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:
May. 15, 2007
Filed:
Feb. 21, 2003
Hirotaka Koyo, Osaka, JP;
Keiji Tsunetomo, Osaka, JP;
Hirotaka Koyo, Osaka, JP;
Keiji Tsunetomo, Osaka, JP;
Nippon Sheet Glass Co., Ltd., Osaka, JP;
Abstract
A limited portion of a surface of a glass substrate is removed by application of a laser beam on the limited portion of the glass substrate to thereby produce a glass structure according to the invention. The glass substrate contains at least one element such as titanium, iron, vanadium, bismuth, lead, thallium, tin, cerium, rhodium or cobalt capable of absorbing energy of the laser beam and has a threshold of not larger than 1.0 J/cmper laser beam pulse in terms of machining energy of the laser beam. When such a glass substrateis used, a glass structure having a through-holeor cavity optional in sectional shape can be formed by irradiation with the laser beam