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    • 8. 发明授权
    • Reversible thermosensitive recording medium, and image forming and erasing method
    • 可逆热敏记录介质,以及成像和擦除方法
    • US06177383B1
    • 2001-01-23
    • US09274799
    • 1999-03-23
    • Tetsuya AmanoKazumi SuzukiAtsushi KutamiYoshihiko HottaTsuyoshi WatanabeRyouji FurutaTakashi Ukachi
    • Tetsuya AmanoKazumi SuzukiAtsushi KutamiYoshihiko HottaTsuyoshi WatanabeRyouji FurutaTakashi Ukachi
    • B41M540
    • B41M5/42B41M5/363B41M5/41
    • A reversible thermosensitive recording medium is provided, comprising a supporting substrate, a reversible thermosensitive recording layer and an overcoat layer, formed in the order recited, in which the recording layer changes transparency or color tone reversibly with temperature. The overcoat layer is formed to have a peak temperature of at most 155° C. in a tan &dgr; vs. temperature curve, wherein tan &dgr; is defined by G′/G″, with dynamic modulus of elasticity represented by G′ and dynamic elastic loss represented by G″. This thermosensitive recording medium is capable of satisfactorily carrying out the formation and erasure of images with a heating device, such as a thermal printhead, and overcoming difficulties such as the occurrence of cracks and portions of the overcoat layer being removed therefrom and then sticking to heating elements of the thermal printhead, which are caused especially by the application of heating pulses for shorter periods of time and/or at increased pressures during repeated image formation and erasure processing.
    • 提供了一种可逆热敏记录介质,其包括支撑衬底,可逆热敏记录层和外涂层,其按照所述顺序形成,其中记录层随着温度可逆地改变透明度或色调。 形成外涂层在tanδ对温度曲线中具有至多155℃的峰值温度,其中tanδ由G'/ G“定义,具有由G'表示的动态弹性模量和动态 由G“表示的弹性损失。 这种热敏记录介质能够令人满意地执行图像的形成和擦除,其中加热装置例如热打印头,并且克服诸如发生裂纹和外涂层的部分被从其中除去的困难,然后粘附到加热 特别是通过在重复图像形成和擦除处理期间施加加热脉冲较短时间和/或在增加的压力下引起热敏打印头的元件。
    • 9. 发明授权
    • Information recording card, and information recording and recognition
methods using the card
    • 信息记录卡,以及使用该卡的信息记录和识别方法
    • US5471044A
    • 1995-11-28
    • US194348
    • 1994-02-08
    • Yoshihiko HottaMakoto KawaguchiTetsuya Amano
    • Yoshihiko HottaMakoto KawaguchiTetsuya Amano
    • G06K19/08G06K19/00
    • G06K19/083
    • A card is composed of a reversible thermosensitive recording portion capable of recording information therein, and an irreversible recording portion capable of recording information therein. An information recording method uses the card in which an numerical information is recorded in the reversible thermosensitive recording portion, and an information which has substantially the same contents as those of the numerical information recorded in the reversible thermosensitive recording portion is recorded in the irreversible recording portion for preventing improper alternation of the numerical information recorded in the reversible thermosensitive recording portion. The numerical information recorded in the reversible thermosensitive recording portion and the information recorded in the irreversible recording portion are recognized by an optical device.
    • 卡由能够记录信息的可逆热敏记录部分和能够在其中记录信息的不可逆记录部分组成。 信息记录方法使用其中记录数字信息的卡在可逆热敏记录部分中,并且具有与记录在可逆热敏记录部分中的数字信息基本相同的内容的信息被记录在不可逆记录部分中 用于防止记录在可逆热敏记录部分中的数字信息的不当交替。 记录在可逆热敏记录部分中的数字信息和记录在不可逆记录部分中的信息由光学装置识别。