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. 11, 2013
Filed:
Aug. 22, 2007
Ikuo Mimura, Uozu, JP;
Chihiro Hayashi, Namerikawa, JP;
Keiji Amemiya, Namerikawa, JP;
Nippon Carbide Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
The present invention relates to a triangular pyramidal cube corner retroreflective article and a producing method thereof. In the triangular pyramidal cube corner retroreflective article, a triangular pyramidal cube corner retroreflective element pair group is disposed in a closest-packed fashion on a common plane defined by three base lines, and the each of retroreflective elements in a pair having one base line (A-B) shared by the retroreflective elements in the pair. The triangular pyramidal cube corner retroreflective article includes a first element pair group, in which two interior angles (α=∠BAC and β=∠ABC) formed by the shared base line of the element pair and two other base lines are different from each other and the element pair is line-symmetrically disposed in relation to the shared base line (A-B); and a second element pair group, in which the element pair is congruent to a line-symmetrical shape to the first element pair in relation to a line segment connecting vertexes of the base planes.