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:
Apr. 08, 2025
Filed:
Sep. 29, 2021
Shin-etsu Chemical Co., Ltd., Tokyo, JP;
Ryo Mitta, Ibaraki, JP;
Shin-Etsu Chemical Co., Ltd., Tokyo, JP;
Abstract
Provided is a method for manufacturing an optical fiber preform includes supporting at least one end of an optical fiber preform with a gripping portion; and heating the optical fiber preform while rotating it to process the optical fiber preform, wherein the optical fiber preform is gripped by the gripping portion via a buffer material comprising the gripping portion; wherein the buffer material includes a surface side member in contact with the optical fiber preform, and a surface side member in contact with the gripping portion; wherein a composition of the surface side member in contact with the optical fiber preform and the surface side member in contact with the gripping portion are different; and the surface side member in contact with the optical fiber preform does not contain any of Ca, Mg, Al, K, Na, Mg, or Ba.