专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明公开

US20230204853A1 MULTICORE FIBER 审中-公开
公开(公告)号：US20230204853A1
公开(公告)日：2023-06-29
申请号：US18178620
申请日：2023-03-06
申请人： FURUKAWA ELECTRIC CO., LTD.
发明人： Masanori TAKAHASHI , Koichi MAEDA , Ryuichi SUGIZAKI , Yoshihiro ARASHITANI
IPC分类号： G02B6/02
CPC分类号： G02B6/02042
摘要： A multicore fiber includes: a plurality of first glass regions each including: a core portion; and a first cladding portion having a lower refractive index than a maximum refractive index of the core portion; and a cladding region formed on outer peripheries of the plurality of first glass regions, wherein compressive stress is applied to the plurality of first glass regions.

2. 发明申请

US20180282209A1 BARE OPTICAL FIBER MANUFACTURING METHOD AND ULTRAVIOLET IRRADIATION DEVICE 审中-公开
公开(公告)号：US20180282209A1
公开(公告)日：2018-10-04
申请号：US16001985
申请日：2018-06-07
申请人： FURUKAWA ELECTRIC CO., LTD.
发明人： Zyunpei WATANABE , Hiroki TANAKA , Kenichi SUYAMA , Yoshihiro ARASHITANI
IPC分类号： C03C25/26 , C03C25/12
摘要： A bare optical fiber manufacturing method includes applying an ultraviolet curable resin applied around an optical fiber; and irradiating the ultraviolet curable resin with ultraviolet light emitted from semiconductor ultraviolet light emitting elements, by use of an ultraviolet irradiation device having plural ultraviolet irradiation units each having plural positions where the ultraviolet light is emitted toward the ultraviolet curable resin, the plural positions being arranged on the same circle, the plural ultraviolet irradiation units being arranged in a traveling direction of the optical fiber such that the optical fiber passes centers of the circles, at least two of the plural ultraviolet irradiation units being differently arranged with respect to circumferential direction angles thereof around an axis that is the traveling direction of the optical fiber.

3. 发明申请

US20170107145A1 METHOD OF PRODUCING AN OPTICAL FIBER AND APPARATUS OF PRODUCING THE OPTICAL FIBER 审中-公开
公开(公告)号：US20170107145A1
公开(公告)日：2017-04-20
申请号：US15390131
申请日：2016-12-23
申请人： FURUKAWA ELECTRIC CO., LTD.
发明人： Kenichi SUYAMA , Yoshihiro ARASHITANI , Hiroki TANAKA , Minoru KASAHARA , Kazuyoshi AKIZUKI
IPC分类号： C03C25/62 , C03C25/28 , C03C25/12
摘要： A method of producing an optical fiber, containing: (a) a resin application step of applying an ultraviolet curable resin, onto an outer circumference of an optical fiber; (b) a heating step of heating the ultraviolet curable resin; and (c) a light irradiation step of irradiating the ultraviolet curable resin with ultraviolet light emitted from a semiconductor light emitting element, in a state in which the ultraviolet curable resin is heated, to cure the ultraviolet curable resin into a coating resin.

4. 发明申请

US20170131511A1 COLORED OPTICAL FIBER 有权
公开(公告)号：US20170131511A1
公开(公告)日：2017-05-11
申请号：US15405770
申请日：2017-01-13
申请人： FURUKAWA ELECTRIC CO., LTD.
发明人： Hiroki TANAKA , Minoru KASAHARA , Junpei WATANABE , Kenichi SUYAMA , Yoshihiro ARASHITANI
IPC分类号： G02B6/44 , C03C25/24 , G02B6/02 , C03C25/10
CPC分类号： G02B6/02395 , C03C25/1065 , C03C25/24 , C03C25/475 , G02B6/44 , G02B6/4403 , G02B6/4482
摘要： The present invention provides a two-layer structure colored optical fiber which includes a colored secondary coating layer improved in collectability and separability. The two-layer structure colored optical fiber in an embodiment of the present invention includes a glass optical fiber, a primary coating layer coating the glass optical fiber, and a colored secondary coating layer coating the primary coating layer. The secondary coating layer has such characteristics that a surface cure percentage is 99% or more at an infrared absorption peak of a wave number of 1407 cm−1 and a surface kinetic friction force in Knot Test is less than 0.075 N.

