Patents Assigned to Furukawa Automotive Systems Inc.
  • 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: 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
  • 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
  • Publication number: 20230272198
    Abstract: A resin composition, including the following components (A) and (B); and at least one kind of the following components (C) and (D): (A) a low density polyethylene resin; (B) an ethylene-vinyl acetate copolymer resin; (C) a thioether compound; and (D) fluororubber, in which: a content of the component (A) is 5 to 40 parts by mass and a content of the component (B) is 60 to 95 parts by mass in 100 parts by mass of a total content of the components (A) and (B), a total content of the components (C) and (D) is 0.05 to 1 part by mass with respect to 100 parts by mass of the total content of the components (A) and (B), and a proportion of a vinyl acetate component in the component (B) is 40 mass % or less.
    Type: Application
    Filed: May 2, 2023
    Publication date: August 31, 2023
    Applicants: FURUKAWA ELECTRIC CO., LTD., FURUKAWA AUTOMOTIVE SYSTEMS INC.
    Inventors: Kenji TAKAHASHI, Hideyuki OSUGA
  • Publication number: 20230272199
    Abstract: A resin composition, including: an ethylene-vinyl acetate copolymer resin as a resin component; an imidazole compound, a phenol compound, and a thioether compound as an antioxidant; and a bromine compound and an antimony compound as a flame retardant, wherein the resin composition has a content of the imidazole compound of 14 to 24 parts by mass, a content of the phenol compound of 1.0 to 2.0 parts by mass, a content of the thioether compound of 0.3 to 0.9 parts by mass, a content of the bromine compound of 15 to 30 parts by mass, and a content of the antimony compound of 5 to 15 parts by mass with respect to 100 parts by mass of a total content of the resin component in the resin composition.
    Type: Application
    Filed: May 9, 2023
    Publication date: August 31, 2023
    Applicants: FURUKAWA ELECTRIC CO., LTD., FURUKAWA AUTOMOTIVE SYSTEMS INC.
    Inventors: Kenji TAKAHASHI, Michimasa WATANABE, Akihiro NAGAO, Hideyuki OSUGA
  • Patent number: 11738700
    Abstract: A wire exterior body and an exterior-covered wire harness, capable of reducing vibration noise generated by vibration of the exterior body attached to a vehicle or the like and the wire harness in the exterior body, caused by vibration of the vehicle or the like, are provided. A wire exterior body to be attached to an outer periphery of a wire, formed by bending a resin sheet, includes a plurality of wall parts extending along the extending direction of the wire and forming an accommodating part for accommodating the wire. At least one of the plurality of wall parts has a protruding part protruding from the at least one wall part.
    Type: Grant
    Filed: September 10, 2019
    Date of Patent: August 29, 2023
    Assignees: Furukawa Electric Co., Ltd., Furukawa Automotive Systems Inc.
    Inventors: Takashi Oshino, Yoshikazu Kamei, Hiroshi Suyama, Shuji Yokozeki, Naoyuki Kojima
  • Patent number: 11692609
    Abstract: A damping member reduces noise between a rotary connector device and a vehicle body side, which are connected. An engaging portion is inserted through the damping member, and is provided in a rotary connector device. The engaging portion engages with an engaged portion provided in a vehicle body side, and includes an engaging shaft extending in an insertion direction and an engaging claw protruding from the tip side of the engaging shaft. The damping member is formed of butyl rubber, and includes a first slit through which the engaging shaft is inserted and a second slit extending from the first slit toward the protruding direction side of the engaging claw. The first slit and the second slit communicate with each other, the engaging portion being inserted there through.
    Type: Grant
    Filed: December 5, 2017
    Date of Patent: July 4, 2023
    Assignees: FURUKAWA ELECTRIC CO., LTD., FURUKAWA AUTOMOTIVE SYSTEMS INC.
    Inventors: Tanaka Satoshi, Tajiri Yoji, Yamagoshi Kenji, Oiwa Kento
  • Publication number: 20230168316
    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: if a detected temporal slope of the charging current exceeds a first threshold, determine that there is a possibility that a short circuit has occurred in at least one of the cells; detect anew a temporal slope of the charging current after a prescribed period of time has elapsed since the determination of said possibility; and thereafter, if the anew detected temporal slope of the charging current exceeds a second threshold that is greater than the first threshold, determine that there is a possibility that the short-circuit is progressing, and output a signal indicating said possibility.
