is laminated onto the glass substrate in a stacked state. The glass substrate and the support body include a plurality of lamination reference marks and a plurality of head positioning reference marks, respectively, which are disposed so as to be mutually aligned in a direction along the one surface of the glass substrate.

Abstract: A thermal print head includes a substrate, a glaze layer formed on the substrate and provided with a heating resistor support portion extending in a primary scanning direction and having an arc-like cross-sectional shape when seen in a direction perpendicular to the primary scanning direction, an electrode layer including a plurality of individual electrodes, each provided with a first strip-shaped portion arranged along the primary scanning direction, each of the first strip-shaped portions formed on the heating resistor support portion, and a common electrode provided with a plurality of second strip-shaped portions arranged along the primary scanning direction, each of the second strip-shaped portions formed on the heating resistor support portion; and a resistor layer including heating portions heated by applying an electric current from the electrode layer and electrode covering portions each configured to cover a gap between the first and second strip-shaped portions.

Abstract: A thermal head has a support substrate that has a concave portion having an opening portion formed in a surface of the support substrate, and an upper substrate bonded to the surface of the support substrate in a stacked state to close the opening portion. The upper substrate has an external dimension which is smaller than an external dimension of the support substrate and is slightly larger than an external dimension of the opening portion for closing the opening portion. A heating resistor is formed on a surface of the upper substrate in a position opposed to the concave portion of the support substrate. The thermal head is high in durability and reliability with increased printing efficiency as well as increased manufacturing yields.

Abstract: A thermal head includes a support substrate having a concave portion formed in its front surface, and an upper substrate bonded in a stacked state to the front surface of the support substrate. A heating resistor is provided on the front surface of the upper substrate at a position corresponding to the concave portion. A pair of electrodes are provided on opposite sides of the heating resistor, and a convex portion is formed in the front surface of the upper substrate between the pair of electrodes. The heating resistor has a heating portion disposed between and not overlapped by the electrodes, and the heating portion directly overlies the concave portion. The convex portion has a width dimension smaller than that of the heating portion.

Abstract: Provided is a thermal head including an intermediate layer between a support substrate and an upper substrate, which is capable of suppressing heat dissipation toward the support substrate while maintaining printing quality. Employed is a thermal head (1) including: an upper substrate (5); a support substrate (3) bonded in a stacked state on one surface side of the upper substrate (5); a heating resistor (7) provided on another surface side of the upper substrate (5); and an intermediate layer (6) including a concave portion that forms a cavity portion (4) in a region corresponding to the heating resistor (7), the intermediate layer (6) being provided between the upper substrate (5) and the support substrate (3), in which the intermediate layer (6) is formed of a plate-shaped glass material having a lower melting point than melting points of the upper substrate (5) and the support substrate (3).

Abstract: A thermal head has a support substrate, an upper plate substrate having a back surface bonded to a top surface of the support substrate, and a heating resistor provided on the upper plate substrate. A concave portion is formed in a region of at least one of the top surface of the support substrate and the back surface of the upper plate substrate and opposes the heating resistor. A through portion is formed in the upper plate substrate and passes through the upper plate substrate from a top surface of the upper plate substrate to the top surface of the support substrate in a plate thickness direction. The upper plate substrate functions as a heat accumulating layer, and the concave portion functions as a heat insulating layer.

Abstract: Provided is a thermal head (1) including: a substrate body (12) constituted through bonding a flat supporting substrate (13) and a flat upper substrate (11), which are made of a glass material onto each other in a stacked state; a heating resistor (14) formed on a surface of the upper substrate (11); and a protective film (18) that partially covers the surface of the upper substrate (11) including the heating resistor (14) and protects the heating resistor (14), in which a heat-insulating concave portion (32) and thickness-measuring concave portions (34), which are open to a bonding surface between the supporting substrate and the upper substrate (11) and form cavities are provided in the supporting substrate (13), the heat-insulating concave portion (32) is formed at a position opposed to the heating resistor (14), and the thickness-measuring concave portions (34) is formed in a region that is prevented from being covered with the protective film (18).

Abstract: A thermal head enables printing even after printing for a long time to a print medium with low paper quality. A thermal head 20 to which a print medium P is pressed by a platen roller 10 has a heat unit 21 with a plurality of heat elements 21a arrayed on an axis, and an electrode connection unit 26 that is formed on an extension of the axis. A receptive space A to which the end 11a of the platen roller 10 contact surface 11 that is pressed to the thermal head 20 is positioned is formed on this axis between the heat unit 21 and the electrode connection unit 26.

