Patents by Inventor Tomoyuki Murayama

Tomoyuki Murayama has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11854713
    Abstract: A cable includes a plurality of electric wires including a conductor and an insulating member coating a periphery of the conductor, a tape member provided over a periphery of an aggregate configured by laying the plurality of electric wires together, and an outer sheath provided over an outer periphery of the tape member. The tape member includes a mixture of a first fiber having a melting point and a second fiber having a melting point lower than the melting point of the first fiber. The first fiber has the melting point higher than an extrusion molding temperature of the outer sheath, and the second fiber has the melting point lower than the extrusion molding temperature of the outer sheath.
    Type: Grant
    Filed: June 15, 2021
    Date of Patent: December 26, 2023
    Assignee: PROTERIAL, LTD.
    Inventors: Yoshikazu Hayakawa, Tomoyuki Murayama
  • Patent number: 11846527
    Abstract: A sensor device includes a first pair of connection terminals extended from a first sensor and a second pair of connection terminals extended from a second sensor. A first negative connection terminal that is a negative connection terminal of the first pair of connection terminals and a second negative connection terminal that is a negative connection terminal of the second pair of connection terminals are electrically connected to each other.
    Type: Grant
    Filed: January 21, 2022
    Date of Patent: December 19, 2023
    Assignee: PROTERIAL, LTD.
    Inventors: Yoshikazu Hayakawa, Tomoyuki Murayama, Yuta Sugiyama, Hirotaka Eshima
  • Patent number: 11664136
    Abstract: A composite cable includes a plurality of power lines, one signal line unit, and a sheath collectively covering the plurality of power lines and the one signal line unit. The signal line unit includes a plurality of pairs of signal lines, and an inner sheath covering a first assembled article. The first assembled article is formed by arranging the signal lines to be paired at each pair of adjacent vertices of a polygon with an even number of vertices in a cross-section perpendicular to a longitudinal direction of the signal line unit and twisting all the signal lines together. A twisting direction of a second assembled article formed by twisting the plurality of power lines and the one signal line unit together is different from a twisting direction of the first assembled article.
    Type: Grant
    Filed: September 22, 2021
    Date of Patent: May 30, 2023
    Assignee: HITACHI METALS, LTD.
    Inventors: Yoshikazu Hayakawa, Tomoyuki Murayama, Hirotaka Eshima, Takahiro Futatsumori
  • Publication number: 20230095084
    Abstract: A composite cable includes a plurality of internal cables and a covering member covering peripheries of the plurality of internal cables. At least one of the plurality of internal cables includes at least one electric wire having a conductor, a first sheath covering a periphery of the at least one electric wire, a shield covering a periphery of the first sheath, and a second sheath covering a periphery of the shield.
    Type: Application
    Filed: September 26, 2022
    Publication date: March 30, 2023
    Inventors: Hirotaka Eshima, Fumihito Oka, Yoshikazu Hayakawa, Tomoyuki Murayama, Takahiro Futatsumori
  • Publication number: 20230094637
    Abstract: A composite cable is composed of plural electric power wires, a first twisted wire made by laying plural signal wires together, a second twisted wire disposed opposite the first twisted wire with the electric power wires between the first twisted wire and the second twisted wire, and a sheath formed over plural electric power wires, the first twisted wire, and the second twisted wire. The second twisted wire is made by laying plural electric wires including a grounding wire together. Each of the plural electric wires of the second twisted wire is composed of a conductor and an insulator formed over the conductor.
    Type: Application
    Filed: September 23, 2022
    Publication date: March 30, 2023
    Inventors: Tomoyuki MURAYAMA, Yoshikazu HAYAKAWA, Hirotaka ESHIMA, Takahiro FUTATSUMORI
  • Patent number: 11569003
    Abstract: A composite cable is composed of a plurality of power supply wires, a plurality of signal wires, two or more of which are configured to be connected to a common terminal member, and a sheath provided to cover the plurality of power supply wires and the plurality of signal wires together. The two or more of the plurality of signal wires being configured to be connected to the common terminal member are provided adjacent to each other.
    Type: Grant
    Filed: February 27, 2020
    Date of Patent: January 31, 2023
    Assignee: HITACHI METALS, LTD.
    Inventors: Yoshikazu Hayakawa, Tomoyuki Murayama, Hirotaka Eshima, Takahiro Futatsumori
  • Publication number: 20220146284
    Abstract: A sensor device includes a first pair of connection terminals extended from a first sensor and a second pair of connection terminals extended from a second sensor. A first negative connection terminal that is a negative connection terminal of the first pair of connection terminals and a second negative connection terminal that is a negative connection terminal of the second pair of connection terminals are electrically connected to each other.
