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公开(公告)号：US20210354496A1
公开(公告)日：2021-11-18
申请号：US17278253
申请日：2019-08-27
发明人： Won Gyun CHOE , Su Dong KIM , Hong Keon KIM , Hyun Soo KIM , E Den KIM , Hye Jun CHOI
IPC分类号： B42D25/378
摘要： The present invention relates to a security device comprising a colloidal crystal which exhibits excellent visibility and is also easily manufactured. The security device, according to the present invention, comprises: a substrate; a groove part formed on the substrate; a colloidal crystal positioned in the groove part; and an aging film. The security device, according to the present invention, exhibits excellent security and visibility, and thus may be used for securities, credit cards, security cards, anti-forgery products, etc.
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公开(公告)号：US11590792B2
公开(公告)日：2023-02-28
申请号：US17278253
申请日：2019-08-27
发明人： Won Gyun Choe , Su Dong Kim , Hong Keon Kim , Hyun Soo Kim , E Den Kim , Hye Jun Choi
IPC分类号： B42D25/378 , B42D25/373 , B42D25/364 , G02B5/28 , B42D25/41
摘要： The present invention relates to a security device comprising a colloidal crystal which exhibits excellent visibility and is also easily manufactured. The security device, according to the present invention, comprises: a substrate; a groove part formed on the substrate; a colloidal crystal positioned in the groove part; and an aging film. The security device, according to the present invention, exhibits excellent security and visibility, and thus may be used for securities, credit cards, security cards, anti-forgery products, etc.
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3.发明申请公开(公告)号：US20220024243A1
公开(公告)日：2022-01-27
申请号：US17294857
申请日：2019-01-10
发明人： Sung Hyun JOO , Il Hoon CHOI , Hyun Jun KIM , Hyun Jin OH , Se Hyun LEE , Yang Jae LEE
IPC分类号： B42D25/382 , B42D25/21 , G01N21/64 , C09K11/08 , C08K3/013
摘要： Disclosed is a plastic product with authenticity to be determined, the plastic product including: a base made of a plastic material, and a luminescent material included in the base and configured to emit light including a second wavelength with respect to incident light including a first wavelength, in which the determination of the authenticity is performed by irradiating the plastic product with the incident light and then detecting the emitted light. According to the present invention, it is possible to easily determine the authenticity of the plastic product by a simple method of detecting a spectrum of the light emitted from the plastic product.
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公开(公告)号：US20110180730A1
公开(公告)日：2011-07-28
申请号：US13122198
申请日：2009-08-31
申请人： Jong Jae Kim , Sung Hyun Joo , Sun Woong Shin , Jae Young Choi , Hee Jeong Ban , Yong Hoon Kang , Sang Cheol Lee , Eu Gene Kim
发明人： Jong Jae Kim , Sung Hyun Joo , Sun Woong Shin , Jae Young Choi , Hee Jeong Ban , Yong Hoon Kang , Sang Cheol Lee , Eu Gene Kim
IPC分类号： G07D7/12
摘要： The present disclosure provides a counterfeit detector which identifies whether a security document or the like is authentic by irradiating UV rays from UV LEDs onto fluorescent security marks formed on the security document. UV rays emitted from the UV LEDs are independently condensed and reflected, thus enabling a user to more effectively identify the fluorescent security marks that are formed in special shapes using UV fluorescent material.
摘要翻译： 本公开提供了一种伪造检测器，其通过将来自UV LED的紫外线照射到形成在安全文件上的荧光安全标记上来识别安全文件等是否是真实的。 从UV LED发射的紫外线被独立地冷凝和反射，从而使用户能够更有效地识别使用UV荧光材料形成为特殊形状的荧光安全标记。
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5.发明授权公开(公告)号：US09649870B2
公开(公告)日：2017-05-16
申请号：US14374440
申请日：2013-01-31
发明人： Jong-Jae Kim , Sung-Hyun Joo , Byeong-Hun Park , Myung-Seuk Kang
IPC分类号： G02B27/22 , B29C45/00 , B29C47/00 , B32B37/00 , B29B7/00 , B42D25/342 , B42D25/21 , B29D11/00 , B42D25/29 , G02B3/00 , B29L11/00 , B29C45/14 , B29C45/37 , G02B1/10
CPC分类号： B42D25/342 , B29C45/14811 , B29C45/37 , B29D11/00298 , B29L2011/0016 , B42D25/21 , B42D25/29 , B42D2033/24 , B42D2035/20 , B42D2035/44 , G02B1/10 , G02B1/105 , G02B1/14 , G02B3/0012 , G02B3/0056 , G02B27/2214
摘要： A method for producing a three-dimensional security element and an injection-molded product having the three-dimensional security element and, more specifically, to a method for producing a three-dimensional security element suitable for an in-mold process by using a moiré expansion phenomenon, and for producing an injection-molded product to which the three-dimensional security element is applied. The present invention according to one embodiment comprises a three-dimensional security element and an injection-molded product having the three-dimensional security element, wherein the three-dimensional security element further comprises: a micro lens array to which various types of lenses can be applied; an image array; a primer layer for facilitating adhesion; and a projection film for protecting the three-dimensional security element from heat and pressure. According to the configuration above, three-dimensional effects can be implemented, such as a latent image effect, a floating effect, and an inverted parallax effect, wherein an effect is determined by a period rate and a matching angle between the micro lens array and the image array.