Abstract: To improve printing quality and reduce manufacturing cost, a plurality of heating resistors (14) are arranged with spaces therebetween on a heat storage layer (13) laminated on a surface of a supporting substrate (11) via an adhesive layer (12) made of an elastic material. A cavity portion (19) is formed at a region between the supporting substrate (11) and the heat storage layer (13), the region being opposed to a heat generating portion of each of the plurality of heating resistors (14). The adhesive layer (12) includes a first adhesive layer (12a) laminated on the surface of the supporting substrate (11) and a second adhesive layer (12b) laminated on a surface of the heat storage layer (13). The elastic material constituting the second adhesive layer (12b) is arranged so that the elastic material is in a bonded state with respect to at least a part of the surface of the heat storage layer (13) opposed to the cavity portion (19).

Abstract: To improve heat generating efficiency and printing quality, a plurality of heating resistors (14) are arranged with spaces therebetween on a heat storage layer (13) laminated on a surface of a supporting substrate (11) via an adhesive layer (12) made of an elastic material. A cavity section (19) is formed at a region between the supporting substrate (11) and the heat storage layer (13), the region being opposed to a heat generating portion of each of the plurality of heating resistors (14). The cavity section (19) includes a concave portion (20) formed in the surface of the supporting substrate (11) and the heat storage layer (13) in which the concave portion (20) is closed and the surface thereof is exposed to the cavity section (19).

Abstract: A thermal print head includes a substrate, a glaze layer formed on the substrate and provided with a heating resistor support portion extending in a primary scanning direction and having an arc-like cross-sectional shape when seen in a direction perpendicular to the primary scanning direction, an electrode layer including a plurality of individual electrodes, each provided with a first strip-shaped portion arranged along the primary scanning direction, each of the first strip-shaped portions formed on the heating resistor support portion, and a common electrode provided with a plurality of second strip-shaped portions arranged along the primary scanning direction, each of the second strip-shaped portions formed on the heating resistor support portion; and a resistor layer including heating portions heated by applying an electric current from the electrode layer and electrode covering portions each configured to cover a gap between the first and second strip-shaped portions.

Abstract: A thermal head has a heat storage layer bonded onto a surface of the substrate, a heating resistor provided on the heat storage layer, and a pair of electrode portions connected to the heating resistor. The heating resistor has a heating portion which does not overlap the pair of electrode portions. A hollow portion is provided in a region of at least one of the surface of the substrate and a surface of the heat storage layer, the region being opposed to the heating resistor. A center line of the hollow portion is shifted with respect to a center line of a heating portion of the heating resistor.

Abstract: The disclosure generally relates to a modular printhead configured for ease of access and quick replacement of the printhead. In one embodiment, the disclosure is directed to an integrated printhead which includes: a printhead die supporting a plurality of micropores thereon; a support structure for supporting the printhead die; a heater interposed between the printhead die and the support structure; and an electrical trace connecting the heater to a supply source. The support structure accommodates the electrical trace through a via formed within it so as to form a solid state printhead containing all of the connections within and providing easily replaceable printhead.

Abstract: Provided is a heating resistor element (1), including: an insulating substrate (9); a heat accumulating layer (10) bonded to a surface of the insulating substrate (9); and a heating resistor (11) provided on the heat accumulating layer (10), in which: on at least one of bonded surfaces (9a) between the insulating substrate (9) and the heat accumulating layer (10), at least one of the insulating substrate (9) and the heat accumulating layer (10) is provided with a concave portion (16) in a region opposed to the heating resistor (11) to form a hollow portion (17); and the hollow portion (17) includes an inner surface on a side of the insulating substrate (9), the inner surface being processed to have surface roughness (Ra) of 0.2 ?m or more. Accordingly, heat accumulation in a gas of the hollow portion (17) can be suppressed to improve printing quality.

Abstract: In order to secure printing quality, provided is a head unit (10) including: a thermal head (9), including a heating body (15) formed on one surface of a glass substrate made of a transparent glass material, the heating body being configured to generate heat when supplied with external power; and a support body (11) which is laminated onto the glass substrate in a stacked state, in which the glass substrate and the support body (11) include a plurality of lamination reference marks (21) and a plurality of head positioning reference marks (23), respectively, which are disposed so as to be mutually aligned in a direction along the one surface of the glass substrate.

Abstract: 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.

Abstract: One or more arrays of heating elements are configured with insulating regions to prevent the dissipation of heat to unintended regions of a thermochromic substrate. Methods include printing and arranging impressions on a two-sided substrate avoiding bleeding and other problems more-commonly associated with traditional two-sided thermal printing techniques. A simple and reliable thermal printing system is provided for use in ballot marking, including several mechanisms for receiving and detecting the orientation of a substrate within a thermal printing apparatus.

