Patents by Inventor Toshiharu Shimizu

Toshiharu Shimizu 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).

  • Publication number: 20230411044
    Abstract: There are provided a duplex twisted shielded cable and a wire harness, the duplex twisted shielded cable including: two insulated wires that are twisted together, each having a conductor and an insulator covering the conductor; a film wound spirally on the two insulated wires such that parts of the film overlap each other; a metal foil shield wound spirally on the film such that parts of the metal foil shield overlap each other; a metal braid provided on an outer periphery of the metal foil shield; and a sheath provided on an outer periphery of the metal braid. The film and the metal foil shield are provided as a separate member.
    Type: Application
    Filed: May 15, 2023
    Publication date: December 21, 2023
    Inventors: Toshiharu Shimizu, Takeyuki Omura
  • Publication number: 20230411043
    Abstract: There are provided a duplex twisted shielded cable and wire harness, the duplex twisted shielded cable including; two insulated wires that are twisted together, each having a conductor and an insulator covering the conductor; a metal foil shield provided around the two insulated wires; a metal braid provided on an outer periphery of the metal foil shield; and a sheath provided on an outer periphery of the metal braid. The metal foil shield includes a PET film layer and a metal layer. The PET film layer has a thickness of 20 ?m or less, an ellipticity of the PET film layer is set to 0.75 or more and 0.90 or less, and the metal foil shield is longitudinally attached to the two insulated wires.
    Type: Application
    Filed: May 15, 2023
    Publication date: December 21, 2023
    Inventors: Taketo Kumada, Toshiharu Shimizu
  • Patent number: 11508497
    Abstract: A communication cable includes two-core communication wires, a drain wire, and a metal foil collectively covering the two-core communication wires and the drain wire. The two-core communication wires are twisted, and the metal foil is wound around the two-core communication wires with an adhesion strength of 1.21 MPa or more. Preferably, the two-core communication wires are twisted with a twist pitch of 20 mm or more and 60 mm or less. The communication cable further may include a restraint formed of a resin coating extruded around the metal foil or a resin film laterally wound around the metal foil.
    Type: Grant
    Filed: October 23, 2020
    Date of Patent: November 22, 2022
    Assignee: YAZAKI CORPORATION
    Inventor: Toshiharu Shimizu
  • Patent number: 11410793
    Abstract: A bending-resistant communication cable includes a parallel two-core shielded wire that includes a drain wire in a gap between two-core communication wires and is formed by collectively covering the two-core communication wires and the drain wire by an external conductor. Each of the drain wires in a plurality of parallel two-core shielded wire is arranged to face inside of the bending-resistant communication cable. Further, a twist pitch of the plurality of two-core shielded wires is 20 mm or more and less than 100 mm.
    Type: Grant
    Filed: May 19, 2020
    Date of Patent: August 9, 2022
    Assignee: YAZAKI CORPORATION
    Inventors: Toshiharu Shimizu, Hiroki Kondo
  • Publication number: 20210343451
    Abstract: The communication cable includes a two-core communication line including two insulated electric wires each having a conductor and an insulator covering the conductor, a drain wire and a metal foil. The two-core communication line and the drain wire are collectively covered with the metal foil. The two insulated electric wires are twisted together. The insulator has a foaming ratio being equal to or smaller than 45%. The insulator may have the foaming ratio being equal to or greater than 28%. A wire harness may include the communication cable.
    Type: Application
    Filed: April 29, 2021
    Publication date: November 4, 2021
    Applicant: Yazaki Corporation
    Inventor: Toshiharu Shimizu
  • Patent number: 11158439
    Abstract: A routing structure of a two-core parallel shielded electric wire includes: two insulated electric wires that are arranged in parallel; and a shield layer that is attached around the two insulated electric wires and extends in a longitudinal direction of the two insulated electric wires. In the routing structure, the two-core parallel shielded electric wire is rerouted by bent twisting the two-core parallel shielded electric wire in a short axis direction at a route change point along a long axis direction of the two-core parallel shielded electric wire, and the number of bent twisted points in the short axis direction is 1.43 or less per meter.
