公开(公告)号：EP2955533A1

公开(公告)日：2015-12-16

申请号：EP14762948.9

申请日：2014-02-12

申请人： Furukawa Electric Co., Ltd. ,  Furukawa Automotive Systems Inc.

发明人： IWANE, Noriyasu ,  YOKOYAMA, Koichi ,  TAKASHIMA, Naoya ,  MITSUYAMA, Taiji ,  KOVATS, Antal ,  MIHALFFY, Tamas ,  ROMVARI, Lorand

IPC分类号： G01R31/36 ,  H01M10/44 ,  H01M10/48 ,  H02J7/00

CPC分类号： G01R31/3648 ,  G01R31/3624 ,  G01R31/3651 ,  G01R31/3662 ,  G01R31/3679 ,  H01M10/48 ,  H02J7/0021

摘要： [Object] To detect states of a plurality of secondary batteries whose kinds are different with high accuracy.
[Organization] A measurement unit (voltage sensor 11, current sensor 12) measuring a current value of a current flowing at a secondary battery 14 and a voltage value of a voltage generated at the secondary battery by the current in a predetermined frequency; an optimization unit (CPU 10a) optimizing element constants of an equivalent circuit model of the secondary battery based on the measured voltage value and the current value; an identification unit (CPU 10a) identifying a kind of the secondary battery with reference to the optimized element constants of the equivalent circuit model; a storage unit (ROM 10b) storing detection formulas which detect the state of the secondary battery by each kind of the secondary battery; an acquisition unit (CPU 10a) acquiring the detection formula corresponding to the identified kind from the storage unit; and a detection unit (CPU 10a) detecting the state of the secondary battery by applying the element constants to the acquired detection formula, are included.

公开(公告)号：EP4283352A1

公开(公告)日：2023-11-29

申请号：EP22742618.6

申请日：2022-01-19

申请人： Furukawa Electric Co., Ltd.

发明人： MUKASA, Kazunori ,  KASAHARA, Minoru ,  AISO, Keiichi ,  TSUCHIDA, Yukihiro ,  YOMOGITA, Naoya ,  SUGANE, Takumi ,  SUGANUMA, Ichihiko ,  GONOHE, Tomoaki ,  IWAYA, Mitsuhiro ,  VARALLYAY, Zoltan ,  MIHALFFY, Tamas

IPC分类号： G02B6/036 ,  G02B6/44

摘要： An optical fiber includes a core portion, a side core layer, a cladding portion, a primary layer, and a secondary layer. Regarding a relative refractive-index difference Δ1 of the core portion, a relative refractive-index difference Δ2 of the side core layer, and a relative refractive-index difference ΔClad of the cladding portion; the relationship Δ1>ΔClad>Δ2 holds true as well as the relationship 0>Δ2 holds true. That is, when the relative refractive-index difference Δ1 is equal to or greater than 0.23% and equal to or smaller than 0.30%, when the relative refractive-index difference Δ2 is equal to or greater than -0.23% and equal to or smaller than -0.08%, when the difference (Δ1-Δ2) is equal to or greater than 0.36% and equal to or smaller than 0.53%, when a core diameter 2a represents the core diameter of the core portion, and when an outer diameter 2b represents the outer diameter of the side core layer; the ratio b/a is equal to or greater than 2 and equal to or smaller than 5; the core diameter 2a is equal to or greater than 11.5 µm and equal to or smaller than 14.5 µm; the effective core area at the wavelength of 1550 nm is equal to or greater than 100 µm 2 and equal to or smaller than 160 µm 2 ; the primary layer thickness as well as the secondary layer thickness is equal to 5 µm; the primary elastic modulus is smaller than the secondary elastic modulus; and the microbending loss at the wavelength of 1550 is equal to or smaller than 1.0 dB/km.

公开(公告)号：EP3978968A1

公开(公告)日：2022-04-06

申请号：EP20815268.6

申请日：2020-05-22

申请人： Furukawa Electric Co., Ltd.

发明人： MUKASA, Kazunori ,  MIHALFFY, Tamas ,  VARALLYAY, Zoltan

IPC分类号： G02B6/036 ,  G02B6/44

摘要： An object is to provide an optical fiber with a small diameter and a preferable bending property. The optical fiber includes a core made of silica-based glass; a cladding that covers an outer circumference of the core and that is made of silica-based glass having a refractive index smaller than a maximum refractive index of the core; and a coating that covers an outer circumference of the cladding, wherein the cladding has an outer diameter of 120 µm or smaller, a mode field diameter at a wavelength of 1310 nm is 8.6 µm to 9.2 µm, an effective cut-off wavelength is 1260 µm or smaller, and a bending loss at a wavelength of 1550 nm in a case of bending at a diameter of 20 mm is 0.75 dB/turn or smaller.

