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:
Feb. 07, 2012
Filed:
Nov. 06, 2008
Mitsuru Watanabe, Chiyoda-ku, JP;
Yutaka Kuroiwa, Chiyoda-ku, JP;
Motoichi Iga, Chiyoda-ku, JP;
Setsuro Ito, Chiyoda-ku, JP;
Yasuji Fukasawa, Chiyoda-ku, JP;
Mitsuru Watanabe, Chiyoda-ku, JP;
Yutaka Kuroiwa, Chiyoda-ku, JP;
Motoichi Iga, Chiyoda-ku, JP;
Setsuro Ito, Chiyoda-ku, JP;
Yasuji Fukasawa, Chiyoda-ku, JP;
Asahi Glass Company, Limited, Tokyo, JP;
Abstract
It is an object of the present invention to provide a method and apparatus for efficiently remove bubbles present on a surface of molten glass, which can solve a problem that bubbles remaining on a surface of molten glass are get inside at a time of forming the glass to cause inside bubbles, to thereby provide a glass substrate of good quality, and which can improve productivity of glass substrates; and to provide a process for producing glass employing the above method for removing bubbles. The present invention provides a method for removing bubbles from molten glass, which is a method for removing floating bubbles on a surface of molten glass, wherein a floating bubble on the surface of molten glass is irradiated with at least one laser beam.