    Type: Grant
    Filed: July 9, 2019
    Date of Patent: October 26, 2021
    Assignee: YAZAKI CORPORATION
    Inventors: Toshiharu Shimizu, Hiroki Kondo
  • Publication number: 20210125747
    Abstract: A communication cable includes two-core communication wires, a drain wire, and a metal foil collectively covering the two-core communication wires and the drain wire. The two-core communication wires are twisted, and the metal foil is wound around the two-core communication wires with an adhesion strength of 1.21 MPa or more. Preferably, the two-core communication wires are twisted with a twist pitch of 20 mm or more and 60 mm or less. The communication cable further may include a restraint formed of a resin coating extruded around the metal foil or a resin film laterally wound around the metal foil.
    Type: Application
    Filed: October 23, 2020
    Publication date: April 29, 2021
    Inventor: Toshiharu Shimizu
  • Patent number: 10910783
    Abstract: An inner conductor of a coaxial cable is electrically connected to a circuit body of a circuit board by means of solder. An outer conductor is electrically connected to a ground body by means of the solder. The inner conductor has a connecting portion connected to the circuit body and a non-exposed portion inside a sheath. A thickness of the connecting portion is equal to or less than 35% of a thickness of the non-exposed portion, and the cross-sectional area of the connecting portion is the same as the cross-sectional area of the non-exposed portion.
    Type: Grant
    Filed: April 1, 2020
    Date of Patent: February 2, 2021
    Assignee: YAZAKI CORPORATION
    Inventors: Mizuki Shirai, Toshiharu Shimizu, Hiroki Kondo
  • Publication number: 20200373036
    Abstract: A bending-resistant communication cable includes a parallel two-core shielded wire that includes a drain wire in a gap between two-core communication wires and is formed by collectively covering the two-core communication wires and the drain wire by an external conductor. Each of the drain wires in a plurality of parallel two-core shielded wire is arranged to face inside of the bending-resistant communication cable. Further, a twist pitch of the plurality of two-core shielded wires is 20 mm or more and less than 100 mm.
    Type: Application
    Filed: May 19, 2020
    Publication date: November 26, 2020
    Inventors: Toshiharu Shimizu, Hiroki Kondo
  • Publication number: 20200343678
    Abstract: An inner conductor of a coaxial cable is electrically connected to a circuit body of a circuit board by means of solder. An outer conductor is electrically connected to a ground body by means of the solder. The inner conductor has a connecting portion connected to the circuit body and a non-exposed portion inside a sheath. A thickness of the connecting portion is equal to or less than 35% of a thickness of the non-exposed portion, and the cross-sectional area of the connecting portion is the same as the cross-sectional area of the non-exposed portion.
    Type: Application
    Filed: April 1, 2020
    Publication date: October 29, 2020
    Inventors: Mizuki Shirai, Toshiharu Shimizu, Hiroki Kondo
  • Publication number: 20200021000
    Abstract: A routing structure of a two-core parallel shielded electric wire includes: two insulated electric wires that are arranged in parallel; and a shield layer that is attached around the two insulated electric wires and extends in a longitudinal direction of the two insulated electric wires. In the routing structure, the two-core parallel shielded electric wire is rerouted by bent twisting the two-core parallel shielded electric wire in a short axis direction at a route change point along a long axis direction of the two-core parallel shielded electric wire, and the number of bent twisted points in the short axis direction is 1.43 or less per meter.
    Type: Application
    Filed: July 9, 2019
    Publication date: January 16, 2020
    Inventors: Toshiharu Shimizu, Hiroki Kondo
  • Patent number: 9466406
    Abstract: A communication cable is provided which can suppress the shielding performance thereof. A communication cable 1 includes one or a plurality of conductors 10, an insulator 20 placed on the conductor 10 to cover it, a shielding layer 30 which is formed on an outer circumference of the insulator 20, an insulating sheath 40 which covers the shielding layer 30 and a biaxially oriented film layer 50 which is provided between the insulator 20 and the sheath 40 so as to cover the outer circumference of the insulator 20.
