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:
Feb. 01, 2005
Filed:
Jun. 03, 2002
Yoshiaki Shimizu, Annaka, JP;
Takaaki Nagano, Annaka, JP;
Tadakatsu Shimada, Annaka, JP;
Hideo Hirasawa, Annaka, JP;
Masataka Watanabe, Annaka, JP;
Kazuhisa Hatayama, Annaka, JP;
Mitsukuni Sakashita, Annaka, JP;
Minoru Taya, Annaka, JP;
Waichi Yamamura, Annaka, JP;
Shinji Suzuki, Annaka, JP;
Jiro Moriya, Niigata, JP;
Yoshiaki Shimizu, Annaka, JP;
Takaaki Nagano, Annaka, JP;
Tadakatsu Shimada, Annaka, JP;
Hideo Hirasawa, Annaka, JP;
Masataka Watanabe, Annaka, JP;
Kazuhisa Hatayama, Annaka, JP;
Mitsukuni Sakashita, Annaka, JP;
Minoru Taya, Annaka, JP;
Waichi Yamamura, Annaka, JP;
Shinji Suzuki, Annaka, JP;
Jiro Moriya, Niigata, JP;
Shin-Etsu Chemical Co., Ltd., Tokyo, JP;
Abstract
A method for manufacturing an optical fiber comprises setting a heating condition for heating a glass rod, which is a parent material of the optical fiber, and an elongating speed of the glass rod based on a prescribed numerical value which changes with a progress of elongation of the glass rod; heating and elongating the glass rod to generate a preform based on the heating condition and the elongating speed which are set by the setting; and drawing the preform to a filament-like form by further heating the preform to generate the optical fiber.