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:
Dec. 22, 1981
Filed:
Nov. 07, 1979
Applicant:
Inventors:
Masao Kawachi, Mito, JP;
Tadashi Miyashita, Mito, JP;
Shintaro Sentsui, Ciba, JP;
Yasuro Furui, Ichihara, JP;
Toshiaki Kuroha, Yokohama, JP;
Assignees:
Nippon Telegraph & Telephone Public Corporation, Tokyo, JP;
The Furukawa Electric Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
350 9633 ; 350 9634 ; 65-312 ;
Abstract
The invention relates to a single-mode optical fiber used in a long wavelength band range for optical telecommunication. The core and the cladding of this optical fiber contain P.sub.2 O.sub.5 as a dopant selected to lower the deposition temperature and to hasten the deposition speed so as to result in low absorption loss.
Kawachi, Masao. (1981). Single-mode optical fiber (U.S. Patent No. 4306767). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4306767
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile