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    • 26. 发明申请
    • Optical recording medium, light-transmitting protective sheet used for same, and method for manufacturing them
    • 光记录介质,用于其的透光保护片及其制造方法
    • US20060165941A1
    • 2006-07-27
    • US10520448
    • 2003-07-10
    • Yoshikatsu MasudaYukio UedaEiji HishinumaNaoki Shimada
    • Yoshikatsu MasudaYukio UedaEiji HishinumaNaoki Shimada
    • B32B3/02
    • G11B7/266G11B7/24024G11B7/24056G11B7/256
    • The optically transparent protective sheet is made of cured product of a radiation curable paint in the form of a sheet. The optical recording medium includes an optical recording layer formed on at least one surface of a substrate, an adhesive layer formed on the optical recording layer, and an optically transparent protective layer formed on the adhesive layer, wherein the optically transparent protective layer is formed by adhering the optically transparent protective sheet to the optical recording medium, with intervening the adhesive layer therebetween. Such an optically transparent protective sheet is superior optical characteristics, such as thickness accuracy, a birefringence, and light transmittance, and does not have a residual solvent. The optical recording medium using such an optically transparent protective sheet is superior in the optical characteristics, and is capable of increased capacity. The optical recording medium can be produced with a good productivity at low cost by using the optically transparent protective sheet.
    • 光学透明保护片由片状可辐射固化涂料的固化产物制成。 光记录介质包括形成在基板的至少一个表面上的光学记录层,形成在光学记录层上的粘合剂层和形成在粘合剂层上的光学透明保护层,其中光学透明保护层由 将光学透明保护片粘附到光学记录介质上,并将粘合剂层插入其间。 这种光学透明保护片具有优异的光学特性,例如厚度精度,双折射和透光率,并且不具有残留溶剂。 使用这种光学透明保护片的光记录介质的光学特性优异,能够提高容量。 通过使用光学透明保护片,可以低成本地生产光记录介质。
    • 29. 发明授权
    • Ticket and ticket rewriting apparatus
    • 票和票改写装置
    • US6052137A
    • 2000-04-18
    • US702492
    • 1996-08-27
    • Naoki Shimada
    • Naoki Shimada
    • B42D15/10B41M3/14B41M5/28G02F1/1334G06K19/00G06K19/14G07B11/00G09F9/35G11B13/00B41J5/32
    • B41M3/14B41M5/281G06K19/14G07B11/00G02F1/1334
    • A ticket capable of recording visible information so that the information is difficult to erase and a ticket rewriting apparatus capable recording visible information on conditions of use on the ticket are used to prevent the dishonest use of the ticket. The ticket comprises a base, a rewritable displaying device mounted on one surface of the base and an information recording device formed on the other surface of the base and having a magnetic recording layer. The rewritable displaying device comprises a reversible displaying element having a polymer dispersed liquid crystal film (PDLC film) capable of being repeatedly subjected to a visible information recording and a visible information erasing. Information rewriting requires both heat and an electric field for information rewriting. Conditions of use including the time and date of use are recorded on the rewritable displaying device and the information recording device. The ticket rewriting apparatus comprises a device including a charger and electrodes for applying an electric field to the rewritable displaying unit, and a device including a thermal head for applying heat to the rewritable displaying device.
    • PCT No.PCT / JP95 / 02759 Sec。 371日期:1996年8月27日 102(e)日期1996年8月27日PCT提交1995年12月28日PCT公布。 WO96 / 20092 PCT公开号 日期1996年7月4日使用能够记录可见信息以便信息难以擦除的票据,并且使用能够在票上记录使用条件的可见信息的票据重写装置来防止票据的不诚实使用。 票据包括基座,安装在基座的一个表面上的可重写显示装置和形成在基座的另一表面上并具有磁记录层的信息记录装置。 可重写显示装置包括具有能够重复进行可视信息记录和可见信息擦除的聚合物分散液晶膜(PDLC膜)的可逆显示元件。 信息重写需要热量和电场来进行信息重写。 包含使用时间和使用日期的使用条件被记录在可重写显示装置和信息记录装置上。 票重写装置包括一个装置,它包括充电器和用于向可重写显示单元施加电场的电极,以及包括用于向可重写显示装置施加热量的热头的装置。