    Type: Application
    Filed: January 21, 2022
    Publication date: May 12, 2022
    Inventors: Yoshikazu HAYAKAWA, Tomoyuki Murayama, Yuta Sugiyama, Hirotaka Eshima
  • Publication number: 20220102023
    Abstract: A composite cable includes a plurality of power lines, one signal line unit, and a sheath collectively covering the plurality of power lines and the one signal line unit. The signal line unit includes a plurality of pairs of signal lines, and an inner sheath covering a first assembled article. The first assembled article is formed by arranging the signal lines to be paired at each pair of adjacent vertices of a polygon with an even number of vertices in a cross-section perpendicular to a longitudinal direction of the signal line unit and twisting all the signal lines together. A twisting direction of a second assembled article formed by twisting the plurality of power lines and the one signal line unit together is different from a twisting direction of the first assembled article.
    Type: Application
    Filed: September 22, 2021
    Publication date: March 31, 2022
    Inventors: Yoshikazu Hayakawa, Tomoyuki Murayama, Hirotaka Eshima, Takahiro Futatsumori
  • Publication number: 20220102027
    Abstract: A composite cable includes a plurality of power lines, one signal line unit, and a sheath collectively covering the plurality of power lines and the one signal line unit. The signal line unit includes a plurality of pairs of signal lines, and an inner sheath covering a first assembled article. The first assembled article is formed by arranging the signal lines to be paired at each pair of opposing vertices of a polygon with an even number of vertices in a cross-section perpendicular to a longitudinal direction of the signal line unit and twisting all the signal lines together.
    Type: Application
    Filed: September 22, 2021
    Publication date: March 31, 2022
    Inventors: Yoshikazu HAYAKAWA, Tomoyuki MURAYAMA, Hirotaka ESHIMA, Takahiro FUTATSUMORI
  • Patent number: 11262217
    Abstract: A sensor device includes a first pair of connection terminals extended from a first sensor and a second pair of connection terminals extended from a second sensor. A first negative connection terminal that is a negative connection terminal of the first pair of connection terminals and a second negative connection terminal that is a negative connection terminal of the second pair of connection terminals are electrically connected to each other.
    Type: Grant
    Filed: April 1, 2020
    Date of Patent: March 1, 2022
    Assignee: HITACHI METALS, LTD.
    Inventors: Yoshikazu Hayakawa, Tomoyuki Murayama, Yuta Sugiyama, Hirotaka Eshima
  • Patent number: 11264148
    Abstract: A composite cable includes a pair of first electric wires, a twisted pair wire formed by twisting a pair of second electric wires having a smaller outer diameter than the first electric wires, a tape member wound into a spiral around an assembly that is formed by twisting the pair of first electric wires and the twisted pair wire together, and a sheath covering an outer periphery of the tape member. The tape member and the sheath includes an inwardly projecting part formed in a spiral along a cable longitudinal direction and formed so as to enter inward at least one of a valley part between the two first electric wires and valley parts between the first electric wires and the twisted pair wire. The inwardly projecting part has a projecting length of not less than 3% of an outer diameter of the first electric wires.
    Type: Grant
    Filed: December 25, 2015
    Date of Patent: March 1, 2022
    Assignee: HITACHI METALS, LTD.
    Inventors: Yoshikazu Hayakawa, Tomoyuki Murayama, Hirotaka Eshima, Fumihito Oka, Takahiro Futatsumori
  • Publication number: 20210313090
    Abstract: A cable includes a plurality of electric wires including a conductor and an insulating member coating a periphery of the conductor, a tape member provided over a periphery of an aggregate configured by laying the plurality of electric wires together, and an outer sheath provided over an outer periphery of the tape member. The tape member includes a mixture of a first fiber having a melting point and a second fiber having a melting point lower than the melting point of the first fiber. The first fiber has the melting point higher than an extrusion molding temperature of the outer sheath, and the second fiber has the melting point lower than the extrusion molding temperature of the outer sheath.
    Type: Application
    Filed: June 15, 2021
    Publication date: October 7, 2021
    Inventors: Yoshikazu HAYAKAWA, Tomoyuki MURAYAMA
  • Patent number: 11062819
    Abstract: A cable is composed of a plurality of electric wires, a tape member provided over a periphery of the plurality of electric wires, and an outer sheath provided over an outer periphery of the tape member. The tape member includes a mixture of a first fiber having a melting point and a second fiber having a melting point lower than the melting point of the first fiber.
    Type: Grant
    Filed: November 18, 2019
    Date of Patent: July 13, 2021
    Assignee: HITACHI METALS, LTD.
    Inventors: Yoshikazu Hayakawa, Tomoyuki Murayama
  • Publication number: 20210210251
    Abstract: A composite cable includes a pair of first electric wires, a twisted pair wire formed by twisting a pair of second electric wires having a smaller outer diameter than the first electric wires, a tape member wound into a spiral around an assembly that is formed by twisting the pair of first electric wires and the twisted pair wire together, and a sheath covering an outer periphery of the tape member. The tape member and the sheath includes an inwardly projecting part formed in a spiral along a cable longitudinal direction and formed so as to enter inward at least one of a valley part between the two first electric wires and valley parts between the first electric wires and the twisted pair wire. The inwardly projecting part has a projecting length of not less than 3% of an outer diameter of the first electric wires.
