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公开(公告)号：US12174412B2
公开(公告)日：2024-12-24
申请号：US17894292
申请日：2022-08-24
Applicant: FURUKAWA ELECTRIC CO., LTD.
Inventor： Kazunori Mukasa
Abstract: A multi-core fiber includes: a plurality of core portions each including a central core portion, an intermediate layer formed on an outer periphery of the central core portion, and a trench layer formed on an outer periphery of the intermediate layer; and a cladding portion formed on an outer periphery of the plurality of core portions, wherein in each of the plurality of core portions, Δ1>Δ2>Δ3 and 0%>Δ3>−0.3% are satisfied, where Δ1 is an average maximum relative refractive-index difference of the central core portion, Δ2 is an average relative refractive-index difference of the intermediate layer, and Δ3 is an average relative refractive-index difference of the trench layer, with respect to the cladding portion.
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公开(公告)号：US12170158B2
公开(公告)日：2024-12-17
申请号：US17983830
申请日：2022-11-09
Applicant: FURUKAWA ELECTRIC CO., LTD.
Inventor： Toyomitsu Asakura , Eiji Konda , Yoshimitsu Kuroki
Abstract: A metallic cable includes, in order from an inner side thereof, a plurality of coated conduction wires, a press winding tape, a laminated tape, and an outer jacket. The outer jacket is provided on an outer circumference of the laminated tape and such that it covers the outer circumference of the laminated tape. The outer jacket is made of polyethylene having a density greater than or equal to that of medium-density polyethylene (MDPE) (≥930 kg/m3), and more preferably made of high-density polyethylene (≥942 kg/m3). If polyethylene having a density that is equal to or greater than that of MDPE is used to form the outer jacket, the temperature that is appropriate for extruding MDPE approaches a bonding temperature range of the resin layer of the laminated tape. The resin layer and the metal layer can be bonded and joined together at an overlapped part, tightly enclosing a cable core.
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公开(公告)号：US12168222B2
公开(公告)日：2024-12-17
申请号：US17299639
申请日：2019-12-03
Applicant: FURUKAWA ELECTRIC CO., LTD.
Inventor： Yuichiro Banba , Kaori Sekine , Yukako Nakai , Mai Nishii , Masayuki Fukushima , Sadahiro Kato , Atsushi Shimoyamada , Tomohiko Mori , Takao Masuda , Yuta Nakasaka , Takuya Yoshikawa
Abstract: A synthesis gas production catalyst structure or the like which can maintain stable high catalytic activity for a long period of time without degradation and can allow efficient production of a synthesis gas including carbon monoxide and hydrogen. The synthesis gas production catalyst structure 1 for use in producing a synthesis gas comprising carbon monoxide and hydrogen, the synthesis gas production catalyst structure 1 including: supports each having a porous structure and including a zeolite-type compound; and at least one catalytic material present in the support, in which each of the supports has channels communicating with one another, each of the supports has a ratio (L/d ratio) of long side dimension L to thickness dimension d of 5.0 or more, and the catalytic material is present at least in the channel of each of the supports.
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公开(公告)号：US20240380176A1
公开(公告)日：2024-11-14
申请号：US18782562
申请日：2024-07-24
Applicant: FURUKAWA ELECTRIC CO., LTD.
Inventor： Masahiro YOSHIDA , Kazuaki KIYOTA
Abstract: An optical semiconductor element includes: a substrate expanding while intersecting a first direction; a first protrusion part protruding from the substrate in the first direction and including semiconductor layers including an active layer; a second protrusion part protruding from the substrate in the first direction, in a position apart from the first protrusion part in a second direction intersecting the first direction, the second protrusion part including a semiconductor layer, and being configured to function as a position determining part used for determining a position relative to a component part different from the optical semiconductor element; and a first semiconductor layer formed throughout a first section positioned behind the first protrusion part in the first direction, a second section positioned behind the second protrusion part in the first direction, and a third section positioned between the first section and the second section.
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公开(公告)号：US20240380172A1
公开(公告)日：2024-11-14
申请号：US18652513
申请日：2024-05-01
Applicant: NICHIA CORPORATION , FURUKAWA ELECTRIC CO., LTD.
Inventor： Takashi NAMIE , Kazuma KOZURU
IPC: H01S5/02255 , H01S5/02251 , H01S5/02253 , H01S5/40
Abstract: A light-emitting device includes a substrate having a mounting surface, a semiconductor laser element supported by the mounting surface, a first mirror member supported by the mounting surface and having a first reflective surface, and a second mirror member supported by a support member and spaced apart from the first mirror member, and having a second reflective surface at least a part of which is positioned above at least a part of the first reflective surface. The semiconductor laser element is configured to emit a laser beam toward the first reflective surface in a first direction, the first reflective surface reflects the laser beam to change a traveling direction of the laser beam to a second direction, and the second reflective surface reflects the laser beam reflected by the first reflective surface to change the traveling direction of the laser beam to a third direction.
