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    • 5. 发明授权
    • Information recording medium, and information recording and reproducing
method
    • 信息记录介质和信息记录和再现方法
    • US5660958A
    • 1997-08-26
    • US480625
    • 1995-06-07
    • Masayuki IijimaSeiji TakeHironori KamiyamaMasato OkabeHiroyuki ObataMinoru Utsumi
    • Masayuki IijimaSeiji TakeHironori KamiyamaMasato OkabeHiroyuki ObataMinoru Utsumi
    • G02F1/1334G02F1/135G03G5/02G03G5/10G03G5/14G11B7/0045C09K19/00G11B7/20G11B7/24
    • G11B7/00454C09K19/601G02F1/135G03G5/02G03G5/10G03G5/14G02F1/1334Y10S430/146Y10T156/1084
    • Information recording media enable images to be recorded and reproduced with high resolution, wherein oozing of liquid crystal material thereof is prevented and the information recorded without unevenness. A first recording medium has an information recording layer comprising a liquid crystal phase and an ultraviolet curing resin phase. The information recording layer is stacked on an electrode layer provided on a substrate by coating a mixed solution of liquid crystal and ultraviolet curing resin material on the surface of the electrode layer and then irradiating the coating by irradiation with ultraviolet rays, thereby forming a cured skin layer of the resin material on the outer surface of the information recording layer. A second recording medium has a transparent electrode layer additionally provided on the information recording layer of the first recording medium. A third recording medium has an electrode layer, a photoconductive layer, an information recording layer, and an electrode layer, in successive order. A fourth recording medium has a transparent insulating layer or semiconductor layer interposed between the photoconductive layer and the information recording layer of the third recording medium. According to an information recording and reproducing method employing the first recording medium, a gradually increasing voltage is applied between a photosensitive member and the recording medium. As a result, the effective voltage applied to the liquid crystal layer can be raised, enabling increased modulation, improved contrast and responsiveness.
    • 信息记录介质能够以高分辨率记录和再现图像,其中防止了液晶材料的渗出,并且不均匀地记录信息。 第一记录介质具有包括液晶相和紫外线固化树脂相的信息记录层。 通过在电极层的表面上涂布液晶和紫外线固化树脂材料的混合溶液,然后通过紫外线照射照射该涂层,将信息记录层堆叠在设置在基板上的电极层上,从而形成固化皮 树脂材料层在信息记录层的外表面上。 第二记录介质具有附加地设置在第一记录介质的信息记录层上的透明电极层。 第三记录介质依次具有电极层,光电导层,信息记录层和电极层。 第四记录介质具有介于光电导层和第三记录介质的信息记录层之间的透明绝缘层或半导体层。 根据使用第一记录介质的信息记录和再现方法,在感光构件和记录介质之间施加逐渐增加的电压。 结果,可以提高施加到液晶层的有效电压,从而能够增加调制,改善对比度和响应性。
    • 6. 发明授权
    • Electrostatic information recording medium and electrostatic information
recording and reproducing method
    • 静电信息记录介质和静电信息记录和再现方法
    • US5587264A
    • 1996-12-24
    • US462563
    • 1995-06-05
    • Masayuki IijimaKyoji DantaniHiroyuki ObataMakoto MatsuoMinoru UtsumiSeiji Take
    • Masayuki IijimaKyoji DantaniHiroyuki ObataMakoto MatsuoMinoru UtsumiSeiji Take
    • G02F1/135G03G5/02G03G15/04G03G15/05G03G15/18G11B9/08G11B11/08G03G15/02
    • G03G5/02G03G15/04072G03G15/05G03G15/18G03G5/0202G11B11/08G11B9/08G02F1/135
    • The electrostatic information recording medium according to the present invention comprises an electrode layer and an electric charge retaining layer. By improving the laminating method of electric charge retaining layer or by improving the layer arrangement or by converting electrostatic information to the visible information or position information, high information retaining property can be obtained and the accumulated electrostatic information can be maintained for long period.In the electrostatic information recording method according to the present invention, an electrostatic information recording medium is placed face-to-face to a photosensitive member having photoconductive layer on an electrode. The image exposure is performed by applying voltage between two electrodes, and the electrostatic information corresponding to the image exposure is recorded on the electrostatic information recording medium. The electrostatic information recorded in the electric charge retaining layer is easily reproduced by reading surface potential and by amplifying and outputting, or by electro-optical reading method, and further, by toner development.The electrostatic information recording medium according to the present invention has excellent memory capacity with information density of 8.times.10.sup.8 bits/cm.sup.2. For example, it is possible to record the information by electrostatic information recording method using a photosensitive member, to record analog, digital, image, sound and (0.1) information, and to apply for electrostatic recording card and the like.