    Type: Application
    Filed: December 25, 2015
    Publication date: July 8, 2021
    Inventors: Yoshikazu HAYAKAWA, Tomoyuki MURAYAMA, Hirotaka ESHIMA, Fumihito OKA, Takahiro FUTATSUMORI
  • Patent number: 11031154
    Abstract: A composite cable includes a twisted assembly including a pair of first single core wires and first and second multicore wires that are each arranged in one or the other of regions facing each other across a center plane passing through the central axes of the pair of first single core wires, include an electric wire with a solid (non-hollowed) structure including a first or second twisted pair wire formed by twisting a pair of second or third single core wires with a smaller cross-sectional area than the first single core wire and a first or second inner sheath covering the first or second twisted pair wire so as to fill a space between the pair of second or third single core wires, and have an outer diameter that is not less than 70% and not more than 160% of the outer diameter of the first single core wire.
    Type: Grant
    Filed: November 25, 2019
    Date of Patent: June 8, 2021
    Assignee: HITACHI METALS, LTD.
    Inventors: Yoshikazu Hayakawa, Tomoyuki Murayama, Hirotaka Eshima, Takahiro Futatsumori
  • Publication number: 20200318994
    Abstract: A sensor device includes a first pair of connection terminals extended from a first sensor and a second pair of connection terminals extended from a second sensor. A first negative connection terminal that is a negative connection terminal of the first pair of connection terminals and a second negative connection terminal that is a negative connection terminal of the second pair of connection terminals are electrically connected to each other.
    Type: Application
    Filed: April 1, 2020
    Publication date: October 8, 2020
    Inventors: Yoshikazu Hayakawa, Tomoyuki Murayama, Yuta Sugiyama, Hirotaka Eshima
  • Publication number: 20200286647
    Abstract: A composite cable is composed of a plurality of power supply wires, a plurality of signal wires, two or more of which are configured to be connected to a common terminal member, and a sheath provided to cover the plurality of power supply wires and the plurality of signal wires together. The two or more of the plurality of signal wires being configured to be connected to the common terminal member are provided adjacent to each other.
    Type: Application
    Filed: February 27, 2020
    Publication date: September 10, 2020
    Inventors: Yoshikazu HAYAKAWA, Tomoyuki Murayama, Hirotaka Eshima, Takahiro Futatsumori
  • Patent number: 10741301
    Abstract: A cable includes a plurality of electric wires, a tape member spirally wound around an assembled article that is formed by bundling the plurality of electric wires, and a sheath covering the tape member. The tape member includes a plurality of entangled fibers. A plurality of linear slits are formed on the tape member so as to penetrate the tape member.
    Type: Grant
    Filed: June 17, 2019
    Date of Patent: August 11, 2020
    Assignee: HITACHI METALS, LTD.
    Inventors: Yoshikazu Hayakawa, Tomoyuki Murayama, Hirotaka Eshima
  • Publication number: 20200185128
    Abstract: A composite cable includes a twisted assembly including a pair of first single core wires and first and second multicore wires that are each arranged in one or the other of regions facing each other across a center plane passing through the central axes of the pair of first single core wires, include an electric wire with a solid (non-hollowed) structure including a first or second twisted pair wire formed by twisting a pair of second or third single core wires with a smaller cross-sectional area than the first single core wire and a first or second inner sheath covering the first or second twisted pair wire so as to fill a space between the pair of second or third single core wires, and have an outer diameter that is not less than 70% and not more than 160% of the outer diameter of the first single core wire.
    Type: Application
    Filed: November 25, 2019
    Publication date: June 11, 2020
    Inventors: Yoshikazu HAYAKAWA, Tomoyuki MURAYAMA, Hirotaka ESHIMA, Takahiro FUTATSUMORI
  • Patent number: 10679771
    Abstract: A composite harness includes a composite cable that includes a plurality of first electric wires, a multicore wire formed by covering a plurality of second electric wires having a smaller diameter than the plurality of first electric wires with one urethane-based resin inner sheath to be in contact with the first electric wires, and a jacket covering an outer periphery of the plurality of first electric wires and the multicore wire, and a molded resin provided at an end portion of the composite cable so as to cover an outer surface of the inner sheath at an end portion of the multicore wire. The outer surface of the inner sheath is irregularity-formed at least at a portion in contact with the plurality of first electric wires and a portion covered with the molded resin.
    Type: Grant
    Filed: February 28, 2019
    Date of Patent: June 9, 2020
    Assignee: HITACHI METALS, LTD.
    Inventors: Yoshikazu Hayakawa, Tomoyuki Murayama, Hirotaka Eshima