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:
Mar. 20, 2012
Filed:
Apr. 12, 2007
Yoshiyuki Yuasa, Yokohama, JP;
Ken Takenouchi, Yokohama, JP;
Yoshiyuki Yuasa, Yokohama, JP;
Ken Takenouchi, Yokohama, JP;
Toyo Seikan Kaisha, Ltd., Tokyo, JP;
Abstract
Decoration of a material is enabled with a high degree of recycling properties while satisfying the requirements for putting a structural color into practical use on the industrial scale. Furthermore, whether an object is genuine or not can be verified easily, and reusing by peeling as in the case of a hologram seal is prevented. A cavityhaving a periodic structurecausing optical diffraction is formed in the inside of a substrate, and a periodic structurecausing optical diffraction is formed on part or the whole of the substrate. These cavity interface periodic structureand the substrate surface periodic structurehave a regular arrangement developing a structural color. In addition, by bringing a functional material to be in contact with the substrate surface periodic structure, development of a structural color by the substrate surface periodic structureis suppressed, thereby enabling a structural color developed by the cavity interface periodic structureto be read.