Optical fiber

US9551828B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9551828-B2
Application numberUS-201514939043-A
CountryUS
Kind codeB2
Filing dateNov 12, 2015
Priority dateNov 13, 2014
Publication dateJan 24, 2017
Grant dateJan 24, 2017

How to read this patent

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  1. Title

    What the patent document calls the invention.

  2. Abstract

    A short plain-language summary of the technical disclosure.

  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

    The legal scope of protection — read this for what is actually claimed.

  6. CPC / IPC classifications

    Technology tags used to group this patent with similar filings.

  7. Citations and related patents

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Abstract

Official abstract text for this publication.

The present invention relates to an optical fiber containing a glass fiber and a resinous coating layer that covers a periphery of the glass fiber, in which the resinous coating layer contains an ethanol of 10 mg or less or a methanol of 2 mg or less per gram of the resinous coating layer.

First claim

Opening claim text (preview).

What is claimed is: 1. An optical fiber comprising a glass fiber and a resinous coating layer that covers a periphery of the glass fiber, wherein the resinous coating layer contains an ethanol of 10 mg or less or a methanol of 2 mg or less per gram of the resinous coating layer. 2. The optical fiber according to claim 1 , wherein the resinous coating layer contains a silicon of less than 0.1 mg in an uncured resin being contained in a gram of the resinous coating layer. 3. The optical fiber according to claim 1 , wherein the resinous coating layer comprises a primary resinous coating layer that covers the periphery of the optical fiber and a secondary resinous coating layer that covers a periphery of the primary resinous coating layer. 4. The optical fiber according to claim 1 , further comprises a colored layer. 5. The optical fiber according to claim 2 , wherein the resinous coating layer comprises a primary resinous coating layer that covers the periphery of the optical fiber and a secondary resinous coating layer that covers a periphery of the primary resinous coating layer. 6. The optical fiber according to claim 2 , further comprises a colored layer.

Assignees

Inventors

Classifications

  • Glass optical fibre with a protective coating, e.g. two layer polymer coating deposited directly on a silica cladding surface during fibre manufacture (G02B6/02052, G02B6/02057, G02B6/024, G02B6/032, G02B6/105, G02B6/14 take precedence; coating on fibre gratings G02B6/02104; multilayer core or cladding G02B6/036; reinforcing splice joints G02B6/2558; optical cables, i.e. comprising protective structures external to the protective coating such as a jacket or plural coated optical fibres G02B6/44; coating of glass to obtain optical fibres C03C25/104) · CPC title

  • and at least one isocyanate or isothiocyanate group linked to a secondary carbon atom of the cycloaliphatic ring, e.g. isophorone diisocyanate · CPC title

  • Polyurethanes; Polyureas · CPC title

  • being toluene diisocyanate including isomer mixtures · CPC title

  • having terminal carbon-to-carbon unsaturated bonds · CPC title

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Frequently asked questions

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What does patent US9551828B2 cover?
The present invention relates to an optical fiber containing a glass fiber and a resinous coating layer that covers a periphery of the glass fiber, in which the resinous coating layer contains an ethanol of 10 mg or less or a methanol of 2 mg or less per gram of the resinous coating layer.
Who is the assignee on this patent?
Sumitomo Electric Industries
What technology area does this patent fall under?
Primary CPC classification G02B6/02395. Mapped technology areas include Physics.
When was this patent published?
Publication date Tue Jan 24 2017 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).