Patents by Inventor Akira Tachibana

Akira Tachibana 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: 11670436
    Abstract: Provided are an insulated wire material including: a conductor including a single core conductor or a plurality of divided conductors placed in parallel to each other or helically placed; a peripheral insulating layer with which a periphery of the conductor is coated; and a welding member provided at least one end portion of the conductor and joined, via a welded portion welded to the single core conductor or divided conductors, to at least a peripheral surface of the welded portion, a manufacturing method thereof, a coil including the insulated wire material, and electrical/electronic equipment including the coil.
    Type: Grant
    Filed: March 12, 2020
    Date of Patent: June 6, 2023
    Assignee: FURUKAWA ELECTRIC CO., LTD.
    Inventors: Akira Tachibana, Daisuke Muto, Hirofumi Oshima
  • Patent number: 11437167
    Abstract: An insulated wire includes: a copper alloy conductor; and at least one resin layer directly or indirectly coated on an outer peripheral face of the copper alloy conductor, in which the copper alloy conductor has a composition where a total content of metal components selected from Al, Be, Cd, Mg, Pb, Ni, P, Sn, and Cr is from 0.1 to 2.0 ppm and content of copper is 99.96 mass % or higher, and has a specific texture where an average orientation density in an area where ?2=0 degrees, ?1=0 degrees, and ?=from 0 degrees to 90 degrees is from 3.0 to less than 35.0, and a maximum orientation density in an area where ?2=35 degrees, ?1=from 45 degrees to 55 degrees, and ?=from 65 degrees to 80 degrees is from 1.0 to less than 30.0.
    Type: Grant
    Filed: June 23, 2020
    Date of Patent: September 6, 2022
    Assignee: ESSEX FURUKAWA MAGNET WIRE JAPAN CO., LTD.
    Inventors: Akira Tachibana, Shoichi Danjo
  • Patent number: 11387581
    Abstract: The present disclosure relates to an electric wire connection structure including one or more copper-based conductor covered electric wires having a copper-based conductor covered part and exposed part; and one or more aluminum-based conductor covered electric wires having an aluminum-based conductor covered part and exposed part. An ultrasonic joint part is provided at a conductor stacked part in which the copper-based conductor exposed part and the aluminum-based conductor exposed part are superposed. A total contacting length L which is a summed length of a part at which the copper-based conductor exposed part and the aluminum-based conductor exposed part contact and a summed length x of a contour line of a space S formed at a part at which the copper-based conductor exposed part and the aluminum-based conductor exposed part are separate in a joint interface of the ultrasonic joint part satisfy a relational expression of (x/L)×100?10% based on cross-section observation.
    Type: Grant
    Filed: December 19, 2019
    Date of Patent: July 12, 2022
    Assignees: FURUKAWA ELECTRIC CO., LTD., FURUKAWA AUTOMOTIVE SYSTEMS INC.
    Inventors: Sho Yoshida, Akira Tachibana, Kengo Mitose
  • Patent number: 11361876
    Abstract: The present disclosure relates to an integrally formed product including a metal and a fiber of biological origin disposed in dispersed state in the metal. A proportion by mass of the fiber of biological origin contained in the integrally formed product is within a range of 0.02 mass % or more and 10 mass % or less.
    Type: Grant
    Filed: September 26, 2019
    Date of Patent: June 14, 2022
    Assignee: FURUKAWA ELECTRIC CO., LTD.
    Inventors: Masayasu Kasahara, Akira Tachibana
  • Publication number: 20220165451
    Abstract: Provided is an electrical conducting wire in which eddy current loss is effectively suppressed, mechanical strength is excellent, and electrical conductivity is also excellent while aluminum strands that are not coated with insulating resin are used as strands constituting a split conductor. An electrical conducting wire, including: a split conductor composed of multiple aluminum strands arranged in parallel to each other or multiple aluminum strands twisted into a helix, wherein each of the strands contains 0.01 to 0.4 mass % of Fe, 0.3 to 0.5 mass % of Cu, 0.04 to 0.3 mass % of Mg, 0.02 to 0.3 mass % of Si, and 0.001 to 0.01 mass % of Ti and V in total, with the balance being Al and inevitable impurities; and wherein each of the strands is not coated with an insulating resin.
    Type: Application
    Filed: February 10, 2022
    Publication date: May 26, 2022
    Applicant: Essex Furukawa Magnet Wire Japan Co., Ltd.
