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:
Oct. 06, 1992
Filed:
Feb. 26, 1991
Applicant:
Inventors:
Tadayo Matsunaga, Shiga, JP;
Heiroku Suganuma, Shiga, JP;
Tadanori Fukuda, Shiga, JP;
Genzaburo Nakamura, Shiga, JP;
Assignee:
Toray Industries, Inc., , JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08F / ; C08F / ;
U.S. Cl.
CPC ...
526245 ; 526262 ; 428392 ;
Abstract
A cladding material for plastic optical fibers is disclosed. The cladding material comprises mainly a copolymer comprising a fluoroalkyl methacrylate and an N-aliphatic maleimide as monomer units. The cladding material has low refractive index and high thermal stability, so that an optical fiber with a large acceptance angle can be obtained.