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    • 2. 发明授权
    • Thermal head and method of making the same
    • 热敏头及其制作方法
    • US5317341A
    • 1994-05-31
    • US818381
    • 1992-01-09
    • Yutaka Tatsumi
    • Yutaka Tatsumi
    • B41J2/335
    • B41J2/33525B41J2/33535B41J2/3355B41J2/3356B41J2/3359Y10T29/49083
    • The present invention provides a thermal head capable of preventing any chipping between a glaze layer and a protective film, increasing an angle of separation in a thermal transfer ribbon and eliminating any step of abrading the protective film to prevent the separation of the thermal transfer ribbon and the darkened background of the heat-sensitive sheet, and a method of making such a thermal head.The thermal head includes a glaze layer 12 formed as a heat-accumulating layer on a substrate 11, resistance and electrode layers 13, 14 and 15 formed on the glaze layer 12 and a protective film 16 formed to cover the entire surface of the thermal head. The edge of the glaze layer 12 is totally cut with the upper cut edge thereof being rounded. The protective film 16 is formed directly on the cut edge of the glaze layer and the substrate. After the glaze layer has been formed, the edge portion of the glaze layer 12 is cut until reaching the substrate 11. Thereafter, the glaze layer is heated at a temperature equal to or higher than its softening point to round the upper cut edge of the glaze layer. The other layers are then formed. The formed layers are then covered with the protective film 16. Finally, a portion of the protective film 16 adhered to the substrate is cut at a position adjacent to the upper rounded edge of the glaze layer.
    • 本发明提供一种热敏头,其能够防止釉层与保护膜之间的任何碎裂,增加热转印带中的分离角度,并消除研磨保护膜的任何步骤,以防止热转印带和 感热片的背景变黑,以及制造这种热敏头的方法。 热敏头包括在基板11上形成为蓄热层的釉层12,形成在釉层12上的电阻和电极层13,14和15以及形成为覆盖热敏头的整个表面的保护膜16 。 釉层12的边缘被完全切割,其上切割边缘是圆形的。 保护膜16直接形成在釉层和基板的切割边缘上。 在形成釉层之后,切割釉层12的边缘部分直到到达基板11.此后,将釉层在等于或高于其软化点的温度下加热以绕过釉层的上切割边缘 釉层。 然后形成其它层。 然后用保护膜16覆盖形成的层。最后,在与釉层的上圆形边缘相邻的位置处切割粘附到基底上的保护膜16的一部分。
    • 4. 发明授权
    • Thermal head producing method
    • 热敏头制作方法
    • US6010754A
    • 2000-01-04
    • US978281
    • 1997-11-25
    • Yutaka Tatsumi
    • Yutaka Tatsumi
    • B41J2/335B05D3/06
    • B41J2/3351B41J2/33515B41J2/3353B41J2/3356B41J2/33565B41J2/3357B41J2/3359
    • A thermal head producing method in which dispersion of resistance values of heating resistors in each thermal head and dispersion of the resistance values of the heating resistors per dot unit are made uniform to improve printing quality. A glaze layer is formed on a substrate and a heating resistor composed of a thin film resistor material of a mixed composition of a high melting point metal and an insulating material is formed on the glaze layer. First and second pattern conductors for providing common and separate electrodes are formed on the heating resistor and, after a protective film is formed to cover the first and second pattern conductors and the heating resistor, the heating resistor is heated so as to be a higher temperature than a dot temperature required for a printing operation. Preferably, after a resistor film formed on the glaze layer is annealed under vacuum to prepare the heating resistor, the first and second pattern conductors are formed on the heating resistor, and the protective film is formed in the same manner as described above.
    • 一种热头制造方法,其中使每个热敏头中的加热电阻器的电阻值的分散和每个点单位的加热电阻器的电阻值的分散均匀,以提高打印质量。 在基板上形成釉层,在釉层上形成由高熔点金属和绝缘材料的混合组合物的薄膜电阻体构成的发热电阻体。 在加热电阻器上形成用于提供公共和分离的电极的第一和第二图案导体,并且在形成保护膜以覆盖第一和第二图案导体和加热电阻器之后,加热电阻器被加热到​​更高的温度 比打印操作所需的点温度高。 优选地,在形成在釉层上的电阻膜在真空下退火以制备加热电阻器之后,在加热电阻器上形成第一和第二图案导体,并且以与上述相同的方式形成保护膜。
    • 6. 发明授权
    • Apparatus for controlling driving of thermal printhead
    • 用于控制热打印头驱动的装置
    • US6008831A
    • 1999-12-28
    • US894588
    • 1997-08-22
    • Masatoshi NakanishiYutaka TatsumiKunio Motoyama
    • Masatoshi NakanishiYutaka TatsumiKunio Motoyama
    • B41J2/355B41J2/36
    • B41J2/3555B41J2/355B41J2/36
    • A plurality of shift register groups 13a-13d each consisting of a plurality of registers are provided to store a next one of printing data, a current one of the printing data, a predetermined number of previous ones of the printing data and a predetermined number of previous ones of the printing data for an adjacent heating dot. A plurality of pattern discerning circuits 14a-14d are also provided to consecutively discern history patterns of respective heating dots and output corresponding driving data, so that the printing energy for a heating dot is made smaller when its next one of the printing data stored in the shift register group 13a-13d is "0" than when the next one of the printing data is "1".
    • PCT No.PCT / JP96 / 00397 Sec。 371日期1997年8月22日 102(e)日期1997年8月22日PCT 1996年2月21日PCT PCT。 公开号WO96 / 26073 日期1996年8月29日提供了由多个寄存器组成的多个移位寄存器组13a-13d,以存储打印数据中的下一个,打印数据中的当前打印数据,打印数据中的预定数量的先前打印数据 以及相邻加热点的预定数量的打印数据的预定数量。 还提供了多个图案识别电路14a-14d以连续地辨别各个加热点的历史图案并输出相应的驱动数据,使得当下一个打印数据存储在 移位寄存器组13a-13d比下一个打印数据为“1”时为“0”。