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).
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Patent number: 11854713Abstract: 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: GrantFiled: June 15, 2021Date of Patent: December 26, 2023Assignee: PROTERIAL, LTD.Inventors: Yoshikazu Hayakawa, Tomoyuki Murayama
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Patent number: 11846527Abstract: 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: GrantFiled: January 21, 2022Date of Patent: December 19, 2023Assignee: PROTERIAL, LTD.Inventors: Yoshikazu Hayakawa, Tomoyuki Murayama, Yuta Sugiyama, Hirotaka Eshima
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Patent number: 11664136Abstract: 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: GrantFiled: September 22, 2021Date of Patent: May 30, 2023Assignee: HITACHI METALS, LTD.Inventors: Yoshikazu Hayakawa, Tomoyuki Murayama, Hirotaka Eshima, Takahiro Futatsumori
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Publication number: 20230095084Abstract: 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: ApplicationFiled: September 26, 2022Publication date: March 30, 2023Inventors: Hirotaka Eshima, Fumihito Oka, Yoshikazu Hayakawa, Tomoyuki Murayama, Takahiro Futatsumori
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Publication number: 20230094637Abstract: 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: ApplicationFiled: September 23, 2022Publication date: March 30, 2023Inventors: Tomoyuki MURAYAMA, Yoshikazu HAYAKAWA, Hirotaka ESHIMA, Takahiro FUTATSUMORI
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Patent number: 11569003Abstract: 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: GrantFiled: February 27, 2020Date of Patent: January 31, 2023Assignee: HITACHI METALS, LTD.Inventors: Yoshikazu Hayakawa, Tomoyuki Murayama, Hirotaka Eshima, Takahiro Futatsumori
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Publication number: 20220146284Abstract: 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: ApplicationFiled: January 21, 2022Publication date: May 12, 2022Inventors: Yoshikazu HAYAKAWA, Tomoyuki Murayama, Yuta Sugiyama, Hirotaka Eshima
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Publication number: 20220102023Abstract: 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: ApplicationFiled: September 22, 2021Publication date: March 31, 2022Inventors: Yoshikazu Hayakawa, Tomoyuki Murayama, Hirotaka Eshima, Takahiro Futatsumori
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Publication number: 20220102027Abstract: 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: ApplicationFiled: September 22, 2021Publication date: March 31, 2022Inventors: Yoshikazu HAYAKAWA, Tomoyuki MURAYAMA, Hirotaka ESHIMA, Takahiro FUTATSUMORI
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Patent number: 11262217Abstract: 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: GrantFiled: April 1, 2020Date of Patent: March 1, 2022Assignee: HITACHI METALS, LTD.Inventors: Yoshikazu Hayakawa, Tomoyuki Murayama, Yuta Sugiyama, Hirotaka Eshima
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Patent number: 11264148Abstract: 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: GrantFiled: December 25, 2015Date of Patent: March 1, 2022Assignee: HITACHI METALS, LTD.Inventors: Yoshikazu Hayakawa, Tomoyuki Murayama, Hirotaka Eshima, Fumihito Oka, Takahiro Futatsumori
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Publication number: 20210313090Abstract: 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: ApplicationFiled: June 15, 2021Publication date: October 7, 2021Inventors: Yoshikazu HAYAKAWA, Tomoyuki MURAYAMA
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Patent number: 11062819Abstract: 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: GrantFiled: November 18, 2019Date of Patent: July 13, 2021Assignee: HITACHI METALS, LTD.Inventors: Yoshikazu Hayakawa, Tomoyuki Murayama
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Publication number: 20210210251Abstract: 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: ApplicationFiled: December 25, 2015Publication date: July 8, 2021Inventors: Yoshikazu HAYAKAWA, Tomoyuki MURAYAMA, Hirotaka ESHIMA, Fumihito OKA, Takahiro FUTATSUMORI
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Patent number: 11031154Abstract: 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: GrantFiled: November 25, 2019Date of Patent: June 8, 2021Assignee: HITACHI METALS, LTD.Inventors: Yoshikazu Hayakawa, Tomoyuki Murayama, Hirotaka Eshima, Takahiro Futatsumori
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Publication number: 20200318994Abstract: 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: ApplicationFiled: April 1, 2020Publication date: October 8, 2020Inventors: Yoshikazu Hayakawa, Tomoyuki Murayama, Yuta Sugiyama, Hirotaka Eshima
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Publication number: 20200286647Abstract: 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: ApplicationFiled: February 27, 2020Publication date: September 10, 2020Inventors: Yoshikazu HAYAKAWA, Tomoyuki Murayama, Hirotaka Eshima, Takahiro Futatsumori
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Patent number: 10741301Abstract: 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: GrantFiled: June 17, 2019Date of Patent: August 11, 2020Assignee: HITACHI METALS, LTD.Inventors: Yoshikazu Hayakawa, Tomoyuki Murayama, Hirotaka Eshima
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Publication number: 20200185128Abstract: 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: ApplicationFiled: November 25, 2019Publication date: June 11, 2020Inventors: Yoshikazu HAYAKAWA, Tomoyuki MURAYAMA, Hirotaka ESHIMA, Takahiro FUTATSUMORI
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Patent number: 10679771Abstract: 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: GrantFiled: February 28, 2019Date of Patent: June 9, 2020Assignee: HITACHI METALS, LTD.Inventors: Yoshikazu Hayakawa, Tomoyuki Murayama, Hirotaka Eshima