5. 发明申请

US20140301704A1 COLORED OPTICAL FIBER, OPTICAL FIBER RIBBON AND OPTICAL FIBER CABLE 有权
标题翻译：彩色光纤，光纤光纤和光纤电缆
公开(公告)号：US20140301704A1
公开(公告)日：2014-10-09
申请号：US14309380
申请日：2014-06-19
申请人： FURUKAWA ELECTRIC CO., LTD.
发明人： Hiroki TANAKA , Minoru SAITO , Minoru KASAHARA , Yasuo NAKAJIMA , Yoshihiro ARASHITANI
IPC分类号： G02B6/44 , G02B6/02
CPC分类号： G02B6/02395 , C03C25/1065 , C03C25/285 , G02B6/4403 , G02B6/4409
摘要： A colored optical fiber including a glass optical fiber; a primary coating layer that covers the glass optical fiber; a secondary coating layer that covers the primary coating layer; and a colored layer that coats the secondary coating layer. The relaxation modulus after 24 hours at 60° C. of of the layers coated is 140 MPa or less.
摘要翻译：包括玻璃光纤的彩色光纤; 覆盖玻璃光纤的主要涂层; 覆盖第一涂层的二次涂层; 以及涂覆第二涂层的着色层。所涂层的60℃下24小时后的松弛模量为140MPa以下。

6. 发明公开

US20240280746A1 OPTICAL FIBER 审中-公开
公开(公告)号：US20240280746A1
公开(公告)日：2024-08-22
申请号：US18650311
申请日：2024-04-30
申请人： FURUKAWA ELECTRIC CO., LTD.
发明人： Shugo TAKEUCHI , Keiichi AISO , Kazunori MUKASA , Yoshihiro ARASHITANI
IPC分类号： G02B6/036
CPC分类号： G02B6/03694 , G02B6/03627
摘要： An optical fiber includes: a core portion; and a cladding portion that has a refractive index lower than a maximum refractive index of the core portion and that surrounds an outer periphery of the core portion. The core portion includes a center core doped with germanium, and a low refractive index layer that surrounds an outer periphery of the center core, and in which −Δmax that is a minimum value of a relative refractive-index difference with respect to an average refractive index of the cladding portion is a negative value. A residual compressive stress in the center core is equal to or larger than 40 MPa and equal to or less than 150 MPa, and Δ1 that is an average maximum relative refractive-index difference of the center core with respect to the average refractive index of the cladding portion is equal to or less than 0.8%.

7. 发明申请

US20190285823A1 METHOD FOR MANUFACTURING INTERMITTENT BONDING TYPE OPTICAL FIBER RIBBON AND INTERMITTENT BONDING TYPE OPTICAL FIBER RIBBON 审中-公开
公开(公告)号：US20190285823A1
公开(公告)日：2019-09-19
申请号：US16428739
申请日：2019-05-31
申请人： Furukawa Electric Co., Ltd.
发明人： Hiroki TANAKA , Kenji YOKOMIZO , Tomohiro ISHIMURA , Yutaka HOSHINO , Masaki IWAMA , Eisuke OTANI , Shunichi MATSUSHITA , Yoshihiro ARASHITANI , Takeshi YAGI
IPC分类号： G02B6/44
摘要： A method for manufacturing an intermittent bonding type optical fiber ribbon which is capable of forming non-connection portions and intermittent connection portions between adjacent coated optical fibers formed into an optical fiber ribbon by performing a laser processing for the ribbon through irradiation with a pulse laser light, thereby making it possible to rapidly form the intermittent connection portions and the non-connection portions while maintaining high linear velocity of the coated optical fiber. The non-connection portions and the intermittent connection portions are formed in the obtained intermittent bonding type optical fiber ribbon through the irradiation with the pulse laser light, so the intermittent bonding type optical fiber ribbon becomes the intermittent bonding type optical fiber ribbon, which is capable of securing operability during collective connection and surely being subjected to an intermediate branching without damaging cable characteristics during high density mounting.

