The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 19, 2012
Filed:
Jun. 06, 2007
Ikuo Mimura, Uozu, JP;
Ikuo Mimura, Uozu, JP;
Nippon Carbide Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
A retroreflection article formed of groups of grooves in three directions having substantially V-shaped cross sections, including a large number of pairs of cube corner retroreflection elements being disposed, the elements in each pair being formed to be rotationally symmetric while sharing one base line forming the retroreflection elements. A group of parallel V-shaped grooves in one direction (grooves x) forming the group of pairs of retroreflection elements has straight-line bottom tracks, the groups of parallel V-shaped grooves in the other two directions (grooves wand w) have continuous bent-line bottom tracks bent at intersection points with the grooves x, the bottom tracks of the groups of parallel V-shaped grooves in the two directions (grooves wand w) do not intersect with each other, and projection geometries of base planes (A-B-E-Dand A-B-E-D) forming the retroreflection elements are quadrilaterals.