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.:

US 7539383 B1

PDF
Full Text
Expired
Date of Patent:
May. 26, 2009

Filed:

Jan. 29, 2008
Applicants:

Akira Sendai, Tokyo, JP;

Kazuhisa Kashihara, Tokyo, JP;

Yukio Ishii, Tokyo, JP;

Tomoaki Gonohe, Tokyo, JP;

Inventors:

Akira Sendai, Tokyo, JP;

Kazuhisa Kashihara, Tokyo, JP;

Yukio Ishii, Tokyo, JP;

Tomoaki Gonohe, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 6/02 (2006.01); G02B 6/44 (2006.01);
U.S. Cl.
CPC ...
Abstract

A buffered optical fiber having an excellent pistoning characteristic compared with a conventional one and a manufacturing method thereof are provided. The buffered optical fiber of the present invention is composed of an optical fiber with a primary coating layer and a secondary coating layer provided on a circumference of a glass optical fiber and a tertiary coating layer having thermoplastic polyester elastomer as the main ingredient provided on a circumference of the optical fiber and is characterized in that an outer diameter of the primary coating layer is 180 to 200 μm, an outer diameter of the secondary coating layer is 350 to 450 μm and the product of a thickness of the secondary coating layer of the optical fiber and a force of pulling out the glass optical fiber from the optical fiber is 720 N/mm·μm or more.


Find Patent Forward Citations

Sendai, Akira. (2009). Buffered optical fiber and manufacturing method thereof (U.S. Patent No. 7539383). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7539383

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Loading…