Ricoh Company, Ltd.

Nobuo Yamada

Yoshihiko Hotta

Fumihito Masubuchi

Kunichika Morohoshi

Makoto Kawaguchi

Yukio Konagaya

Toru Nogiwa

Takao Igawa

Tsutomu Kagawa

Akihide Ito

Atsushi Kutami

Tetsuya Amano

Tohru Nogiwa

Katsuyoshi Kodama

A reversible thermosensitive recording material containing a support which is composed of a first film, an adhesive layer formed on the first film and a second film formed on the adhesive layer, with the adhesive strength between the first film and the second film being 0.5 kgf/25 mm or more in terms of the average tensile load at an angle of 180.degree. measured in accordance with JIS K 6854, and a reversible thermosensitive recording layer formed on the support, capable of reversibly assuming a transparent state and a white opaque state depending on the temperature thereof, which recording layer contains a matrix resin and an organic low-molecular-weight mateiral dispersed in the form of finely-divided particles in the matrix resin.

Reversible thermosensitive recording material

A reversible thermosensitive recording label for reversibly forming images and erasing recorded images thereon is composed of a reversible thermosensitive recording member having a temperature-dependent transparency which reversibly changes depending upon the temperature thereof, an adhesive layer provided on the back side of the reversible thermosensitive recording member, and a disposable release sheet applied to the adhesive layer. A reversible thermosensitive recording card is composed of the reversible thermosensitive recording member, the adhesive layer provided on the back side of the reversible thermosensitive recording member, and a label receiving material to which the adhesive layer is applied.

Reversible thermosensitive recording label and reversible

A card processing method of recording information or displaying, rewriting or erasing recorded information in a card having a magnetic recording portion, and a rewritable display portion which employs a reversible thermosensitive recording material, in which the step (a) of reading recorded information in the magnetic recording portion and the step (b) of rewriting the recorded information in the magnetic recording portion are carried out prior to the step (c) of erasing recorded information from the rewritable display portion and the step (d) of writing information in the rewritable display portion.

Card processing method

A method of compensating for the distortion in a recording layer of a reversible thermosensitive recording medium, for which transparency of the recording layer is changeable, depending upon the temperature thereof, and the recording layer is capable of forming images and erasing the images reversibly. The distortion in the recording layer is caused by the repeated image formation by image formation means and/or image erasure by image erasing means. In this method, stress is applied to the recording layer before and/or after image formation by the movement of the recording medium relative to the image formation means, in a direction different from the direction of the application of stress in the course of a previous image formation or image erasure. Instead of the stress, thermal energy can be employed for compensating for the distortion in the recording layer.

Method of compensating for distortion in recording layer in reversible

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Numazu, Japan

Nobuo Yamada