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    • 6. 发明授权
    • Reversible thermosensitive recording medium
    • 可逆热敏记录介质
    • US5426086A
    • 1995-06-20
    • US300033
    • 1994-09-02
    • Yoshihiko HottaMakoto KawaguchiTetsuya Amano
    • Yoshihiko HottaMakoto KawaguchiTetsuya Amano
    • B41M5/36B41M5/26
    • B41M5/363
    • A reversible thermosensitive recording medium includes a reversible thermosensitive recording layer which is composed of a matrix resin and an organic low-molecular material which is dispersed in the matrix resin, the transparency of the reversible thermosensitive recording layer being reversibly changeable depending upon the temperature of the reversible thermosensitive recording layer, wherein the reversible thermosensitive recording layer has a softening initiation temperature T.sub.A, the organic low-molecular-weight material has a higher crystallization temperature T.sub.B1 which is 80.degree. C. or more and a lower crystallization temperature T.sub.B2, the softening initiation temperature T.sub.A is between the higher crystallization temperature T.sub.B1 and the lower crystallization temperature T.sub.B2, and the higher crystallization temperature T.sub.B1 and the lower crystallization temperature T.sub.B2 satisfies the relationship of T.sub.B1 -T.sub.B2 .gtoreq.40.degree. C.
    • 可逆热敏记录介质包括由矩阵树脂和分散在基质树脂中的有机低分子材料组成的可逆热敏记录层,可逆热敏记录层的透明度可根据 可逆热敏记录层,其中可逆热敏记录层具有软化初始温度TA,有机低分子量材料具有较高的结晶温度TB1,其结晶温度为80℃或更高,结晶温度TB2较低,软化引发 温度TA在较高的结晶温度TB1和较低的结晶温度TB2之间,较高的结晶温度TB1和较低的结晶温度TB2满足TB1-TB2> / = 40℃的关系。
    • 7. 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。