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. 28, 2006
Filed:
Nov. 26, 2003
Tatsuya Tsukida, Yoshikawa, JP;
Tetsuyuki Utagawa, Kawaguchi, JP;
Satoshi Kawada, Setagaya, JP;
Lintec Corporation, Tokyo, JP;
Abstract
A method for recording and erasure of images using a rewritable thermal label of the non-contact type which enables complete elimination of residual images after the erasure and repeated rewriting. The absorptivity of laser light used for the recording with the surface of the label is 50% or greater, the laser light irradiating the surface of the label for the recording has a wavelength of 700 to 1,500 nm and an amount of energy of irradiation of 5.0 to 15.0 mJ/mm, the product of the amount of energy of irradiation of the laser light and the absorptivity of the laser light during the recording is 3.0 to 14.0 mJ/mm, and the product of the amount of energy of irradiation of the laser light and the absorptivity of the laser light with the surface of the label during the erasure is 1.1 to 3.0 times as great as the corresponding product during the recording.