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公开(公告)号：US20230125967A1
公开(公告)日：2023-04-27
申请号：US18069761
申请日：2022-12-21
Applicant: FURUKAWA ELECTRIC CO., LTD.
Inventor： Masahiro RIKISO , Asuka ABE
Abstract: An electric power converter is electrically connected to an electric storage device. The electric power converter is configured to refer to, according to voltage measured by the electric power converter, a reference function as output target for the electric storage device, the reference function having drooping characteristic and representing a control target function. The reference function has a constant-input-output region over a predetermined voltage range. The reference function is updated based on battery status of the electric storage device.
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公开(公告)号：US20230123198A1
公开(公告)日：2023-04-20
申请号：US18081998
申请日：2022-12-15
Applicant: FURUKAWA ELECTRIC CO., LTD.
Inventor： Tetsuya Yasutomi
Abstract: An optical fiber ribbon is configured by arranging in parallel and coupling a plurality of single-core optical fibers. The optical fibers adjacent to each other are intermittently bonded by coupling parts at predetermined intervals in the longitudinal direction of the optical fiber ribbon. The coupling parts adjacent to each other in the width direction are disposed to be displaced from each other in the longitudinal direction of the optical fiber ribbon. In the optical fiber ribbon, the adjacent optical fibers are intermittently coupled by the coupling parts in the longitudinal direction, and the amounts of resin of the coupling parts are not uniform in the longitudinal direction of the optical fibers. Moreover, the Young's modulus of resin constituting the coupling part is preferably 130 MPa or less, and more preferably 80 MPa or less.
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公开(公告)号：US11624787B2
公开(公告)日：2023-04-11
申请号：US16810506
申请日：2020-03-05
Inventor： Naotaka Uchino , Etsuzo Sato
IPC: G01R31/52 , G01R31/396 , G01R31/36 , G01R31/382 , H02J7/00 , G01R31/392
Abstract: A rechargeable battery short-circuit early detection device that detects a short-circuit in a rechargeable battery includes one or more processors connected to a current sensor that detects a charging current of the rechargeable battery, wherein the one or more processors are programmed to: while the rechargeable battery is being charged, receive a current signal indicating the charging current from the current sensor; detect a temporal change in the charging current indicated by the current signal; determine, when the charging current increases over time, that there is a possibility that the rechargeable battery has short-circuited; and output data indicating a determined result.
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公开(公告)号：US11605935B2
公开(公告)日：2023-03-14
申请号：US17187086
申请日：2021-02-26
Applicant: FURUKAWA ELECTRIC CO., LTD.
Inventor： Junji Yoshida , Hirokazu Itoh , Satoshi Irino , Yuichiro Irie , Taketsugu Sawamura
IPC: H01S5/00 , H01S5/32 , H01S3/067 , H01S5/34 , H01S5/22 , H01S5/20 , H01S5/343 , H01S5/227 , B82Y20/00 , H01S5/10 , H01S5/02251 , H01S5/02253 , H01S3/094 , H01S5/024 , H01S3/04 , H01S5/14 , H01S5/028 , H01S3/30 , H01S3/0941
Abstract: An optical semiconductor device outputting a predetermined wavelength of laser light includes a quantum well active layer positioned between a p-type cladding layer and an n-type cladding layer in thickness direction. The optical semiconductor device includes a separate confinement heterostructure layer positioned between the quantum well active layer and the n-type cladding layer. The optical semiconductor device further includes an electric-field-distribution-control layer positioned between the separate confinement heterostructure layer and the n-type cladding layer and configured by at least two semiconductor layers having band gap energy greater than band gap energy of a barrier layer constituting the quantum well active layer. The optical semiconductor device is applied to a ridge-stripe type laser.
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公开(公告)号：US11581706B2
公开(公告)日：2023-02-14
申请号：US17186933
申请日：2021-02-26
Applicant: FURUKAWA ELECTRIC CO., LTD.
Inventor： Junji Yoshida , Hirokazu Itoh , Satoshi Irino , Yuichiro Irie , Taketsugu Sawamura
IPC: H01S5/00 , H01S5/32 , H01S3/067 , H01S5/34 , H01S5/22 , H01S5/20 , H01S5/343 , H01S5/227 , B82Y20/00 , H01S5/10 , H01S5/02251 , H01S5/02253 , H01S3/094 , H01S5/024 , H01S3/04 , H01S5/14 , H01S5/028 , H01S3/30 , H01S3/0941
Abstract: An optical semiconductor device outputting a predetermined wavelength of laser light includes a quantum well active layer positioned between a p-type cladding layer and an n-type cladding layer in thickness direction. The optical semiconductor device includes a separate confinement heterostructure layer positioned between the quantum well active layer and the n-type cladding layer. The optical semiconductor device further includes an electric-field-distribution-control layer positioned between the separate confinement heterostructure layer and the n-type cladding layer and configured by at least two semiconductor layers having band gap energy greater than band gap energy of a barrier layer constituting the quantum well active layer. The quantum well active layer is doped with 0.3 to 1×1018/cm3 of n-type impurity.
