Patents Assigned to Furukawa Electric Co., Ltd.
  • Publication number: 20230327436
    Abstract: A power system includes: a direct-current bus to which a power generation device and a plurality of power devices are connected; and a plurality of battery devices connected at predetermined intervals from one end of the direct-current bus to another end and configured to supply and receive power to and from the direct-current bus.
    Type: Application
    Filed: June 12, 2023
    Publication date: October 12, 2023
    Applicants: TOHOKU UNIVERSITY, FURUKAWA ELECTRIC CO., LTD.
    Inventors: Taiichi OTSUJI, Katsumi IWATSUKI, Hirohito YAMADA, Masafumi YASHIMA, Masakazu MATSUI, Hiroyuki KOSHI
  • Patent number: 11780731
    Abstract: The present disclosure relates to a carbon nanotube wire includes a carbon nanotube aggregate constituted of a plurality of carbon nanotubes. In the plurality of carbon nanotubes, a mean length of the plurality of carbon nanotubes is not larger than 150 ?m, a CV value of the mean length is not smaller than 0.40, a mean diameter of the plurality of carbon nanotubes is smaller than 4 nm, a CV value of the mean diameter is not smaller than 0.18, and a proportion of carbon nanotubes with lengths not smaller than 3 ?m is not less than 60%.
    Type: Grant
    Filed: September 29, 2020
    Date of Patent: October 10, 2023
    Assignee: Furukawa Electric Co., Ltd.
    Inventor: Sawa Sakai
  • Publication number: 20230318256
    Abstract: A laser light source includes: a submount; a semiconductor laser element fixed to the submount, the semiconductor laser element having a light-exiting surface through which laser light is to be emitted; a lens member having a light incident surface on which the laser light is incident and a bonding surface that extends laterally from the light incident surface; a supporting member connecting the lens member and the submount together so that the light incident surface of the lens member faces the light-exiting surface of the semiconductor laser element; and an inorganic bonding layer bonding the bonding surface of the lens member and the supporting member together. Between the light incident surface and the bonding surface, the lens member has a surface extending in a direction intersecting the light incident surface and the bonding surface.
    Type: Application
    Filed: March 27, 2023
    Publication date: October 5, 2023
    Applicants: NICHIA CORPORATION, FURUKAWA ELECTRIC CO., LTD.
    Inventors: Hideaki TAKEDA, Norihiro DEJIMA, Kazuma KOZURU, Toshiaki YAMASHITA, Akira YUKUMOTO
  • Publication number: 20230319993
    Abstract: An optical apparatus includes: a housing; at least one component housed in the housing, the at least one component being configured to be energized and perform at least one of outputting light, receiving light, and changing a property of light; a plurality of external connection conductors configured to penetrate through the housing; and a flexible substrate housed in the housing, the flexible substrate including an insulation layer, a plurality of conductive wires each configured to perform at least one of conduction between the component and the external connection conductors, conduction between the external connection conductors, and conduction between a plurality of the components each serving as the at least one component, a base part in which the conductive wires are covered by the insulation layer, and a plurality of arm parts protruding and extending from the base part, each including one of the conductive wires.
    Type: Application
    Filed: June 9, 2023
    Publication date: October 5, 2023
    Applicant: FURUKAWA ELECTRIC CO., LTD.
    Inventors: Atsushi IZAWA, Kazuya NAGASHIMA
  • Publication number: 20230316904
    Abstract: A communication system includes a plurality of roadside units installed in respective areas that acquires travel information about a vehicle through radio communication, and a first terminal to which the plurality of roadside units is connected. The roadside units and the first terminal each include a routing processing unit, implemented by software. The routing processing unit performs a communication process in line with a routing table updated based on the travel information.
    Type: Application
    Filed: March 15, 2023
    Publication date: October 5, 2023
    Applicant: FURUKAWA ELECTRIC CO., LTD.
    Inventors: Tomoaki TERASAKI, Kenichi GOTO, Yan XIE, Ryotaka MIYAMOTO, Masahiro ASAMI
  • Publication number: 20230311243
    Abstract: A laser welding method includes: forming a molten weld pool by emitting laser light including a main power region and a sub-power region onto a workpiece, the main power region including at least one main beam, the sub-power region including at least one sub-beam having a lower power density than power density of the main beam; and solidifying the molten weld pool. The sub-beam is emitted onto the workpiece such that a void formed inside the molten weld pool escapes to outside of the molten weld pool before the molten weld pool becomes solidified.
