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    • 1. 发明授权
    • Counterfeit-proof volume hologram multilayer structure, and counterfeit-proof volume hologram seal
    • 防伪体积全息图多层结构,防伪体积全息图密封
    • US06852397B2
    • 2005-02-08
    • US10288234
    • 2002-11-04
    • Tetsuya ToshineKenji Ueda
    • Tetsuya ToshineKenji Ueda
    • G03H1/04G09F3/02B32B5/16G02B5/32
    • G03H1/0248G03H1/0011G03H1/0256G03H2240/54G03H2250/12G03H2250/34G03H2260/30G09F3/0292Y10T428/24942Y10T428/25
    • The present invention relates to a counterfeit-proof volume hologram multilayer structure capable of securely preventing a counterfeiter from replicating a volume hologram recorded therein. The multilayer structure comprises a transparent surface protective layer, a volume hologram layer, and an adhesive layer which are sequentially laminated and is characterized in that particles having particle diameter of 350 nm or more are dispersed in at least one of the transparent surface protective layer, the volume hologram layer, and the adhesive layer and that the refractive index ratio (nF/nB) is set to be not less than 1.05 or not greater than 0.95, wherein nF is the refractive index of the particles and nB is the refractive index of the medium in which the particles are dispersed, or characterized in that at least either the refractive index ratio (nP/nH) between the transparent surface protective layer and the volume hologram layer or the refractive index ratio (nH/nA) between the volume hologram layer and the adhesive layer is set to be not less than 1.08, wherein nP is the refractive index of the transparent surface protective layer, nH is the refractive index of the volume hologram layer, and nA is the refractive index of the adhesive layer.
    • 本发明涉及一种防伪体积全息图多层结构,能够可靠地防止伪造者复制其中记录的体积全息图。 多层结构包括依次层叠的透明表面保护层,体积全息图层和粘合剂层,其特征在于粒径为350nm以上的粒子分散在至少一个透明表面保护层, 体积全息图层和粘合剂层,并且折射率比(nF / nB)设定为不小于1.05或不大于0.95,其中nF是颗粒的折射率,nB是折射率 其中颗粒分散的介质,或其特征在于,透明表面保护层和体积全息图层之间的折射率比(nP / nH)或体积全息图之间的折射率(nH / nA) 层和粘合层设定为不小于1.08,其中nP是透明表面保护层的折射率,nH是volu的折射率 我的全息图层,nA是粘合剂层的折射率。
    • 5. 发明授权
    • Magnetic card
    • 磁卡
    • US07090935B2
    • 2006-08-15
    • US10787259
    • 2004-02-27
    • Minoru AzakamiKenji UedaTetsuya ToshineToru NishiokaAtsushi UmezawaAkihiro Mizumura
    • Minoru AzakamiKenji UedaTetsuya ToshineToru NishiokaAtsushi UmezawaAkihiro Mizumura
    • G11B5/80
    • G06K19/06196G03H1/0248G03H1/0252G03H2250/40
    • A magnetic card of the invention comprises a card substrate 11 on which a magnetic layer 12, a thin-film layer 13 formed of a metal or a metal compound for concealing the magnetic layer, a printed layer 14 and a volume hologram layer 15 are successively provided, wherein magnetic information is recorded on or read from a volume hologram layer side. The volume hologram layer 15 is composed essentially of a photosensitive material comprising a cationic polymerizable compound, a radical polymerizable compound, a photo-radical polymerization initiator system that is sensitive to light of a specific wavelength to polymerize the radical polymerizable compound, and a photo-cationic polymerization initiator system that is less sensitive to the light of a specific wavelength but sensitive to light of another wavelength to polymerize the cationic polymerizable compound. The magnetic card is improved in terms of wear resistance to sliding contact with a magnetic head, and ensures precise writing or reading of magnetic recording data, with improved ability to prevent forgery.
    • 本发明的磁卡包括卡片基板11,其上依次包括磁性层12,由金属形成的薄膜层13或用于隐藏磁性层的金属化合物,印刷层14和体积全息图层15 其中磁信息被记录在体积全息图层侧或从体积全息图层侧读取。 体积全息图层15基本上由包含阳离子聚合性化合物,自由基聚合性化合物,对特定波长的光敏感而使自由基聚合性化合物聚合的光自由基聚合引发剂体系的光敏材料构成, 阳离子聚合引发剂体系,其对特定波长的光敏感但对另一波长的光敏感,以聚合阳离子可聚合化合物。 磁卡在与磁头滑动接触的耐磨性方面得到改善,并且确保磁记录数据的精确写入或读取,具有防止伪造的能力。
    • 6. 发明授权
    • Hologram transfer foil
    • 全息转印箔
    • US06994937B2
    • 2006-02-07
    • US09843891
    • 2001-04-30
    • Tetsuya ToshineHiroyuki OhtakiKenji Ueda
    • Tetsuya ToshineHiroyuki OhtakiKenji Ueda
    • G03H1/04
    • B44C1/1716G03H1/0011G03H1/0248G03H1/0252G03H2240/50G03H2250/10G03H2250/35G03H2250/40G03H2250/42
    • The invention provides a hologram transfer foil (1) comprising, that includes, in order from top to bottom, a substrate (7), a volume hologram layer (2) releasably stacked on substrate (7) and comprising a volume hologram in a cured resin layer, a first heat seal layer (3) and a second heat seal layer (4). In use, the hologram transfer foil (1) is applied on the second heat seal layer (4) side over an application member. The adhesion force of volume hologram layer (2) to the application member is larger than a material fracture force for the volume hologram layer or the application member, so that the hologram transfer layer can be applied by thermo-compression to the application member. This hologram transfer foil is useful for illegal copying of the hologram layer because when the volume hologram is forcibly peeled from the application, a material fracture of the volume hologram layer or application member occurs. When a colored layer functioning as a back layer is provided, it is possible to obtain a hologram transfer foil which eliminates any adverse influence of a coloring component on the volume hologram layer.
    • 本发明提供了一种全息转印箔(1),其包括从顶部到底部的顺序包括基底(7),可释放地堆叠在基底(7)上的体积全息图层(2),并且包括固化的体积全息图 树脂层,第一热封层(3)和第二热封层(4)。 在使用中,全息转印箔(1)在施加构件上施加在第二热封层(4)侧上。 体积全息图层(2)对施加构件的粘附力大于体积全息图层或施加构件的材料断裂力,使得可以通过热压将全息图转印层施加到施加构件。 该全息图转印箔对于非法复制全息图层是有用的,因为当体积全息图被强制地从应用中剥离时,会发生体积全息图层或应用构件的材料断裂。 当提供用作背层的着色层时,可以获得消除着色组分对体积全息图层的任何不利影响的全息图转印箔。