| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 428030000 | Striated for iridescence | 12 |
| 20080206495 | Decoration panel - A large number of small reflection portions are continuously formed over a back face of a base member opposite the light impinging side, in an arbitrary arrangement. The small reflection portions are each formed to have a boundary surface for reflection, interference, and diffraction of incident light impinging onto the base member, to thereby produce random changes in the brightness of reflection light over the entirety of the decoration panel. A reflection layer is formed on the boundary surfaces of the small reflection portions such that the boundary surfaces function as mirror surfaces and reflect light propagating through the base member toward the front face of the base member. | 08-28-2008 |
| 20080220187 | DOCUMENT AND METHOD OF MAKING DOCUMENT INCLUDING INVISIBLE INFORMATION FOR SECURITY APPLICATIONS - A document includes paper having an average surface roughness of at least about 0.5 microns and including one or more optical brighteners, and includes at least one image thereon wherein the at least one image includes clear binder and light absorbing material that absorbs light only at wavelengths below 350 nm. The image is substantially not detectable to a naked human eye through differential gloss or exposure to light having wavelengths of 365 nm or more, but may be revealed to the naked human eye by exposing the document to light having a wavelength at which the light absorbing material absorbs light. | 09-11-2008 |
| 20080233313 | Multi-colored images viewable under non-visible radiation - A set of colorants for printing a multi-colored image when viewed under non-visible radiation outside of the visible spectrum can include a first colorant and a second colorant. The first colorant can be capable of absorbing non-visible radiation and shifting the wavelength of the non-visible radiation to a visible wavelength, thus producing a visible color. Likewise, the second colorant can be capable of absorbing the non-visible radiation and shifting the wavelength to a second visible wavelength, thus producing a different visible color. | 09-25-2008 |
| 20080311317 | Substrates - The invention relates to improvements in substrates and in particular to new substrates having magnetic and visual security features, which provide security against imitation. A security substrate comprising a transparent polymer carrier layer bearing indicia formed from a plurality of opaque and non-opaque regions and a transparent magnetic layer supported by the carrier layer containing a distribution of particles of a hard magnetic material of a size and distributed in a concentration at which the magnetic layer remains transparent. | 12-18-2008 |
| 20090269519 | Security Element for Banknotes or Documents With Intrinsic Value - A security element, comprising at least two contiguous areas having an identical or different coloring which can vary depending on the inclination of the incidence and, therefore, reflection of direct light or depending on the type of incident light. The security element also has a single graphic marking which crosses with continuity the two areas having variable coloring so that the graphic marking straddles the two areas so that it is perfectly aligned, without having discontinuities of any kind. Moreover, the effect of this graphic marking is perfectly visible both when the security element is viewed from the recto and when it is viewed from the verso. | 10-29-2009 |
| 20100068424 | DECORATION BOARD AND MANUFACTURE METHOD THEREOF - A decoration board and a manufacture method therefore are provided to generate different visible patterns on the decoration board from different viewing angles. The decoration board includes an outer surface and multiple stria structures disposed on the outer surface. Each stria structure includes multiple hairlines, wherein the stria structures are partially overlapped with one another to form multiple primary decoration regions and multiple secondary decoration regions. According to various overlapping frequency and overlapping shapes of the stria structures, the primary decoration regions and the secondary decoration regions generate different visible patterns under different viewing angles. | 03-18-2010 |
| 20100080938 | Display and information-printed matter - A display includes a substrate with a light-transmitting property, a relief structure-forming layer disposed on at least one surface of the substrate and including a relief-structured region on a surface thereof opposite to its surface in contact with the substrate, a light-reflecting layer disposed on the surface of the relief structure-forming layer including the relief-structured region, and a printed layer formed on a surface of the substrate opposite to the surface on which the relief structure-forming layer is disposed, or between the relief structure-forming layer and the light-reflecting layer, or on a side of the light-reflecting layer opposite to its surface in contact with the relief structure-forming layer. The relief-structured region is constituted by recessed or protruding portions arranged two-dimensionally, has low reflectivity and low diffusibility under a normal illumination condition, and exhibits a diffracted light-emitting property under a specific condition. | 04-01-2010 |
| 20100151159 | Iridescent solid nanocrystalline cellulose films incorporating patterns and method for their production - A new method to produce solid nanocrystalline cellulose (NCC) films containing patterns by differential heating of aqueous suspensions of NCC has been discovered. When acid-form NCC suspensions are dried by heating to temperatures above 50° C., darkening of the NCC can occur, while neutral forms of NCC can produce iridescent chiral nematic films by heating to temperatures up to 105° C. Placing materials of different thermal conductivity beneath the container containing an evaporating NCC suspension results in watermark-like patterns of different iridescent colour imprinted within the film structure. Other colloidal rod-like particles can be employed in place of nanocrystalline cellulose (NCC), for example chitin or chitosan. | 06-17-2010 |
| 20140141181 | PROCESS FOR FORMING RAINBOW AND HOLOGRAM IMAGES ON PAPERS - A process is provided for embossing a fibrous sheet with rainbow or hologram images, without the use of elevated temperatures, or the use of pre-wetting or softening agents. | 05-22-2014 |
| 20150298497 | PERSONALIZED LITHOPHANES AND PROCESSES FOR MAKING THE SAME - A lithophane having a 3-dimensional representation of a 2-dimensional image and methods of creating the same are disclosed. The lithophane can include varying thicknesses that correspond to varying levels of shading or darkness in the 2-dimensional image. Portions of the lithophane have a decreased thickness relative to other lithophane portions and correspond to areas of the 2-dimensional image having an increased level of shading or darkness relative to other areas of the 2-dimensional image. The lithophane may be manufactured by way of an automated additive manufacturing process, such as 3-D printing. | 10-22-2015 |
| 20150343829 | SECURITY DEVICE - A security device including an array of lines printed or otherwise provided on a substrate, the lines including materials which have the same appearance under visible light illumination but which appear different from each other in the visible under a combination of visible and non-visible, ultraviolet illumination. At least some of the lines in the array appear different from other lines under the combination of visible and non-visible, ultraviolet illumination. A second, surface relief array of lines imposed on the first array, the orientation, line widths and spacings of the first and second arrays being such that the device exhibits a variable appearance as it is tilted while exposed to the combination of visible and non-visible illumination. | 12-03-2015 |
| 20160016711 | METHOD AND DEVICE FOR STRUCTURING THE SURFACE OF A HARD MATERIAL COATED SOLID BODY BY MEANS OF A LASER - A packing foil having optical diffraction effective areas and/or authentication features includes at least a first structure produced by passing a homogeneous intensity distribution spot of a laser beam having laser pulse durations in a nano-second range through a mask and a diaphragm before imaging the laser beam on at least one area of an exposed surface of the packaging foil using imaging optics positioned downstream of the mask and the diaphragm, and at least a second structure superposed on the first structure, the second structure produced by a second laser having pulse durations in the pico- or femtosecond range. | 01-21-2016 |
