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:
Mar. 07, 1989
Filed:
Sep. 29, 1987
Applicant:
Inventors:
Heiroku Suganuma, Otsu, JP;
Shoshiro Taneichi, Kyoto, JP;
Hisaaki Kobayashi, Otsu, JP;
Tadayo Matsunaga, Otsu, JP;
Assignee:
Toray Industries, Inc., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
350 9634 ; 526282 ; 350 9630 ;
Abstract
An optical fiber of a sheath-core structure is disclosed. The fiber has for its core a copolymer which includes an aliphatic N-substituted maleimide as a monomer unit, and preferably methyl methacrylate as an additional monomer unit. These optical fibers have high light transmittance, good mechanical characteristics and an excellent heat-resisting durability.