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Patent Agency Ranking
86.发明申请公开(公告)号：US20230043014A1
公开(公告)日：2023-02-09
申请号：US17759554
申请日：2021-01-15
Applicant: FURUKAWA ELECTRIC CO., LTD.
Inventor： Atsushi HIMURA , Takeshi YAGI , Kazutaka NARA , Katsuki SUEMATSU , Tsunenori ARAI
IPC: A61F2/02
Abstract: A medical device used for implanting in a body includes a main body, a container included in the main body, and an insulating soft portion that closes an opening of the container. An electrically conductive first conductive portion is disposed on a bottom of the container, and an electrically conductive second conductive portion disposed on the main body. The first conductive portion and the second conductive portion are electrically connected to each other.
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公开(公告)号：US11575190B2
公开(公告)日：2023-02-07
申请号：US16419567
申请日：2019-05-22
Applicant: FURUKAWA ELECTRIC CO., LTD.
Inventor： Fumie Yamaguchi , Satoru Torimitsu
Abstract: In a transmission path transmitting high-frequency signals each signal contains a frequency component of over 8 GHz. The transmission path includes a nickel-phosphorus layer containing nickel and phosphorus, and a phosphorus concentration of the nickel-phosphorus layer is over 0 mass % and less than 8 mass %. Such a structure enables the transmission path to have little loss even when a signal at a frequency of over 8 GHz is transmitted.
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88.发明授权公开(公告)号：US11575162B2
公开(公告)日：2023-02-07
申请号：US16914118
申请日：2020-06-26
Inventor： Masashi Matsushita , Katsuhide Hamada
Abstract: A chargeable battery temperature estimation apparatus estimating an internal temperature of a chargeable battery includes a processor performing when executing the instructions stored in a memory: acquiring a detected current value output from a current sensor configured to detect a current flowing in the chargeable battery; calculating a heating value on the basis of the detected current value, the heating value estimating heat generated inside the chargeable battery; acquiring a detected external temperature value output from a temperature sensor configured to detect an external temperature of the chargeable battery; estimating the internal temperature of the chargeable battery based on the calculated heating value and the detected temperature value; and outputting the estimated internal temperature.
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公开(公告)号：US20230020128A1
公开(公告)日：2023-01-19
申请号：US17951291
申请日：2022-09-23
Applicant: FURUKAWA ELECTRIC CO., LTD.
Inventor： Takahiro TOMIYASU , Eisaku KAJI , Yutaka OHKI
IPC: H01S5/023 , H01S5/02345
Abstract: A submount includes a light emitting device mounted thereon. The submount includes: a base including a first surface extending in a first direction and in a second direction that is orthogonal to the first direction; a first electrode extending in the first direction and in the second direction on the first surface, the first electrode including a first end in the second direction, and a second end in opposite direction of the second direction, the second end extending in the first direction; and a second electrode extending in the first direction and in the second direction on the first surface, the second electrode including a third end in the opposite direction of the second direction, the third end being separated from the first end in the second direction with a gap therebetween, and a fourth end in the second direction, the fourth end extending in the first direction. In the second electrode, a second width between the third end and the fourth end in the second direction differs according to a position in the first direction.
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公开(公告)号：US20230016058A1
公开(公告)日：2023-01-19
申请号：US17952325
申请日：2022-09-26
Inventor： Rodrigo Kendy YAMASHITA , Shinichi HAMASAKI , Takahisa KAKUDO , Yoji TAJIRI
IPC: H01R35/02
Abstract: A rotary connector device includes a stator, a rotator, a first connector, and a second connector. The rotator is rotatable about a rotation axis with respect to the stator. The first connector is provided at the rotator. The second connector is provided at the stator. The first connector includes a first lead block which is attached to the rotator and a second lead block which is a member separated from the first lead block and is attached to the rotator. When viewed from an axial direction along the rotation axis, the first lead block is disposed so as to overlap at least partially the second lead block.
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