Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
グラファイト加熱炉および光ファイバの製造方法
Document Type and Number:
Japanese Patent JP5202810
Kind Code:
B2
Abstract:
A gas supplying unit supplies a nitrogen gas into a furnace body of a graphite heating furnace in which at least a part of the furnace body is formed with a graphite. An exhausting unit exhausts a gas inside the furnace body to outside the furnace body. A dew-point temperature of the nitrogen gas supplied into the furnace body is equal to or lower than −80° C. A pressure inside the furnace body is equal to or higher than 140 Pa with respect to an atmospheric pressure outside the furnace body.

More Like This:
JP4986964Crystal growth furnace with convection cooling structure
JP2017089934CONTINUOUS BURNING DEVICE FOR COMPACT AND CONTINUOUS BURNING METHOD FOR COMPACT
Inventors:
Tadashi Takahashi
Application Number:
JP2006028326A
Publication Date:
June 05, 2013
Filing Date:
February 06, 2006
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
THE FURUKAW ELECTRIC CO.,LTD.
International Classes:
F27D11/02; C03B37/029; F27B17/00; F27D19/00; F27D21/00
Domestic Patent References:
JP62149798U
JP2005225947A
JP2000143385A
JP63060124A
JP2002173333A
JP6010006A
JP2003212582A
Attorney, Agent or Firm:
Hiroaki Sakai



 
Previous Patent: 光ファイバのモード結合長測定方法、偏波モード分散測定方法、偏波モー...

Next Patent: EXHAUST GAS RECIRCULATING DEVICE FOR INTERNAL COMBUSTION ENGINE