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Patent Searching and Data


Title:
被覆光ファイバ
Document Type and Number:
Japanese Patent JP6451319
Kind Code:
B2
Abstract:
Provided is a coated optical fiber excellent in both characteristics of the microbending loss resistance and the low-temperature characteristic. The coated optical fiber 1 comprises an optical fiber 10 that has a cladding layer composed of glass formed on an outer periphery of a glass core, a primary coating layer 20 that coats an outer periphery of the optical fiber 10, and a secondary coating layer 30 that coats an outer periphery of the primary coating layer 20, wherein the primary coating layer 20 has a Young's modulus of 1.2 MPa or less, the secondary coating layer 30 has a Young's modulus of 700 MPa or more, and the primary coating layer 20 contains tin in a content of 70 ppm or less.

Inventors:
Noriaki Iwaguchi
Iida Masuda
Kumiko Tachibana
Takashi Takada
Takashi Fujii
Application Number:
JP2014542610A
Publication Date:
January 16, 2019
Filing Date:
April 10, 2014
Export Citation:
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Assignee:
Sumitomo Electric Industries, Ltd.
International Classes:
C03C25/24; C03C25/1065; C03C25/285; C03C25/326; G02B6/02; G02B6/44
Domestic Patent References:
JP2002338641A
JP10231340A
JP2012168310A
JP10170787A
JP2011068559A
Attorney, Agent or Firm:
Shinei Patent Office