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Patent Agency Ranking
公开(公告)号：US20240371404A1
公开(公告)日：2024-11-07
申请号：US18686441
申请日：2022-08-25
Applicant: FURUKAWA ELECTRIC CO., LTD. , UACJ Corporation
Inventor： Hideyuki HATAKEYAMA , Koichiro TAKIGUCHI
Abstract: The purposes of the present invention are to provide a substrate for a magnetic disk and a disk capable of maintaining long-term reliability of a hard disk while dealing with an increase in capacity of the hard disk and to provide a manufacturing method by which a magnetic disk (substrate therefor) having the above-mentioned characteristic can be manufactured. The present invention pertains to: a magnetic disk (substrate therefor) having a pair of main surfaces, wherein a 0.4 to 5.0 mm cutoff wavelength of at least one of the main surfaces of the magnetic disk (substrate therefor) at 25° C. after a predetermined thermal shock test has long wavelength waviness Wa of 2.0 nm or less, especially 0.5 to 2.0 nm, and a 0.08 to 0.45 mm cutoff wavelength thereof has short wavelength waviness μWa of 0.15 nm or less, especially 0.05 to 0.15 nm; and a manufacturing method thereof.
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公开(公告)号：US20240368358A1
公开(公告)日：2024-11-07
申请号：US18775986
申请日：2024-07-17
Applicant: FURUKAWA ELECTRIC CO., LTD.
Inventor： Jae Kyung KIM , Hiroki KINOSHITA , Yukihiro IKURA , Yasuo NAKAJIMA , Kenichi SUYAMA
IPC: C08J5/04
Abstract: A cellulose fiber reinforced resin composition, containing a thermoplastic resin containing a polyolefin resin and an alkoxysilane-modified polypropylene resin, and 101 to 400 mass parts of cellulose fibers based on 100 mass parts of the thermoplastic resin, wherein, in planar view observation, a total area of aggregates of the cellulose fibers is 1.00 mm2/cm2 or less; a method of producing this cellulose fiber reinforced resin composition; and a cellulose fiber reinforced resin formed body.
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公开(公告)号：US20240368357A1
公开(公告)日：2024-11-07
申请号：US18777073
申请日：2024-07-18
Applicant: FURUKAWA ELECTRIC CO., LTD.
Inventor： Hiroki CHIBA , Yusuke KAMADA , Takahiro SAKURAI
IPC: C08J3/24 , C08G77/20 , C08J3/22 , C08K3/26 , C08K3/36 , C08K5/13 , C08K5/14 , C08K5/5425 , C08L23/08 , C08L23/14 , C08L27/18
Abstract: A silane crosslinkable silicone rubber composition including: with respect to 100 parts by mass of a base rubber containing a millable silicone rubber, 1 to 15 parts by mass of a silane coupling agent graft-bonded to the base rubber; 0.5 to 300 parts by mass of an inorganic filler; and 0.01 to 0.5 parts by mass of a silanol condensation catalyst, a method of producing the same, a silane crosslinked silicone rubber formed body obtained by using the silane crosslinkable silicone rubber composition, and a method of producing the same, and a silane crosslinked silicone rubber formed article including the silane crosslinked silicone rubber formed body.
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公开(公告)号：US12119137B2
公开(公告)日：2024-10-15
申请号：US17782488
申请日：2020-12-04
Applicant: FURUKAWA ELECTRIC CO., LTD.
Inventor： Akinobu Nakai
Abstract: A connection structure of high-temperature superconducting wires includes first and second superconducting wires which are high-temperature superconducting wires respectively having a base material consisting of metal or alloy, and an oxide superconducting layer formed on the base material. A joint portion containing a superconducting connection portion between the first and second superconducting wires joins the first and second superconducting wires in a positional relationship facing the surfaces of first and second superconducting layers which are the oxide superconducting layers of each of the first and second superconducting wires, are opposed to each other. In a base material of at least one superconducting wire among the first and second superconducting wires, a first portion constituting the joint portion is thicker than a second portion not constitute the joint portion in the same base material.
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20.发明公开公开(公告)号：US20240332960A1
公开(公告)日：2024-10-03
申请号：US18743349
申请日：2024-06-14
Applicant: FURUKAWA ELECTRIC CO., LTD.
Inventor： Asuka ABE
CPC classification number: H02J1/102 , H02J1/08 , H02J13/00006 , H02M3/04
Abstract: An electric power converter includes: a direct current electric power conversion unit connected to a direct current bus and configured to convert input electric power and output the converted electric power; a measurement unit configured to obtain a measured value of an electric characteristic value of the input electric power or the output electric power; a communication unit configured to perform communication with an external device and receive a reference function having a characteristic with a defined target value for an electric characteristic value according to an input value; a storage unit configured to store a standard reference function having a predetermined characteristic; and a control unit configured to control an electric power conversion characteristic of the electric power conversion unit based on a target value determined according to an input value, by voltage control corresponding to the characteristic, or by electric power control or electric current control.
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