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. 24, 1985
Filed:
Aug. 11, 1983
Kazuo Ishiwari, Ibaraki, JP;
Akira Ohmori, Ibaraki, JP;
Nobuyuki Tomihashi, Takatsuki, JP;
Sumiko Yuhara, Settsu, JP;
Toshikuni Kaino, Mito, JP;
Kaname Jinguji, Mito, JP;
Shigeo Nara, Mito, JP;
Nippon Telegraph and Telephone Public Corporation, Tokyo, JP;
Kaikiu Kogyo Co. Ltd., Osaka, JP;
Abstract
Plastic optical fibers comprising as a core component a polymer predominantly containing methyl methacrylate and as a cladding component a copolymer lower in the refractive index than the core component, the plastics optical fibers being characterized by performing conjugate spinning with use of the cladding component which is vinylidene fluoride-tetrafluorethylene copolymer having incorporated therein 5 to 50% by weight of a polymer predominantly containing methyl methacrylate.