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:
Sep. 13, 2005
Filed:
Apr. 06, 2004
Ikuo Mimura, Uozu, JP;
Yutaka Hamada, Namerikawa, JP;
Takehito Takahashi, Shimotsuga-gun, JP;
Nippon Carbide Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
A triangular-pyramidal cube-corner retroreflective sheeting wherein a pair of triangular-pyramidal cube-corner retroreflective elements partitioned by three lateral faces (face a, b, and c; faces a, b, and c; . . . ) intersect almost perpendicularly because intersecting V-shaped grooves having substantially-symmetric cross sections are arranged in a closest-packed state so as to protrude to one side on a common-bottom plane (S-S'). Opposite faces (faces cand c) of this pair of triangular-pyramidal retroreflective elements share a base (x), the common bottom plane (S-S′) including bases (z and z) of one-side lateral faces (faces aand a) and bases (y and y) of the other-side lateral faces (face band b), this pair of triangular-pyramidal retroreflective elements have faced lateral faces (face cand c) with shapes, and heights from the bottom plane (S-S′) up to apexes of the elements, that differ from each other.