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:
Sep. 03, 2002
Filed:
Mar. 08, 2000
Takeshi Kamio, Annaka, JP;
Hiroyuki Koide, Annaka, JP;
Hiroshi Tsumura, Annaka, JP;
Tadakatsu Shimada, Annaka, JP;
Hideo Hirasawa, Annaka, JP;
Shin-Etsu Chemical Co. Ltd., Tokyo, JP;
Abstract
Apparatus ( ) for sintering a glass base material ( ) which is a base material for an optical fiber. The sintering apparatus ( ) includes: a control unit which varies a condition for sintering the glass base material; and a furnace ( ) which sinters the glass base material by heating the glass base material in an atmosphere of dehydration gas and inert gas. The control unit includes a drive source ( ) which supplies the glass base material to the furnace at various speeds. The control unit includes a temperature control unit which controls the temperature of a heating source provided in the furnace.