    Type: Application
    Filed: February 1, 2023
    Publication date: June 1, 2023
    Applicants: FURUKAWA ELECTRIC CO., LTD., FURUKAWA AUTOMOTIVE SYSTEMS INC.
    Inventors: Naotaka UCHINO, Etsuzo SATO
  • Publication number: 20230170656
    Abstract: A rotary connector device includes a first case, a second case, an electrical cable, and a stopper structure. The stopper structure includes a movable member, a rotation restricting portion, and a guide portion. The movable member is movable relative to the second case between a first radial position and a second radial position in a radial direction. The rotation restricting portion is provided at the first case and contactable with the movable member in a circumferential direction to restrict a relative rotation of the first case and the second case in a state where the movable member is at the second radial position. The guide portion is provided at the first case and contactable with the movable member to guide the movable member toward the first radial position.
    Type: Application
    Filed: January 12, 2023
    Publication date: June 1, 2023
    Applicants: FURUKAWA ELECTRIC CO., LTD., FURUKAWA AUTOMOTIVE SYSTEMS INC.
    Inventors: Masaya ARAKI, Satoshi KITAO
  • Publication number: 20230170657
    Abstract: A rotary connector device includes a first case, a second case, and a stopper structure. The stopper structure includes a movable member, a movement conversion portion, and a stopper. The movable member is rotatable about a rotation axis along with the second case with respect to the first case. The movable member is movable in an axial direction defined along the rotation axis with respect to the first case and the second case. The movement conversion portion is to convert a relative rotation of the first case and the second case into a movement of the movable member in the axial direction with respect to the first case and the second case. The stopper is provided on at least one of the first case and the second case. The stopper is contactable with the movable member.
    Type: Application
    Filed: January 12, 2023
    Publication date: June 1, 2023
    Applicants: FURUKAWA ELECTRIC CO., LTD., FURUKAWA AUTOMOTIVE SYSTEMS INC.
    Inventors: Yohei YAMAGAMI, Shinichi HAMASAKI, Masaya ARAKI, Hirofumi UTSUNOMIYA
  • Publication number: 20230133056
    Abstract: A terminal-equipped electric wire includes a terminal and a coated conductive wire, which are electrically connected to each other. A crimp part of the terminal is a part that crimps the coated conductive wire and includes a conductive wire crimp part crimping a conductive wire exposed from a coating on a tip-end side of the coated conductive wire, and a coating crimp part crimping the coating of the coated conductive wire. The coated conductive wire includes a tension member disposed in an approximate center of a cross section, and a conductive wire including a plurality of conductors disposed on an outer periphery of the tension member. The tension member includes a plurality of strands. The conductive wire is crimped at the conductive wire crimp part from the entire circumference of the circumferential direction of the conductive wire. Preferably, a tensile strength of the tension member is greater than that of the conductive wire.
    Type: Application
    Filed: December 30, 2022
    Publication date: May 4, 2023
    Applicants: FURUKAWA ELECTRIC CO., LTD., FURUKAWA AUTOMOTIVE SYSTEMS INC.
    Inventors: Hirokazu TAKAHASHI, Hirofumi KAWANAKA, Junya TAKESHITA, Tetsuya HIRAIWA, Takuto WADA, Kengo MITOSE
  • Publication number: 20230139549
    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: Application
    Filed: December 22, 2022
    Publication date: May 4, 2023
    Applicants: FURUKAWA ELECTRIC CO., LTD., FURUKAWA AUTOMOTIVE SYSTEMS INC.
    Inventors: Masashi MATSUSHITA, Katsuhide HAMADA
  • Publication number: 20230138937
    Abstract: A wire harness exterior body and a wire harness with the exterior body, with which it is possible to appropriately restrict the route of the wire harness, and to eliminate dead space and reduce space in a vehicle, etc., in which the wire harness is used. This wire harness exterior body has a wire bundle in which a plurality of electric wires are bundled, the exterior body being formed from at least one flat member including a resin material, and contacting and supporting one surface of a wire aggregate including the wire bundle constituting a wire harness, or a plurality of divided wire bundles that are further branched from the wire bundle and extended. The exterior body having flat parts that restrict the route of the wire harness.