    Inventors: Keiichi TOMIZAWA, Akira TACHIBANA, Daisuke MUTO
  • Patent number: 10998108
    Abstract: An electrical contact material (10) having: a conductive substrate (1) formed from copper or a copper alloy; a first intermediate layer (2) provided on the conductive substrate (1); a second intermediate layer (3) provided on the first intermediate layer (2); and an outermost layer (4) formed from tin or a tin alloy and provided on the second intermediate layer (3), wherein the first intermediate layer (2) is constructed as one layer of grains extending from the conductive substrate (1) side to the second intermediate layer (3) side, and wherein, in the first intermediate layer (2), the density of grain boundaries (5b) extending in a direction in which the angle formed by the grain boundary in interest and the interface between the conductive substrate and the first intermediate layer is 45° or greater, is 4 ?m/?m2 or less; a method of producing the same; and a terminal.
    Type: Grant
    Filed: November 29, 2016
    Date of Patent: May 4, 2021
    Assignees: FURUKAWA ELECTRIC CO., LTD., FURUKAWA AUTOMOTIVE SYSTEMS INC.
    Inventors: Yoshikazu Okuno, Yoshiaki Kobayashi, Tatsuya Nakatsugawa, Kengo Mitose, Akira Tachibana, Shingo Kawata
  • Patent number: 10978219
    Abstract: Provided is an assembled wire 10 having a substantially rectangular cross section, and is formed by assembling a plurality of strands 7. Each strand 7 has a conductor portion 11 and a strand insulating layer 13 covering the conductor portion 11. The strand insulating layer 13 preferably contains at least one kind of resin in which 50% weight loss in Tg-DTA occurs at from 300° C. to 500° C. The strand insulating layer 13 contains particles. The particles are particles having volume resistivity of 1×106 ?·cm or more, and, for example, inorganic substances such as silica, titania, alumina, aluminum nitride, magnesium oxide, silicon nitride, and silicon carbide; and resins such as silicone are applicable.
    Type: Grant
    Filed: May 28, 2020
    Date of Patent: April 13, 2021
    Assignee: ESSEX FURUKAWA MAGNET WIRE JAPAN CO., LTD.
    Inventors: Keiichi Tomizawa, Akira Tachibana, Keisuke Ikeda, Daisuke Muto, Hideo Fukuda
  • Publication number: 20200365294
    Abstract: Provided is an assembled wire 10 having a substantially rectangular cross section, and is formed by assembling a plurality of strands 7. Each strand 7 has a conductor portion 11 and a strand insulating layer 13 covering the conductor portion 11. The strand insulating layer 13 preferably contains at least one kind of resin in which 50% weight loss in Tg-DTA occurs at from 300° C. to 500° C. The strand insulating layer 13 contains particles. The particles are particles having volume resistivity of 1×106 ?·cm or more, and, for example, inorganic substances such as silica, titania, alumina, aluminum nitride, magnesium oxide, silicon nitride, and silicon carbide; and resins such as silicone are applicable.
    Type: Application
    Filed: May 28, 2020
    Publication date: November 19, 2020
    Applicants: FURUKAWA ELECTRIC CO., LTD., FURUKAWA MAGNET WIRE CO., LTD.
    Inventors: Keiichi TOMIZAWA, Akira TACHIBANA, Keisuke IKEDA, Daisuke MUTO, Hideo FUKUDA
  • Publication number: 20200328009
    Abstract: An insulated wire includes: a copper alloy conductor; and at least one resin layer directly or indirectly coated on an outer peripheral face of the copper alloy conductor, in which the copper alloy conductor has a composition where a total content of metal components selected from Al, Be, Cd, Mg, Pb, Ni, P, Sn, and Cr is from 0.1 to 2.0 ppm and content of copper is 99.96 mass % or higher, and has a specific texture where an average orientation density in an area where ?2=0 degrees, ?1=0 degrees, and ?=from 0 degrees to 90 degrees is from 3.0 to less than 35.0, and a maximum orientation density in an area where ?2=35 degrees, ?1=from 45 degrees to 55 degrees, and ?=from 65 degrees to 80 degrees is from 1.0 to less than 30.0.
    Type: Application
    Filed: June 23, 2020
    Publication date: October 15, 2020
    Applicants: FURUKAWA ELECTRIC CO., LTD., FURUKAWA MAGNET WIRE CO., LTD.
    Inventors: Akira TACHIBANA, Shoichi DANJO
  • Publication number: 20200211734
    Abstract: Provided are an insulated wire material including: a conductor including a single core conductor or a plurality of divided conductors placed in parallel to each other or helically placed; a peripheral insulating layer with which a periphery of the conductor is coated; and a welding member provided at at least one end portion of the conductor and joined, via a welded portion welded to the single core conductor or divided conductors, to at least a peripheral surface of the welded portion, a manufacturing method thereof, a coil including the insulated wire material, and electrical/electronic equipment including the coil.
