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. 03, 2022
Filed:
Mar. 11, 2019
Nippon Electric Glass Co., Ltd., Otsu, JP;
Tomoko Yamada, Otsu, JP;
Fumio Sato, Otsu, JP;
NIPPON ELECTRIC GLASS CO., LTD., Shiga, JP;
Abstract
Provided is a method that can manufacture a glass material having excellent homogeneity by containerless levitation. With a block () of glass raw material held levitated above a forming surface () of a forming die () by jetting gas through a gas jet hole () opening on the forming surface (), the block () of glass raw material is heated and melted by irradiation with laser beam, thus obtaining a molten glass, and the molten glass is then cooled to obtain a glass material. Control gas is jetted to the block () of glass raw material along a direction different from a direction of jetting of the levitation gas for use in levitating the block () of glass raw material or the molten glass.