    • 根据本发明的静电信息记录介质包括电极层和电荷保持层。 通过改善电荷保持层的层叠方法或通过改善层布置或将静电信息转换成可见信息或位置信息,可以获得高信息保持性,并且可以长时间保持累积的静电信息。 在根据本发明的静电信息记录方法中,静电信息记录介质与电极上具有光电导层的感光构件面对面放置。 通过在两个电极之间施加电压来执行图像曝光,并且将与图像曝光相对应的静电信息记录在静电信息记录介质上。 记录在电荷保持层中的静电信息可以通过读取表面电位,放大和输出,或者通过电光学读取方法,并且进一步通过调色剂显影容易地再现。 根据本发明的静电信息记录介质具有优良的存储容量,信息密度为8×10 8位/ cm 2。 例如,可以通过使用感光构件的静电信息记录方法来记录信息,以记录模拟,数字,图像,声音和(0.1)信息,并且申请静电记录卡等。
    • 7. 发明授权
    • Electrostatic information-recording media and process for recording and
reproducing electrostatic information
    • US5492783A
    • 1996-02-20
    • US126523
    • 1993-09-24
    • Minoru UtsumiHiroyuki ObataSeiji TakeMasayuki IijimaHironori Kamiyama
    • Minoru UtsumiHiroyuki ObataSeiji TakeMasayuki IijimaHironori Kamiyama
    • G03G5/02G03G15/22G11B9/08G11B11/08G03G13/18
    • G03G15/221G03G15/04072G03G5/02G11B11/08G11B9/08
    • The present invention provides an electrostatic information-recording medium including an electrode layer (13) and a charge-retaining layer, in which said charge-retaining layer is formed of a laminate of a resin layer (11a) having a low glass transition temperature with a heat-resistant, insulating layer (11b), or an electrostatic information-recording medium comprising at least an electrode layer (13) and a charge-retaining layer (11) in which said charge-retaining layer (11) is formed of a polymer layer (12) containing pentafluorostyrene as a monomer component and having a weight-average molecular weight of 10,000 to 2,000,000, or which includes a photoconductive layer (44) and a charge-retaining layer (43) between a pair of electrodes (42) and (45) and is designed to carry out exposure with the application of voltage between both said electrodes (42) and (45) or apply voltage between both said electrodes (42) and (45) while exposure is carried out, thereby forming an electrostatic latent image, which is then carried on said charge-retaining layer (43) by releasing said charge-retaining layer ( 43) from said electrode 42, or which includes a charge transport layer (51) on an electrode (52) and is designed to record information on the surface of said charge transport layer (51) by toner development and then apply electrostatic charges on the surface of said charge transport layer (51) to inject said electrostatic charges into said charge transport layer through an electrically conductive layer of the toner, thereby forming electrostatic information corresponding to the toner information on said charge transport layer. Thus, the electrostatic information-recording medium can thus be improved in terms of the capability to retain electrostatic information. The electrostatic information retained in this electrostatic information-recording medium is very stable because of being accumulated in the charge-carrying layer. Also, the information can be easily reproduced in the form of information of high quality and resolution by detecting a potential difference between the electrode and the surface potential.