    Type: Application
    Filed: March 12, 2020
    Publication date: July 2, 2020
    Applicant: FURUKAWA ELECTRIC CO., LTD.
    Inventors: Akira TACHIBANA, Daisuke MUTO, Hirofumi OSHIMA
  • Publication number: 20200212602
    Abstract: Provided are an insulated wire material including: a conductor including a single core conductor or a plurality of divided conductors placed in parallel to each other or helically placed; and a peripheral insulating layer with which a periphery of the conductor is coated includes a welding member at at least one end portion of the conductor via a welded portion, a manufacturing method thereof, a coil including the insulated wire material, and electrical/electronic equipment including the coil.
    Type: Application
    Filed: March 12, 2020
    Publication date: July 2, 2020
    Applicant: FURUKAWA ELECTRIC CO., LTD.
    Inventors: Akira TACHIBANA, Kenichi NAKAMURA, Hideo FUKUDA, Hirofumi OSHIMA
  • Patent number: 10697004
    Abstract: A method in which a mutant gene present in a gene pool mixedly with a large number of wild-type genes can be simply, inexpensively and sensitively detected is developed and provided. A clamping probe that is connected to a target nucleic acid molecule in two regions of first and second target nucleic acid complementary regions so that a wild-type target nucleic acid molecule and a mutant-type target nucleic acid molecule can be distinguished from each other depending on a difference in complementarity to these target nucleic acid molecules is provided.
    Type: Grant
    Filed: November 6, 2015
    Date of Patent: June 30, 2020
    Assignee: Osaka City University
    Inventors: Akira Tachibana, Toshizumi Tanabe
  • Publication number: 20200136277
    Abstract: The present disclosure relates to an electric wire connection structure including one or more copper-based conductor covered electric wires having a copper-based conductor covered part and exposed part; and one or more aluminum-based conductor covered electric wires having an aluminum-based conductor covered part and exposed part. An ultrasonic joint part is provided at a conductor stacked part in which the copper-based conductor exposed part and the aluminum-based conductor exposed part are superposed. A total contacting length L which is a summed length of a part at which the copper-based conductor exposed part and the aluminum-based conductor exposed part contact and a summed length x of a contour line of a space S formed at a part at which the copper-based conductor exposed part and the aluminum-based conductor exposed part are separate in a joint interface of the ultrasonic joint part satisfy a relational expression of (x/L)×100?10% based on cross-section observation.
    Type: Application
    Filed: December 19, 2019
    Publication date: April 30, 2020
    Applicants: FURUKAWA ELECTRIC CO., LTD., FURUKAWA AUTOMOTIVE SYSTEMS INC.
    Inventors: Sho YOSHIDA, Akira TACHIBANA, Kengo MITOSE
  • Patent number: 10128305
    Abstract: A semiconductor element is disclosed including a construction with electrode-dividing grooves, in which a dark current is smaller than in existing examples. A method of forming such grooves is also disclosed. In an embodiment, grooves, which electrically divide an electrode layer formed on the surface of a substrate, are formed with a V-shaped cross-sectional shape, groove side walls in the electrode layer, constituting the grooves, being sloping surfaces. An embodiment of the method of forming the grooves includes using a dicing blade having a blade distal end portion which is sharpened into a V-shape to cut a semiconductor wafer in which multiple patterns of semiconductor elements including an electrode layer on the surface of a substrate are formed, forming the grooves having a V-shaped cross-sectional shape which divide the electrode layer in each semiconductor element.
    Type: Grant
    Filed: May 11, 2016
    Date of Patent: November 13, 2018
    Assignee: SIEMENS HEALTHCARE GMBH
    Inventors: Sakari Kaneku, Yasuhiro Shuto, Akira Tachibana
  • Patent number: 10050277
    Abstract: Provided are an electrodeposited copper foil, a negative electrode that is for a lithium ion secondary battery, and a lithium ion secondary battery into which the electrode is incorporated. The electrodeposited copper foil exhibits good electrical conductivity and superior tensile strength, with no significant decline in tensile strength exhibited even after one hour of heating at 300° C. The negative electrode has heightened cycle properties due to the use of the electrodeposited copper foil as a current collector. Using x-ray diffraction, in the electrodeposited copper foil, in normal conditions, the diffraction intensity (I)<220> in the <220> orientation, the diffraction intensity (I)<200> in the <200> orientation, and the diffraction intensity (I)<111> in the <111> orientation, satisfy the following formula (1): I<220>/{I<220>+I<200>+I<111>}>0.13??(1).