    Type: Grant
    Filed: April 4, 2012
    Date of Patent: October 11, 2016
    Assignee: YAZAKI CORPORATION
    Inventors: Toshiharu Shimizu, Taketo Kumada
  • Publication number: 20140027149
    Abstract: A communication cable is provided which can suppress the shielding performance thereof. A communication cable 1 includes one or a plurality of conductors 10, an insulator 20 placed on the conductor 10 to cover it, a shielding layer 30 which is formed on an outer circumference of the insulator 20, an insulating sheath 40 which covers the shielding layer 30 and a biaxially oriented film layer 50 which is provided between the insulator 20 and the sheath 40 so as to cover the outer circumference of the insulator 20.
    Type: Application
    Filed: April 4, 2012
    Publication date: January 30, 2014
    Applicant: YAZAKI CORPORATION
    Inventors: Toshiharu Shimizu, Taketo Kumada
  • Patent number: 8574717
    Abstract: Disclosed is a rubber laminate containing an unvulcanized fluororubber composition comprising: (A) fluororubber comprising a terpolymer containing 50 to 60 mol % of a constitutional unit derived from vinylidene fluoride, 20 to 30 mol % of a constitutional unit derived from tetrafluoroethylene, and 10 to 30 mol % of a constitutional unit derived from hexafluoropropene; (B) an oxide and/or hydroxide of a divalent metal; (C) a polyhydroxy aromatic compound; (D) a 2-substituted-4,6-dithiol-s-triazine derivative; (E1) a quaternary phosphonium salt or a tetraalkyl ammonium salt; (E2) 1,8-diazabicyclo[5.4.0]undecene-7 (salt); and (E3) a 5-substituted-1,5-diazabicyclo[4.3.0]-5-nonene (salt). In this rubber laminate, the fluororubber layer and the NBR layer are firmly vulcanization-bonded to each other without impairing various excellent characteristics of the fluororubber constituting the rubber layer.
    Type: Grant
    Filed: June 18, 2009
    Date of Patent: November 5, 2013
    Assignee: Unimatec Co., Ltd.
    Inventors: Toshiharu Shimizu, Akihiro Naraki
  • Publication number: 20130036761
    Abstract: A damper structure is configured to open and close evaporator-side communication paths and the condenser-side communication paths respectively formed between adsorbing/desorbing devices and an evaporator and a condenser in an adsorption type refrigerator. There are spherical dampers in the communication paths respectively rollably placed therein. A ring-shape seal member having an inner circumference that can be sealed by the spherical damper is provided on a tilting lower end side of each of the communication paths in a path formation direction. A stopper for preventing the spherical damper from falling out of the communication path is provided on a tilting upper end side of each of the communication paths in the path formation direction.
    Type: Application
    Filed: March 6, 2012
    Publication date: February 14, 2013
    Applicant: Union Industry Co., Ltd.
    Inventors: Yasuo Yonezawa, Shingo Sawai, Takashi Murakami, Norimichi Murai, Toshiharu Shimizu
  • Publication number: 20130031918
    Abstract: A gas extraction device installed in a refrigerator removes uncondensed gases that exist in the refrigerator. The gas extraction device includes a gas extraction tank used to circulate a refrigerant put in an evaporator, a circulation pipe for circulation between the gas extraction tank and the evaporator, a gas extraction pump which feeds the refrigerant in the evaporator to the gas extraction tank, a shutoff valve configured to shut off a flow of the refrigerant from the gas extraction tank to the evaporator, a gas extractor which extracts the uncondensed gas in the refrigerator into the gas extraction tank, and an auxiliary tank which receives an inflow of the refrigerant filling up the gas extraction tank, and overflowing therefrom.
    Type: Application
    Filed: March 6, 2012
    Publication date: February 7, 2013
    Applicant: UNION INDUSTRY CO., LTD.
