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. 28, 2011
Filed:
Jun. 08, 2005
Kazuhiro Tsuda, Warabi, JP;
Osamu Kanazawa, Warabi, JP;
Kiichiro Kato, Warabi, JP;
Lintec Corporation, Tokyo, JP;
Abstract
To produce a pressure-sensitive adhesive sheet according to which air entrapment and blistering can be prevented or eliminated through through-holes, and yet the through-holes are not readily visible at a substrate surface, a pressure-sensitive adhesive surface of a pressure-sensitive adhesive layerin a laminate comprising a substrateand the pressure-sensitive adhesive layeris irradiated with a COlaser having a pulse width of from 1 to 140 μsec, a pulse energy at each processing point of from 0.01 to 3.0 mJ, and a beam spot diameter at each processing point of from 30 to 160 μm, so as to form through-holeshaving a diameter at the surface of the substrateof from 0.1 to 42 μm at a hole density of from 30 to 50,000 per 100 cm.