    Type: Grant
    Filed: June 25, 2013
    Date of Patent: August 14, 2018
    Assignee: Furukawa Electric Co., Ltd.
    Inventors: Jun Shinozaki, Kimiko Fujisawa, Akira Tachibana
  • Patent number: 10033146
    Abstract: A method of manufacturing an electrical wire connecting structure in which a terminal having a tube-shaped portion and a conductor portion of a covered electrical wire are crimped at the tube-shaped portion, and the tube-shaped portion has a conductor crimping portion corresponding to the conductor portion, and a cover crimping portion corresponding to a cover portion of the covered electrical wire, the method comprising the steps of a) forming the tube-shaped portion, b) inserting the covered electrical wire into a corresponding space, c) crimping a welded portion of the conductor, and d) compressing the cover crimping portion.
    Type: Grant
    Filed: February 24, 2016
    Date of Patent: July 24, 2018
    Assignees: FURUKAWA ELECTRIC CO., LTD., FURUKAWA AUTOMOTIVE SYSTEMS INC.
    Inventors: Akira Tachibana, Kengo Mitose, Kyota Susai, Takao Tateyama, Yukihiro Kawamura, Takashi Tonoike, Masakazu Kozawa, Takuro Yamada
  • Patent number: 9899119
    Abstract: An electric wire apparatus includes an electric wire including an aluminum alloy wire rod having an outer periphery portion coated, and a crimp terminal crimped to an end portion of the electric wire, the crimp terminal having a barrel portion crimped with the aluminum alloy wire rod, the barrel portion having a one-end closed tubular shape. The aluminum alloy wire rod has a composition including 0.10 mass % to 1.00 mass % of magnesium (Mg), 0.10 mass % to 1.00 mass % of silicon (Si), 0.01 mass % to 2.50 mass % of iron (Fe), 0.000 mass % to 0.100 mass % of titanium (Ti), 0.000 mass % to 0.030 mass % of boron (B), 0.00 mass % to 1.00 mass % of copper (Cu), 0.00 mass % to 0.50 mass % of silver (Ag), 0.00 mass % to 0.50 mass % of gold (Au), 0.00 mass % to 1.00 mass % of manganese (Mn), 0.00 mass % to 1.00 mass % of chromium (Cr), 0.00 mass % to 0.50 mass % of zirconium (Zr), 0.00 mass % to 0.50 mass % of hafnium (Hf), 0.00 mass % to 0.50 mass % of vanadium (V), 0.00 mass % to 0.50 mass % of scandium (Sc), 0.
    Type: Grant
    Filed: March 20, 2017
    Date of Patent: February 20, 2018
    Assignees: FURUKAWA ELECTRIC CO., LTD., FURUKAWA AUTOMOTIVE SYSTEMS INC.
    Inventors: Sho Yoshida, Akira Tachibana, Yasushi Kihara, Shigeki Sekiya, Kengo Mitose
  • Publication number: 20170356033
    Abstract: A method in which a mutant gene present in a gene pool mixedly with a large number of wild-type genes can be simply, inexpensively and sensitively detected is developed and provided. A clamping probe that is connected to a target nucleic acid molecule in two regions of first and second target nucleic acid complementary regions so that a wild-type target nucleic acid molecule and a mutant-type target nucleic acid molecule can be distinguished from each other depending on a difference in complementarity to these target nucleic acid molecules is provided.
    Type: Application
    Filed: November 6, 2015
    Publication date: December 14, 2017
    Applicant: Osaka City University
    Inventors: Akira Tachibana, Toshizumi Tanabe
  • Patent number: 9768525
    Abstract: A terminal includes a tubular crimp portion that crimp connects with an electric wire. The tubular crimp portion is composed of a metal member. The tubular crimp portion includes a non-weld portion and a weld portion, the weld portion being formed by welding. A metal base material constituting the metal member of the non-weld portion includes a normal portion and an annealed portion.
    Type: Grant
    Filed: December 14, 2015
    Date of Patent: September 19, 2017
    Assignees: FURUKAWA ELECTRIC CO., LTD., FURUKAWA AUTOMOTIVE SYSTEMS INC.
    Inventors: Akira Tachibana, Kengo Mitose, Saburo Yagi
  • Patent number: D908738
    Type: Grant
    Filed: December 6, 2019
    Date of Patent: January 26, 2021
    Inventor: Akira Tachibana