Method for manufacturing glass material and device for manufacturing glass material

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 10730782
APP PUB NO 20170158549A1
SERIAL NO

15316590

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Provided is a method that can manufacture a glass material having excellent homogeneity by containerless levitation. A block (12) of glass raw material is heated and melted by irradiation with a plurality of laser beams with the block (12) of glass raw material held levitated, thus obtaining a molten glass, and the molten glass is then cooled to obtain a glass material. The plurality of laser beams include a first laser beam (13A) and a second laser beam (13B). A size (θ) of an angle formed between the first laser beam (13A) and the second laser beam (13B) is 0° or more but less than 180°. A center (C1) of a spot (S1) of the first laser beam (13A) on the surface of the block (12) of glass raw material and a center (C2) of a spot (S2) of the second laser beam (13B) on the surface of the block 12 of glass raw material are different from each other.

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Patent Owner(s)

Patent OwnerAddress
NIPPON ELECTRIC GLASS CO LTD7-1 SEIRAN 2-CHOME OTSU-SHI SHIGA 520-8639

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Sato, Fumio Otsu, JP 82 383
Yamada, Tomoko Otsu, JP 35 334

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