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. 14, 2010
Filed:
May. 26, 2006
Ichiro Uchiyama, Hyogo, JP;
Tomoyuki Taguchi, Hyogo, JP;
Ikuo Kuriyama, Hyogo, JP;
Hisashi Matsuno, Tokyo, JP;
Keiichiro Hayakawa, Tokyo, JP;
Ichiro Uchiyama, Hyogo, JP;
Tomoyuki Taguchi, Hyogo, JP;
Ikuo Kuriyama, Hyogo, JP;
Hisashi Matsuno, Tokyo, JP;
Keiichiro Hayakawa, Tokyo, JP;
E.I. du Pont de Nemours and Company, Wilmington, DE (US);
Abstract
An object of the present invention is to provide a lead-free bismuth glass wherein decrease of the degree of accuracy of the patterning is prevented. Specifically, the present invention provides a lead-free bismuth glass characterized in that said lead-free bismuth glass is used for an optical patterning glass material which is patterned by light irradiation and the optical-absorption coefficient to light with a wavelength of 365 nm is 300 to 3000 cm.