Abstract: A reversible thermosensitive recording medium including an electronic information recording sheet having at least an electronic information recording element projecting from a surface thereof, a first sheet having a through hole into which the electronic information recording element can be inserted, and a second sheet having a cut-out portion capable of housing the entire electronic information recording sheet, wherein the second sheet houses in the cut-out portion the entire electronic information recording sheet, with being laid over the first sheet, and the electronic information recording element inserted into the through hole.

Abstract: A reversible thermosensitive recording medium including an electronic information recording sheet having at least an electronic information recording element projecting from a surface thereof, a first sheet having a through hole into which the electronic information recording element can be inserted, and a second sheet having a cut-out portion capable of housing the entire electronic information recording sheet, wherein the second sheet houses in the cut-out portion the entire electronic information recording sheet, with being laid over the first sheet, and the electronic information recording element inserted into the through hole.

Abstract: A reversible thermosensitive recording medium including an electronic information recording sheet having at least an electronic information recording element projecting from a surface thereof, a first sheet having a through hole into which the electronic information recording element can be inserted, and a second sheet having a cut-out portion capable of housing the entire electronic information recording sheet, wherein the second sheet houses in the cut-out portion the entire electronic information recording sheet, with being laid over the first sheet, and the electronic information recording element is inserted into the through hole.

Abstract: A disclosed information recording apparatus includes an erasing unit configured to erase prerecorded information on recording media capable of being colored and decolored by heat; a recording unit configured to record information on the recording media from which the prerecorded information is erased; and a control unit configured, when a recording request is received, to cause the recording unit to start recording information on a first one of the recording media and to cause the erasing unit to start erasing prerecorded information on a second one of the recording media.

Abstract: To provide a reversible thermosensitive recording medium comprising a support, a thermosensitive recording layer formed on the support, and a protective layer formed on the thermosensitive recording layer, wherein the thermosensitive recording layer contains an electron donative coloring compound and an electron acceptive compound, and the color tone reversibly changes depending on the temperature, and the protective layer contains a polymer of a composition containing two kinds of acrylate compounds selected from an acrylate compound having a pentaerythritol group and an acrylate compound having a dipentaerythritol group.

Abstract: A disclosed information recording apparatus includes an erasing unit configured to erase prerecorded information on recording media capable of being colored and decolored by heat; a recording unit configured to record information on the recording media from which the prerecorded information is erased; and a control unit configured, when a recording request is received, to cause the recording unit to start recording information on a first one of the recording media and to cause the erasing unit to start erasing prerecorded information on a second one of the recording media.

Abstract: A reversible thermosensitive recording medium including an electronic information recording sheet having at least an electronic information recording element projecting from a surface thereof, a first sheet having a through hole into which the electronic information recording element can be inserted, and a second sheet having a cut-out portion capable of housing the entire electronic information recording sheet, wherein the second sheet houses in the cut-out portion the entire electronic information recording sheet, with being laid over the first sheet, and the electronic information recording element is inserted into the through hole.

Abstract: To provide a reversible thermosensitive recording medium comprising a support, a thermosensitive recording layer formed on the support, and a protective layer formed on the thermosensitive recording layer, wherein the thermosensitive recording layer contains an electron donative coloring compound and an electron acceptive compound, and the color tone reversibly changes depending on the temperature, and the protective layer contains a polymer of a composition containing two kinds of acrylate compounds selected from an acrylate compound having a pentaerythritol group and an acrylate compound having a dipentaerythritol group.

Abstract: A reversible thermosensitive recording medium comprising at least a reversible thermosensitive recording layer provided on a supporting substrate and, a protective layer provided on the recording layer, wherein the recording layer is arranged so as to develop a first color therein when it is heated to a specific temperature level between a second temperature and a third temperature which is higher than the second temperature and then cooled to a first temperature level between normal temperature and the second temperature which is higher than the normal temperature, while so as to develop a second color therein when it is heated to another temperature level more than a fourth temperature which is higher than the third temperature and then cooled to a particular temperature which is lower than the first temperature, and the protective layer contains at least a lubricant showing the melting point ranging from higher than or equal to the first temperature to lower than or equal to the second temperature and has

Abstract: A reversible thermosensitive recording medium comprising at least a reversible thermosensitive recording layer provided on a supporting substrate and, a protective layer provided on the recording layer, wherein the recording layer is arranged so as to develop a first color therein when it is heated to a specific temperature level between a second temperature and a third temperature which is higher than the second temperature and then cooled to a first temperature level between normal temperature and the second temperature which is higher than the normal temperature, while so as to develop a second color therein when it is heated to another temperature level more than a fourth temperature which is higher than the third temperature and then cooled to a particular temperature which is lower than the first temperature, and the protective layer contains at least a lubricant showing the melting point ranging from higher than or equal to the first temperature to lower than or equal to the second temperature and has

Abstract: A reversible thermosensitive recording medium comprising an concealing layer provided between a reversible thermosensitive recording layer which is reversibly changed in its color by heat and a photo-thermal conversion layer which absorbs light with generating heat, wherein the concealing layer has an optical characteristic that the ratio of a light absorptivity of light having 555 nm wavelength, in comparison with a light absorptivity of laser light wavelength, is 80% or less. This reversible thermosensitive recording medium has a concealing layer to conceal the color of the photo-thermal conversion layer, thereby the visibility and the contrast of the obtained images are significantly improved, further more, durability in repeated used is also significantly improved.