| AVANTONE OY Patent applications |
| Patent application number | Title | Published |
|---|
| 20090237795 | Anti-Counterfeit Hologram - A microstructure area ( | 09-24-2009 |
| 20090134534 | Device and A method for producing a diffractive microstructure - Micro-protrusions, which constitute a diffractive microstructure, are produced by embossing the surface layer of a substrate by an embossing member having microgrooves in such a way that the cross-sectional area of a produced micro-protrusion is substantially smaller than the cross-sectional area of the microgroove producing said micro-protrusion. Thus, the embossing pressure is small, the risk of adhesion is reduced, it is possible to use a low embossing temperature, and microstructures may be produced at a high speed. Furthermore, the same embossing member may be used for producing a low microstructure, a normal microstructure, and a high microstructure. | 05-28-2009 |
| 20090011190 | Product comprising a protected microstructured area, and a method and a device for producing the same - A bare diffractive microstructured area on a product is protected against wearing by one or more protruding elements. In an embodiment, the product is provided with a depression, whose bottom is further provided with a diffractive microstructured area. Thus, the rim areas of the depression form a protruding element with respect to the microstructured area. If the product is rubbed, for example, against the surface of a table, the protruding element prevents the rubbing surface from having a physical contact with the microstructured area. The microstructured area does not need to be protected with a transparent protective layer, which entails significant cost savings. | 01-08-2009 |
| 20080302255 | Method and a Device in Die-Cutting, and a Die-Cutting Press - A method and a device for producing a diffractive microstructured area on the surface layer of a substrate by embossing. The device includes a die-cutting press that includes a press member and a backing member and at least one die-cutting tool arranged for die-cutting the substrate placed between the press member and the backing member. The press member and/or the backing member is provided with at least embossing pattern corresponding to the microstructured area, against which pattern the substrate is pressed during the embossing, when the substrate is introduced between the press member and the backing member for the embossing. A method for converting a die-cutting press to a die-cutting and embossing device for producing a diffractive microstructured area on the surface layer of a substrate by embossing, wherein the press member and/or the backing member of the die-cutting press is provided with at least one embossing pattern corresponding to the microstructured area for embossing. | 12-11-2008 |
| 20080251956 | Embossing Device with a Deflection Compensated Roller - A diffractive microstructure is produced on the surface layer of a substrate using an embossing device. The embossing device includes an embossing roll and a backing roll for exerting an embossing pressure on the surface layer of the substrate. The embossing pressure and/or variations in temperature cause deflection of the embossing roll. To compensate for the deflection, the embossing device can set the embossing pressure exerted by the central area of the embossing roll on the surface layer of the substrate to be at least equal to or higher than the embossing pressure exerted by the end areas of the embossing roll on the surface layer of the substrate. | 10-16-2008 |