公开(公告)号：EP4023619A1

公开(公告)日：2022-07-06

申请号：EP20858408.6

申请日：2020-08-27

申请人： Furukawa Electric Co., Ltd.

发明人： MUKASA, Kazunori ,  MIHALFFY, Tamas ,  VARALLYAY, Zoltan

IPC分类号： C03C25/1065 ,  C03C25/36 ,  G02B6/036 ,  G02B6/44

摘要： To provide an optical fiber having high compatibility with respect to G.652 standard and a further smaller diameter, the optical fiber includes a core portion made of silica based glass; a cladding portion made of silica based glass and configured to cover an outer periphery of the core portion, the cladding portion having a refractive index that is lower than a maximum refractive index of the core portion; and a coating portion configured to cover an outer periphery of the cladding portion, the coating portion including a primary coating layer located on the cladding portion side and a secondary coating layer located on an outer peripheral side of the primary coating layer. An outer diameter of the cladding portion is less than 100 µm, a thickness of the primary coating layer is larger than or equal to 15 µm, a mode field diameter at a wavelength of 1310 nm is larger than or equal to 8.6 µm and smaller than or equal to 9.2 µm, an effective cutoff wavelength is smaller than or equal to 1260 µm, and a bending loss at a wavelength of 1550 nm when bending is made at a diameter of 60 mm is smaller than or equal to 0.1 dB/100 turn.

公开(公告)号：EP2955533B1

公开(公告)日：2017-05-17

申请号：EP14762948.9

申请日：2014-02-12

申请人： Furukawa Electric Co., Ltd. ,  Furukawa Automotive Systems Inc.

发明人： IWANE, Noriyasu ,  YOKOYAMA, Koichi ,  TAKASHIMA, Naoya ,  MITSUYAMA, Taiji ,  KOVATS, Antal ,  MIHALFFY, Tamas ,  ROMVARI, Lorand

IPC分类号： G01R31/36 ,  H01M10/44 ,  H01M10/48 ,  H02J7/00

CPC分类号： G01R31/3648 ,  G01R31/3624 ,  G01R31/3651 ,  G01R31/3662 ,  G01R31/3679 ,  H01M10/48 ,  H02J7/0021

公开(公告)号：EP2952921A1

公开(公告)日：2015-12-09

申请号：EP14760244.5

申请日：2014-02-23

申请人： Furukawa Electric Co., Ltd. ,  Furukawa Automotive Systems Inc.

发明人： MITSUYAMA, Taiji ,  IWANE, Noriyasu ,  YOKOYAMA, Koichi ,  TAKASHIMA, Naoya ,  KOVATS, Antal ,  MIHALFFY, Tamas ,  ROMVARI, Lorand

IPC分类号： G01R31/36 ,  H01M10/44 ,  H01M10/48 ,  H02J7/00

CPC分类号： G01R31/3679 ,  G01R31/3624 ,  G01R31/3648 ,  G01R31/3662 ,  H01M10/44 ,  H01M10/48 ,  H02J7/0021 ,  H02J7/007

摘要： To provide a secondary battery state detecting device that decreases the deterioration in capacity of the secondary battery and is low in arithmetic cost.
A secondary battery state detecting device that detects a state of a secondary battery includes discharge means (discharge circuit (15)) for subjecting the secondary battery (14) to a pulse discharge, acquiring means (controller (10)) for controlling the discharge means to subject the secondary battery to at least one pulse discharge, and acquiring a time variation of a voltage value at that time, calculating means (controller (10)) for calculating a parameter of a predetermined function having time as a variable by fitting the variation of the voltage value acquired by the acquiring means using the predetermined function, and detecting means (controller (10)) for detecting the state of the secondary battery on the basis of the parameter of the predetermined function calculated by the calculating means.

摘要翻译： 提供一种二次电池状态检测装置确实降低了二次电池的容量劣化且成本低的算术。 一种二次电池状态检测装置没有检测到二次电池的状态包括排出装置（放电电路（15））用于控制所述排出装置的二次电池（14）经受脉冲放电，获取装置（控制器（10）） 到二次电池经受至少一个脉冲放电，并获取在没有时间的电压值的时间变化，计算装置（控制器（10））为通过拟合变化计算的预定具有时间功能作为变量的参数 的，用于检测由所述计算装置计算的预定函数的参数的基础上对二次电池的状态，通过使用规定的函数获取装置所获取的电压值，和检测装置（控制器（10））。