8. 发明申请

US20180339941A1 METHOD OF MANUFACTURING OPTICAL FIBER WIRE 审中-公开
公开(公告)号：US20180339941A1
公开(公告)日：2018-11-29
申请号：US16056994
申请日：2018-08-07
申请人： FURUKAWA ELECTRIC CO., LTD.
发明人： Kenichi SUYAMA , Yoshihiro ARASHITANI , Zyunpei WATANABE
IPC分类号： C03C25/105 , C03C25/106 , C03C25/18
摘要： A method of manufacturing an optical fiber wire includes applying ultraviolet curable resin onto the outer periphery of a traveling optical fiber, cooling the ultraviolet curable resin applied to the optical fiber using first cooled inert gas, and curing the ultraviolet curable resin by radiating ultraviolet rays on the ultraviolet curable resin that is cooled by the first cooled inert gas through an ultraviolet transparent tube.

9. 发明申请

US20170248756A1 COATED OPTICAL FIBER AND METHOD FOR MANUFACTURING COATED OPTICAL FIBER 有权
公开(公告)号：US20170248756A1
公开(公告)日：2017-08-31
申请号：US15583399
申请日：2017-05-01
申请人： FURUKAWA ELECTRIC CO., LTD.
发明人： Kenichi SUYAMA , Yoshihiro ARASHITANI
IPC分类号： G02B6/02 , C03C25/10
CPC分类号： G02B6/02395 , C03C25/1065 , C03C25/24 , G02B6/00
摘要： A coated optical fiber, including a coating layer with a high elastic modulus even when a glass optical fiber is coated with resin by using an ultraviolet semiconductor light emitting element as a light source for curing resin and using a Wet-on-Wet method, is provided. A manufacturing method of the coated optical fiber includes: applying a first ultraviolet curable resin to a glass optical fiber; applying a second ultraviolet curable resin to the periphery of the first ultraviolet curable resin before curing the first ultraviolet curable resin; and irradiating the first and second ultraviolet curable resins with light in a wavelength range of 350 to 405 nm emitted from an ultraviolet semiconductor light emitting element, wherein the second ultraviolet curable resin contains a photopolymerization initiator that absorbs the light from the ultraviolet semiconductor light emitting element to generate radicals, and the photopolymerization initiator has photobleaching properties.

10. 发明申请

US20150293325A1 COATED OPTICAL FIBER, OPTICAL FIBER RIBBON, AND OPTICAL CABLE 有权
标题翻译：涂层光纤，光纤玻璃纤维和光缆
公开(公告)号：US20150293325A1
公开(公告)日：2015-10-15
申请号：US14296003
申请日：2014-06-04
申请人： Furukawa Electric Co., Ltd.
发明人： Minoru KASAHARA , Minoru SAITO , Yoshihiro ARASHITANI
IPC分类号： G02B6/44 , G02B6/02
CPC分类号： G02B6/4494 , G02B6/02395 , G02B6/4403 , G02B6/4404
摘要： The purpose of the present invention is to provide, by a configuration or method different from conventional art, a coated optical fiber enabling reduced interface delamination between a glass fiber and a primary coating layer when the coated optical fiber is immersed in water, and a reduction of transmission loss increase. A coated optical fiber according to one embodiment of the present invention is provided with a glass fiber, a primary coating layer coated on the glass fiber, a secondary coating layer coated on the primary coating layer, and a colored layer coated on the secondary coating layer. The coated optical fiber is configured so that small water bubbles are generated substantially evenly within the primary coating layer when the coated optical fiber is immersed for 200 days in warm water of 60° C.
摘要翻译：本发明的目的是通过与传统技术不同的结构或方法来提供一种涂覆光纤，当涂覆的光纤浸入水中时，能够减少玻璃纤维和主要涂层之间的界面分层，并且还原的传输损耗增加。根据本发明的一个实施方案的涂覆光纤具有玻璃纤维，涂覆在玻璃纤维上的主涂层，涂覆在第一涂层上的二次涂层和涂覆在第二涂层上的着色层。涂覆光纤被配置为使得当涂覆的光纤在60℃的温水中浸渍200天时，在主涂层内基本上均匀地产生小的水泡。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式