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6.发明授权公开(公告)号：US11541680B2
公开(公告)日：2023-01-03
申请号：US16606452
申请日：2018-04-18
发明人： Shin-hyun Kim , Gun Ho Lee , Won Gyun Choe , Soo Dong Kim , Ju Hee Kang , Hong Keon Kim , Hyun Soo Kim , E Den Kim
摘要： A photonic crystal film, a method for manufacturing the photonic crystal film, and an anti-forgery article comprising the photonic crystal film are disclosed. The photonic crystal film includes a polyurethane-based polymer matrix and colloidal particles dispersed in the polyurethane-based polymer matrix and arranged in a crystal lattice structure. The colloidal particles includes one or more selected from metal nanoparticles, metal oxide nanoparticles, organic nanoparticles, and carbon structure nanoparticles.
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公开(公告)号：US20210168260A1
公开(公告)日：2021-06-03
申请号：US17265752
申请日：2019-09-19
发明人： Chang Jin OH , Jong Gap JEONG , Gwang Hui HONG , Hui Seung SON , Hyeon Jun KIM
IPC分类号： H04N1/32 , B42D25/405 , B41M3/14
摘要： Disclosed is an anti-counterfeiting printed material including: a background part for analyzing a distribution of Cyan Magenta Yellow Black (C/M/Y/K) after performing first color separation of an original image into C/M/Y/K, and printing the original image as C/M/Y/K lines each having an included angle preset according to each distribution; and a latent image part formed in a first region of the background part, and printed with the number of C/M/Y/K lines in a ratio different from the number of C/M/Y/K lines of the background part according to each distribution by performing secondary color separation, into C/M/Y/K, of a second region spaced apart from the first region by a preset distance.
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8.发明申请公开(公告)号：US20210107311A1
公开(公告)日：2021-04-15
申请号：US16606452
申请日：2018-04-18
发明人： Shin-hyun Kim , Gun Ho Lee , Won Gyun; Choe , Su Dong Kim , Ju Hee Kang , Hong Keon Kim , Hyun Soo Kim , E Den Kim
摘要： A photonic crystal film, a method for manufacturing the photonic crystal film, and an anti-forgery article comprising the photonic crystal film are disclosed. The photonic crystal film includes a polyurethane-based polymer matrix and colloidal particles dispersed in the polyurethane-based polymer matrix and arranged in a crystal lattice structure. The colloidal particles includes one or more selected from metal nanoparticles, metal oxide nanoparticles, organic nanoparticles, and carbon structure nanoparticles.
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9.发明授权公开(公告)号：US09721705B2
公开(公告)日：2017-08-01
申请号：US14366026
申请日：2012-12-20
发明人： Won Gyun Choe , Soo Dong Kim
摘要： The present invention relates to a magnetic particle having a high-reflective protective membrane and a method for producing same, especially wherein the magnetic particle includes a magnetic core, a shell formed on the magnetic core, and a high-reflective protective membrane formed on the shell, and the high-reflective protective membrane has low-refractive-index and high-refractive-index membranes. The magnetic particle has advantages that have high brightness and prevent the shell from being damaged by friction with a filler and pressure between rollers during a dispersion step of an ink-making process. Also, the magnetic particle is used for different colored inks, general paint, particulate pigments for vehicles, pigments for cosmetics, catalyst paint, and especially anti-forgery inks, etc., and has advantages that are durable and express colors that existing magnetic pigments fail to.
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10.发明授权公开(公告)号：US08289109B2
公开(公告)日：2012-10-16
申请号：US12784356
申请日：2010-05-20
申请人： Jong Won Yu , Won Gyu Lim , Hyeong Seok Jang , Dong Hoon Shin , Jin Ho Ryu , Hyun Mi Kim , Won Gyun Choe
发明人： Jong Won Yu , Won Gyu Lim , Hyeong Seok Jang , Dong Hoon Shin , Jin Ho Ryu , Hyun Mi Kim , Won Gyun Choe
CPC分类号： H01Q17/00 , H01P1/2005 , H01P1/20381
摘要： An electromagnetic bandgap (EBG) pattern structure includes a nonconductive substrate and a pattern assembly formed on the substrate. The EBG pattern structure also includes regularly arranged closed-loop patterns and open-loop patterns, both of which are made of a conductive material. The EBG pattern structure can be used to manufacture new security products by applying its frequency characteristics to securities or IDs and variously used in security technologies for preventing forgery and alteration because various security codes can be created by adjusting the variables of its EBG pattern.
摘要翻译： 电磁带隙（EBG）图案结构包括非导电衬底和形成在衬底上的图案组件。 EBG图案结构还包括规则排列的闭环图案和开环图案，它们均由导电材料制成。 EBG模式结构可用于通过将其频率特性应用于证券或ID，并且用于防止伪造和变更的安全技术中的各种安全技术来制造新的安全产品，因为可以通过调整其EBG模式的变量来创建各种安全代码。
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