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:
May. 12, 2015
Filed:
Mar. 29, 2007
Makoto Yoshida, Ibaraki, JP;
Makoto Yoshida, Ibaraki, JP;
Shin-Etsu Chemical Co., Ltd., Tokyo, JP;
Abstract
In a method of manufacturing an optical fiber base material including depositing soot generated by flame hydrolysis, the fluctuation band of the surface temperature of a burner fixing section including a burner holder and its fixture for burners for compounding the optical fiber base material is kept equal to or less than 80 degree C. The temperature can be controlled by a heat shield plate arranged between a burner flame and a burner fixing section and a temperature control mechanism that heats or cools the burner fixing section. Thereby the relative position between the burner and the soot deposition is stabilized, so that the manufacturing method being capable of manufacturing an optical fiber base material having a stable refractive index and the apparatus therefor can be provided.