HEXAGONAL CORNER CUBE RETROREFLECTIVE ARTICLE - NIPPON CARBIDE INDUSTRIES CO., INC.

Title:

HEXAGONAL CORNER CUBE RETROREFLECTIVE ARTICLE

Document Type and Number:

WIPO Patent Application WO/2010/131630

Kind Code:

A1

Abstract:

Provided is a hexagonal corner cube retroreflective article having excellent observation-angle characteristics. Said article comprises an aggregation of many hexagonal corner cube retroreflective elements, each of which is characterized in that at least one reflective surface (surface a, surface b, and/or surface c) is partitioned, by a line segment (EF, FD, and/or DE) connecting vertices (E, F, and/or D) that constitute said reflective surface, into a pair comprising an upper secondary reflective surface (surface a1, surface b1, and/or surface c1) and a lower secondary reflective surface (surface a2, surface b2, and/or surface c2). Each hexagonal corner cube retroreflective element is further characterized in that the two secondary reflective surfaces that constitute the aforementioned pair of secondary reflective surfaces are not in the same plane.

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Inventors:

MIMURA, Ikuo (3700-5, Butsuden Uozu-cit, Toyama 61, 〒9730061, JP)
三村育夫 (〒61 富山県魚津市仏田３７００－５ Toyama, 〒9730061, JP)
AMEMIYA, Keiji (224-2, Yotsuya Namerikawa-cit, Toyama 07, 〒9360807, JP)

Application Number:

JP2010/057907

Publication Date:

November 18, 2010

Filing Date:

May 10, 2010

Export Citation:

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Assignee:

NIPPON CARBIDE INDUSTRIES CO., INC. (11-19, Konan 2-chome Minato-k, Tokyo 66, 〒1088466, JP)
日本カーバイド工業株式会社 (〒66 東京都港区港南２丁目１１番１９号 Tokyo, 〒1088466, JP)
MIMURA, Ikuo (3700-5, Butsuden Uozu-cit, Toyama 61, 〒9730061, JP)
三村育夫 (〒61 富山県魚津市仏田３７００－５ Toyama, 〒9730061, JP)

International Classes:

G02B5/124; E01F9/015

Attorney, Agent or Firm:

MORIMURA, Yasuo et al. (Higashikanda MK dai5 Building 6F, 5-6 Higashikanda 1-chome, Chiyoda-k, Tokyo 31, 〒1010031, JP)

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Claims:

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