    Type: Application
    Filed: February 17, 2021
    Publication date: May 4, 2023
    Applicants: FURUKAWA ELECTRIC CO., LTD., FURUKAWA AUTOMOTIVE SYSTEMS, INC.
    Inventors: Takashi OSHINO, Hiroshi SUYAMA, Naoyuki KOJIMA
  • Patent number: 11624787
    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.
    Type: Grant
    Filed: March 5, 2020
    Date of Patent: April 11, 2023
    Assignees: FURUKAWA ELECTRIC CO., LTD., FURUKAWA AUTOMOTIVE SYSTEMS INC.
    Inventors: Naotaka Uchino, Etsuzo Sato
  • Publication number: 20230070010
    Abstract: A terminal-equipped electric wire includes a terminal and a coated conductive wire, which are electrically connected to each other. A crimp part of the terminal is crimped to the coated conductive wire, and has a conductive wire crimp part, which is crimped to a conductive wire that is exposed from a coating on the front-end side of the coated conductive wire, and a coating crimp part, which is crimped to the coating of the coated conductive wire. On the front-end side (terminal body side) of the conductive wire crimp part, an electric wire holding part, which applies a relatively strong holding force on the conductive wire, is provided, On the rear-end side (coating crimp part side) of the conductive wire crimp part, a conductive part for achieving conduction with the conductive wire is formed.
    Type: Application
    Filed: November 10, 2022
    Publication date: March 9, 2023
    Applicants: FURUKAWA ELECTRIC CO., LTD., FURUKAWA AUTOMOTIVE SYSTEMS INC.
    Inventors: Hirofumi KAWANAKA, Tetsuya HIRAIWA, Junya TAKESHITA, Hirokazu TAKAHASHI, Kengo MITOSE, Yoshinari MOTOYAMA
  • Patent number: 11575162
    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: June 26, 2020
    Date of Patent: February 7, 2023
    Assignees: FURUKAWA ELECTRIC CO., LTD., FURUKAWA AUTOMOTIVE SYSTEMS INC.
    Inventors: Masashi Matsushita, Katsuhide Hamada
  • Patent number: 11566371
    Abstract: According to embodiments of the present invention, a stranded conductor is formed in which the occurrence of defects, such as strand unevenness of filaments and outward protrusion of filaments, is inhibited. According to embodiments of the present invention, a stranded conductor (1a) includes soft filaments (2a) stranded together. The soft filaments (2a) include a soft filament made of an aluminum material, disposed along a center (101), and include six soft filaments, twelve soft filaments, and eighteen soft filaments made of an aluminum material, disposed around and concentrically with the center. The filaments are softened filaments that are softened. A lay length (Pa) is from 6.2 times to 15.7 times a conductor diameter of the stranded conductor.
    Type: Grant
    Filed: October 4, 2019
    Date of Patent: January 31, 2023
    Assignees: FURUKAWA ELECTRIC CO., LTD., FURUKAWA AUTOMOTIVE SYSTEMS INC.
    Inventors: Masahiro Yoshimaru, Hideyuki Osuga
  • Publication number: 20230016058
    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.
    Type: Application
    Filed: September 26, 2022
    Publication date: January 19, 2023
    Applicants: FURUKAWA ELECTRIC CO., LTD., FURUKAWA AUTOMOTIVE SYSTEMS INC.
    Inventors: Rodrigo Kendy YAMASHITA, Shinichi HAMASAKI, Takahisa KAKUDO, Yoji TAJIRI
  • Publication number: 20230015631
    Abstract: A rotary connector device includes a stator, a rotator, a first connector, and a second connector. The stator is configured to be attached to a vehicle body. The rotator is provided rotatably about a rotation axis with respect to the stator. The first connector is provided at the stator. The second connector is provided at the rotator. The first connector includes a first connector housing space in which a vehicle-body-side connector is disposed in a state where the vehicle-body-side connector is electrically connected to the first connector. When viewed from an axial direction defined along the rotation axis in a state where the stator is attached to the vehicle body, the first connector housing space is disposed not to overlap a vertical plane including the rotation axis.
    Type: Application
    Filed: September 22, 2022
    Publication date: January 19, 2023
    Applicants: FURUKAWA ELECTRIC CO., LTD., FURUKAWA AUTOMOTIVE SYSTEMS INC.
    Inventors: Shinichi HAMASAKI, Takahisa KAKUDO, Rodrigo Kendy YAMASHITA, Yoji TAJIRI