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. 09, 2003
Filed:
Oct. 30, 1996
Atsuya Ozawa, Tokyo-to, JP;
Kazuyoshi Hayashi, Tokyo-to, JP;
Koji Shimizu, Tokyo-to, JP;
Masahiro Shimoyamada, Tokyo-to, JP;
Abstract
A laser-marking laminated structure has at least a base layer ( ), a masking layer ( ) capable of being removed by irradiation with a laser beam, and an OP layer ( ) formed in that order on a support element ( ). The base layer and the masking layer are colored layers having colors distinctly different from each other in lightness. The laser-marking laminated structure is irradiated with a laser beam in a desired pattern including characters to remove portions of the masking layer ( ) and the OP layer ( ) corresponding to the pattern so that the pattern is displayed clearly on the laser-marking laminated structure because of the contrast between the color of the base layer ( ) and that of the masking layer ( ).