Abstract: An optical recording/reproducing apparatus having a label printer for printing labels on an optical disk and a method for printing labels on an optical disk. The optical recording/reproducing apparatus includes an optical disk drive unit recording and reproducing information on a recording surface of an optical disk, a label printer module printing labels on a label surface of the optical disk using thermal transfer, and a controller controlling a label printing operation of the optical disk drive unit and the label printer module, wherein the label printer module includes a ribbon cartridge in which a thermal transfer ribbon to which dyes are attached is wound and which is disposed to face the label surface of the optical disk mounted in the optical disk drive unit, and a thermal printhead transferring the dyes attached to the thermal transfer ribbon onto the label surface of the optical disk using thermal transfer.

Abstract: Provided is a thermal head that is high in durability and reliability with increased printing efficiency as well as increased manufacturing yields. The thermal head (1) includes: a support substrate (12) including a concave portion (23) having an opening portion (23a) formed in a surface of the support substrate (12); an upper substrate (14) having an external dimension which is smaller than an external dimension of the support substrate (12) and is slightly larger than an external dimension of the opening portion (23a), for closing the opening portion (23a) when bonded to the surface of the support substrate (12) in a stacked state; and a heating resistor (15) formed on a surface of the upper substrate (14) in a position opposed to the concave portion (23) of the support substrate (12).

Abstract: A thermal head is disclosed. The thermal head includes a heat generating element row in which plural heat generating elements are arrayed in a main scanning direction and a glaze that stores heat generated from the respective heat generating elements. The thermal head records an image on a recording medium by causing the respective heat generating elements to generate heat while conveying the recording medium in a sub-scanning direction. A plurality of the heat generating element rows are arrayed in the sub-scanning direction. The glaze includes plural convex portions arranged in the sub-scanning direction in association with the number of arrays of the heat generating element rows. The heat generating elements are arranged on upper sides of the convex portions, respectively.

Abstract: A thermal head (X1) is provided with a substrate (10), a plurality of heat generating elements (H), a first electrode (31), and a second electrode (32). The heat generating elements (H) are arranged on the substrate (10) The first electrode (31) is provided with a plurality of first connecting sections (311) and a plurality of first conductive sections (312). Each of the first connecting sections (311) is connected to one end portion of each of the heat generating elements (H). Each of the first conductive sections (312) is connected to each of the first connecting sections (311) at one end. The second electrode (32) is provided with a plurality of second connecting sections (321) and a plurality of second conductive sections (322). Each of the second connecting sections (321) is connected to the other end portion of each of the heat generating elements (H). Each of the second conductive sections (322) is connected to each of the second connecting sections (321) at one end.

Abstract: Provided is a thermal head with enhanced strength and improved thermal efficiency including a cavity portion formed therein at a position corresponding to a heating resistor. Employed is a thermal head (1) including: a support substrate (3) including a concave portion (2) formed in its front surface; an upper substrate (5) bonded in a stacked state to the front surface of the support substrate (3); a heating resistor (7) provided on the front surface of the upper substrate (5) at a position corresponding to the concave portion (2); a pair of electrode portions (8) provided on both sides of the heating resistor (7); and a concave portion (20) formed in the front surface of the upper substrate (5) on a side of the pair of electrode portions (8), the concave portion being provided between the pair of electrode portions (8).

Abstract: A heating device capable of evenly heating a thermal recording medium without increasing the cost of the device is disclosed. The heating device evenly heats the recording surface of a thermally-reversible recording card by conducting the heat energy transferred from a heat generating member by way of a heating member, made of aluminum having high heat conductivity and high heat capacity characteristics. By this feature, it becomes possible to accurately erase the information recorded on the recording card and to use an inexpensive heat generating member as the heat generating member.

Abstract: A thermal head includes a substrate; a plurality of driver ICs configured to be arranged in a main scanning direction; a heater element configured to include a heat storage layer, a heating resistor layer which is made of a plurality of pairs of effective heating portions, and an electrode layer which is patterned to supply electricity to the heating resistor layer; and a protective layer configured to cover a surface of the heater element, wherein the folded electrode is formed by adjusting an area thereof such that a heat distribution of each heating resistor becomes uniform. In such a thermal head, the number of manufacturing processes or the cost does not increase and a heat distribution becomes uniform, so that a good printing result having good a degree of gloss and image can be obtained.

Abstract: Provided is a thermal head in which, even when an upper plate substrate and a lower plate substrate are in a bonded state, a thickness of the upper plate substrate is adjusted to an appropriate value to allow an improvement in thermal efficiency. Adopted is a thermal head including: a support substrate; an upper plate substrate having a back surface thereof bonded to a top surface of the support substrate; a heating resistor provided on the upper plate substrate; a concave portion formed in a region of at least one of the top surface of the support substrate and the back surface of the upper plate substrate, which opposes the heating resistor; and a through portion formed in the upper plate substrate, which passes through the upper plate substrate from a top surface of the upper plate substrate to the top surface of the support substrate in a plate thickness direction.