Invention Grant
- Patent Title: Glass preform manufacturing method
- Patent Title (中): 玻璃预制件制造方法
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Application No.: US13233654Application Date: 2011-09-15
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Publication No.: US08844323B2Publication Date: 2014-09-30
- Inventor: Takayuki Kitamura
- Applicant: Takayuki Kitamura
- Applicant Address: JP Tokyo
- Assignee: Fujikura Ltd.
- Current Assignee: Fujikura Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Sughrue Mion, PLLC
- Priority: JP2010-206612 20100915
- Main IPC: C03B37/012
- IPC: C03B37/012 ; C03B37/018
Abstract:
A glass preform manufacturing method, includes: preparing a glass element having a rough surface; turning a raw material of an alkali metal compound or a raw material of an alkaline earth metal compound into particles; depositing particles of the alkali metal compound or the alkaline earth metal compound on the rough surface of the glass element; oxidizing the particles of the alkali metal compound or the alkaline earth metal compound while diffusing alkali metal oxide or alkaline earth metal oxide in the glass element; and manufacturing a glass preform into which the alkali metal oxide or the alkaline earth metal oxide is doped.
Public/Granted literature
- US20120060561A1 GLASS PREFORM MANUFACTURING METHOD Public/Granted day:2012-03-15
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