    Inventors: Yasuo Yonezawa, Shingo Sawai, Takashi Murakami, Norimichi Murai, Toshiharu Shimizu
  • Patent number: 8287981
    Abstract: Provided is a diaphragm that can be securely and firmly fixed to a predetermined fixing position without deteriorating the function of a film part. The diaphragm is provided with a film part (1a) that is elastically deformable by a predetermined pressure, a thick part (1b) that is disposed at a rim portion of the film part (1a) and has a thickness greater than the film part (1a), and a protection part (1d) that is disposed between the film part (1a) and the thick part (1b) in contact with the film part (1a) and is elastically deformable along with elastic deformation of the film part (1a) to protect the film part (1a).
    Type: Grant
    Filed: March 13, 2009
    Date of Patent: October 16, 2012
    Assignee: Tacmina Corporation
    Inventors: Toshiharu Shimizu, Shigehisa Kinugawa, Shinichi Sugahara
  • Publication number: 20110105668
    Abstract: Disclosed is a rubber laminate containing an unvulcanized fluororubber composition comprising: (A) fluororubber comprising a terpolymer containing 50 to 60 mol % of a constitutional unit derived from vinylidene fluoride, 20 to 30 mol % of a constitutional unit derived from tetrafluoroethylene, and 10 to 30 mol % of a constitutional unit derived from hexafluoropropene; (B) an oxide and/or hydroxide of a divalent metal; (C) a polyhydroxy aromatic compound; (D) a 2-substituted-4,6-dithiol-s-triazine derivative; (E1) a quaternary phosphonium salt or a tetraalkyl ammonium salt; (E2) 1,8-diazabicyclo[5.4.0]undecene-7 (salt); and (E3) a 5-substituted-1,5-diazabicyclo[4.3.0]-5-nonene (salt). In this rubber laminate, the fluororubber layer and the NBR layer are firmly vulcanization-bonded to each other without impairing various excellent characteristics of the fluororubber constituting the rubber layer.
    Type: Application
    Filed: June 18, 2009
    Publication date: May 5, 2011
    Applicant: UNIMATEC CO., LTD.
    Inventors: Toshiharu Shimizu, Akihiro Naraki
  • Publication number: 20110020588
    Abstract: Provided is a diaphragm that can be securely and firmly fixed to a predetermined fixing position without deteriorating the function of a film part. The diaphragm is provided with a film part (1a) that is elastically deformable by a predetermined pressure, a thick part (1b) that is disposed at a rim portion of the film part (1a) and has a thickness greater than the film part (1a), and a protection part (1d) that is disposed between the film part (1a) and the thick part (1b) in contact with the film part (1a) and is elastically deformable along with elastic deformation of the film part (1a) to protect the film part (1a).
    Type: Application
    Filed: March 13, 2009
    Publication date: January 27, 2011
    Applicant: TACMINA CORPORATION
    Inventors: Toshiharu Shimizu, Shigehisa Kinugawa, Shinichi Sugahara
  • Publication number: 20100317815
    Abstract: A fluoroelastomer is produced by the polymerization reaction of a fluorinated olefin using a ?H perfluorocarboxylic acid represented by the general formula: H(CF2)nCOOM (wherein M is hydrogen atom, alkali metal, or ammonium group; and n is 6, 7, or 8) or a salt thereof, as an emulsifier. The fluoroelastomer produced by the method of the present invention has a low Mooney viscosity ML1+10(121° C.) and thereby has an improved fluidity, which is essential for injection molding materials, as a result of the polymerization reaction of a fluorinated olefin using a ?H perfluorocarboxylic acid (salt) as an emulsifier. Accordingly, the productivity in injection molding can be improved. Moreover, there is neither remarkable decrease in the polymerization rate of the polymerization reaction nor deterioration of the physical properties of the vulcanizate, such as tensile strength, compression set characteristics, and hot tear resistance.
    Type: Application
    Filed: March 3, 2008
    Publication date: December 16, 2010
    Applicant: UNIMATEC CO., LTD.
    Inventors: Mitsuru Maeda, Toshiharu Shimizu, Takashi Enokida