    Type: Application
    Filed: April 17, 2023
    Publication date: October 5, 2023
    Applicant: FURUKAWA ELECTRIC CO., LTD.
    Inventors: Nobuyasu MATSUMOTO, Tomomichi YASUOKA, Sayo SUGA, Toshiaki SAKAI, Masamitsu KANEKO, Takashi SHIGEMATSU, Kazuyuki UMENO, Jun TERADA
  • Publication number: 20230312883
    Abstract: A cellulose fiber reinforced thermoplastic resin formed body, containing a thermoplastic resin, a cellulose fiber and an organic fiber different from the cellulose fiber, in which, in the resin formed body, the content of the thermoplastic resin is 39 to 80 mass %, the content of the cellulose fiber is 5 to 55 mass %, and the content of the organic fiber different from the cellulose fiber is 4 to 35 mass %; and a method of producing the same.
    Type: Application
    Filed: June 7, 2023
    Publication date: October 5, 2023
    Applicant: FURUKAWA ELECTRIC CO., LTD.
    Inventors: Yukihiro IKURA, Kenichi SUYAMA, Mayu SATAKE, Yui HAMURO, Yasuo NAKAJIMA
  • Publication number: 20230314700
    Abstract: An optical fiber bundle structure includes: a plurality of optical fiber core wires; and a capillary, wherein each of the optical fiber core wires includes a glass fiber portion including a core and a clad, and a resin coated portion, the glass fiber portions are inserted in the capillary, and d2/d1 is equal to or larger than 0.57 and smaller than 1, where d1 is a diameter of the core of each of the glass fiber portions in a rear end portion of the capillary and d2 is a diameter of the core of each of the glass fiber portions in a distal end portion of the capillary.
    Type: Application
    Filed: June 9, 2023
    Publication date: October 5, 2023
    Applicant: FURUKAWA ELECTRIC CO., LTD.
    Inventors: Kengo WATANABE, Masanori TAKAHASHI, Ryuichi SUGIZAKI, Koichi MAEDA, Shigehiro TAKASAKA
  • Patent number: 11776713
    Abstract: A wire harness manufacturing system including a plurality of processing zones and configured to manufacture a wire harness by using a subassembly including a plurality of electrical lines to each of which a connection component is attached includes a conveyance device provided along the plurality of processing zones and including: work boards in a number at least corresponding to the number of the plurality of processing zones; a circulation conveyer configured to sequentially convey each work board in a horizontal state from an upstream side to a downstream side on a downstream conveyance path along the plurality of processing zones and then return the work board from the downstream side to the upstream side on an upstream conveyance path; and a raiser configured to set the work board to a stand-up state in which one of edge parts extending in a conveyance direction of the work board is positioned on an upper side of the other edge part in the work board, and to set the work board in the stand-up state to th
    Type: Grant
    Filed: December 21, 2020
    Date of Patent: October 3, 2023
    Assignees: FURUKAWA ELECTRIC CO., LTD., FURUKAWA AUTOMOTIVE SYSTEMS INC.
    Inventors: Eiji Aramaki, Koji Kato, Mitsuyuki Akai, Takayuki Okubo, Nobuyuki Minami
  • Patent number: 11772006
    Abstract: A method for cleaning a vaporizer that vaporizes, at normal temperature and pressure, a source material in a liquid state, and supplies the vaporized source material to a reactor through a supply pipe, includes a cleaning step of passing the source material to the vaporizer while maintaining the source material in a liquid state to clean the vaporizer.
    Type: Grant
    Filed: August 26, 2021
    Date of Patent: October 3, 2023
    Assignee: FURUKAWA ELECTRIC CO., LTD.
