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:
Sep. 19, 1978
Filed:
May. 16, 1977
Applicant:
Inventors:
Yukinori Ishida, Mito, JP;
Moriaki Kojima, Yachiyo, JP;
Toshiaki Kobayashi, Chiba, JP;
Yasuyuki Sugawara, Sakura, JP;
Assignees:
Nippon Telegraph and Telephone Public Corporation, BOTH OF, JP;
The Fujikura Cable Works, Ltd., BOTH OF, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
350 9633 ;
Abstract
An optical fiber for communication comprises an optical fiber covered with a coating of a high-molecular elastomer having a flexural modulus of not less than 200 kg/cm.sup.2 at room temperature, the difference between the flexural moduli of said elastomer at room temperature and about -50.degree. C being not more than 1000 kg/cm.sup.2.