Japan, Feb. 24 -- FUJIKURA LTD has got intellectual property rights for 'MANUFACTURING APPARATUS OF GLASS PREFORM, AND MANUFACTURING METHOD OF GLASS PREFORM.' Other related details are as follows:
Application Number: JP,2021-095577
Category (FI): C03B20/00@E,C03B37/014@Z
Stage: PROBLEM TO BE SOLVED: To provide a manufacturing apparatus of a glass preform capable of suppressing decentering of the glass preform or non-circularity of a cross-sectional shape of the glass preform; and to provide a manufacturing method of the glass preform.SOLUTION: A manufacturing apparatus of a glass preform includes a furnace core tube capable of storing an untreated base material, a heater provided outside the furnace core tube, a furnace body for storing at least a part of the furnace core tube and the heater, multiple supply ports for supplying gas into the furnace body, and an exhaust port for discharging gas from inside the furnace body.SELECTED DRAWING: Figure 1 (Grant)
Filing Date: June 8, 2021
Publication Date: Dec. 20, 2022
The original document can be viewed at: https://www.j-platpat.inpit.go.jp/p0100
Disclaimer: Curated by HT Syndication.