    Inventors: Hiroki Otani, Mitsuhiro Kawasaki, Toshiyuki Asai
  • Publication number: 20230307880
    Abstract: Provided is a rotating connector device with which it is possible to suppress an increase in the size of the device, and to reliably suppress a decrease in electromagnetic compatibility due to electromagnetic noise and to stabilize characteristic impedance. A rotating connector device 1 is provided with a fixed-side housing 10, a rotating-side housing 20 which is free to rotate relative to the fixed-side housing 10, and a plurality of flat cables 30 which are formed by covering conductors with an insulating material and which are accommodated in a stacked state in an annular accommodating space S formed between the fixed-side housing 10 and the rotating-side housing 20, wherein a shield film 35 is disposed at least between a first flat cable 31 including first and second communication circuit conductors 31a5, 31a6 and a second flat cable 32 adjacent to the first flat cable 31, among the plurality of flat cables 30.
    Type: Application
    Filed: May 26, 2023
    Publication date: September 28, 2023
    Applicants: FURUKAWA ELECTRIC CO., LTD., FURUKAWA AUTOMOTIVE SYSTEMS INC.
    Inventors: Yuto NAKAMURA, Kaoru SUGIMOTO, Naoyuki KOJIMA, Yoshiyuki SUZUKI, Masaya ARAKI, Yuka SAWADA
  • Publication number: 20230307859
    Abstract: Provided is a female terminal. The female terminal includes a spring member and a terminal main body. The spring member is electrically connected to a male terminal to be connected. The terminal main body includes a base portion which has electrical conductivity and is electrically connected to the spring member. The base portion has a pair of side walls spaced apart by an insertion space that is inserted with a part of the male terminal. The spring member is arranged between the pair of side walls in the base portion, and the spring member is fixed to the side wall with a conductive welded portion with which the spring member is conductively welded to the side wall.
    Type: Application
    Filed: June 2, 2023
    Publication date: September 28, 2023
    Applicants: FURUKAWA ELECTRIC CO., LTD., FURUKAWA AUTOMOTIVE SYSTEMS INC.
    Inventors: Tomoaki TANIGAWA, Takeshi WATANABE, Yukihiro KAWAMURA, Junya TAKESHITA, Takahiro IMAMURA
  • Publication number: 20230295417
    Abstract: A resin composition for a flexible device, containing an epoxy resin and a phenoxy resin, wherein a cured product of the resin composition has a glass transition temperature of 60° C. or higher, and the cured product has a storage modulus of 5.0 GPa or less, a film-like adhesive using the resin composition, an adhesive sheet having a laminated structure of the film-like adhesive and a flexible base material, and a method of producing a flexible device.
    Type: Application
    Filed: May 30, 2023
    Publication date: September 21, 2023
    Applicant: FURUKAWA ELECTRIC CO., LTD.
    Inventor: Koyuki SAKAI
  • Publication number: 20230296449
    Abstract: A temperature sensor includes: a light source outputting test light; a sensor optical fiber transmitting, when the test light is inputted, the test light at any temperature within a temperature range of 20° C. to 150° C. with a loss of 0.3 dB/m or more; a light receiver receiving the test light transmitted by the sensor optical fiber; and a processing device detecting temperature of the sensor optical fiber based on intensity of the test light received by the light receiver. The sensor optical fiber includes a core, and a clad provided on an outer circumference of the core; and, when the temperature of the sensor optical fiber increases, the temperature sensor 1 detects the temperature with a change in the intensity of the test light received by the light receiver increases, caused by an increase in a refractive index difference between the core and the clad, and an increase in confinement of the test light transmitted in the core.
    Type: Application
    Filed: March 15, 2023
    Publication date: September 21, 2023
    Applicant: FURUKAWA ELECTRIC CO., LTD.
    Inventor: Hideaki HASEGAWA
  • Publication number: 20230298458
    Abstract: A communication system includes: a plurality of roadside units installed in respective areas that acquires travel information about a vehicle through radio communication; a first terminal connected to the plurality of roadside units; and a server that executes control as a control plane to acquire the travel information from the roadside unit, predict the roadside unit belonging to the plurality of roadside units and installed in an intended area where the vehicle is predicted to travel and predict arrival time at the intended area based on the acquired travel information, and manage communication through the roadside unit and the first terminal so as to construct a communication path between the predicted roadside unit and the first terminal before the arrival time.
