Patent ID: 7191529
Filing Date: 2007-03-20
Classification: B44B,B44C,B44F

Abstract:
1. A marking scribe for marking a material, the marking scribe comprising a material displacement stylus that is movable in three mutually orthogonal x-, y- and z-axes to penetrate, in a direction of the z-axis, a surface of the material at a specific point to a specific depth and then, while the stylus is at the specific point and specific depth, moving in a direction of the x-axis and of the y-axis and parallel to the surface to displace material in a manner leaving a specifically shaped, recessed area formed of grooves and surrounded by ridges of displaced material, the grooves and ridges forming a reflectively multifaceted data cell having a collective reflectance that sufficiently contrasts with unmarked surface reflectance to enable a reader to clearly distinguish the former from the latter even in the presence of extraneous interfering marks and deposits.