    Type: Application
    Filed: March 15, 2023
    Publication date: September 21, 2023
    Applicant: FURUKAWA ELECTRIC CO., LTD.
    Inventors: Ryotaka MIYAMOTO, Kenichi GOTO, Yan XIE, Tomoaki TERASAKI, Masahiro ASAMI
  • Publication number: 20230295470
    Abstract: A base material/adhesive layer integrated sheet for a flexible device, containing a flexible film and an adhesive layer, in which the flexible film and the adhesive layer are laminated, an absolute value of a difference between surface free energy of the flexible film and surface free energy of a cured layer obtained by curing the adhesive layer is 30 dyn/cm or less, and the cured layer has a storage modulus of 5.0 GPa or less; and a method of producing a flexible device with the same.
    Type: Application
    Filed: May 30, 2023
    Publication date: September 21, 2023
    Applicant: FURUKAWA ELECTRIC CO., LTD.
    Inventors: Koyuki SAKAI, Kenji TOKUHISA
  • Publication number: 20230299569
    Abstract: Provided are: a joining structure making it possible to join resin plates together without needing to provide a surplus resin plate section for joining, and offering excellent workability in the joining together of resin plates; a method of producing same; and a wire exterior cover using the joining structure. A joining structure 1 comprises a joining part 10 formed by butt-welding a plate surface part 22 of a first resin plate 21 made of a first resin, and an end surface part 24 of a second resin plate 23 made of a second resin. In the joining structure, a foam resin is used for the first resin and a foam resin or a non-foam resin is used for the second resin. The joining part 10 has a welding recess 25 in a surface 22a of the plate surface part 22. In an internal corner 10a of a reverse surface 22b, there is a padding section 27 formed by melt-flowing and solidifying of at least the first resin out of the first resin and the second resin.
    Type: Application
    Filed: May 26, 2023
    Publication date: September 21, 2023
    Applicants: FURUKAWA ELECTRIC CO., LTD., FURUKAWA AUTOMOTIVE SYSTEMS INC.
    Inventors: Hiroshi SUYAMA, Takashi OSHINO, Naoyuki KOJIMA
  • Patent number: 11764497
    Abstract: Provided is an electrical connection cassette with which it is possible to freely expand a device and add functions in accordance with the size of free space. An electrical connection cassette is provided with: a circuit board; and first connection terminals and second connection terminals mounted on the circuit board and having terminal shapes that can be engaged with each other. In a state with a terminal connection direction oriented in a predetermined direction with respect to the circuit board, the first connection terminals are disposed on the side of one main surface of the circuit board, and in a state with a terminal connection direction oriented in a direction parallel to the predetermined direction, the second connection terminals are disposed near the other main surface of the circuit board.
    Type: Grant
    Filed: January 13, 2022
    Date of Patent: September 19, 2023
    Assignees: FURUKAWA ELECTRIC CO., LTD., FURUKAWA AUTOMOTIVE SYSTEMS INC.
    Inventors: Hisao Honma, Hiroaki Rikihisa
  • Publication number: 20230288737
    Abstract: An optical module includes: a polarization controller that includes a main body including a polarization multiplexer and demultiplexer portion that, upon input of two kinds of light that are in perpendicularly-polarized states, performs polarization multiplexing on the two kinds of light and output polarization-multiplexed light, and upon input of light, performs polarization demultiplexing on the light and outputs two kinds of light that are in perpendicularly-polarized states, a first polarizer, a first input portion, a second input portion, a third input portion, a first output portion, and a second output portion; and an optical device configured to receive input of light via the polarization controller and output light via the polarization controller.
    Type: Application
    Filed: May 17, 2023
    Publication date: September 14, 2023
    Applicants: FURUKAWA ELECTRIC CO., LTD., NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Kazuya NAGASHIMA, Yozo ISHIKAWA, Josuke OZAKI, Yasuaki HASHIZUME
  • Patent number: 11754631
    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.
    Type: Grant
    Filed: December 22, 2022
    Date of Patent: September 12, 2023
    Assignees: FURUKAWA ELECTRIC CO., LTD., FURUKAWA AUTOMOTIVE SYSTEMS INC.
    Inventors: Masashi Matsushita, Katsuhide Hamada