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).

  • Publication number: 20170194066
    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: Application
    Filed: March 20, 2017
    Publication date: July 6, 2017
    Inventors: Sho Yoshida, Akira Tachibana, Yasushi Kihara, Shigeki Sekiya, Kengo Mitose
  • Publication number: 20170076834
    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: Application
    Filed: November 29, 2016
    Publication date: March 16, 2017
    Applicants: FURUKAWA ELECTRIC CO., LTD., FURUKAWA AUTOMOTIVE SYSTEMS INC.
    Inventors: Yoshikazu OKUNO, Yoshiaki KOBAYASHI, Tatsuya NAKATSUGAWA, Kengo MITOSE, Akira TACHIBANA, Shingo KAWATA
  • Patent number: 9593331
    Abstract: Provided are an improved double-stranded nucleic acid molecule involved in gene expression control mediated by a gene silencing mechanism, a method of producing the molecule, and a pharmaceutical composition comprising the double-stranded nucleic acid molecule. The double-stranded nucleic acid molecule for gene expression control comprises an antisense strand having a length of 18 to 28 nucleotides and a sense strand including a complementary moiety composed of a sequence sufficiently complementary to the antisense strand and a protruding single-stranded 5?-end moiety having a length of 2 to 100 nucleotides. The sense strand and the antisense strand form base pairs via the complementary moiety. The method produces such a double-stranded nucleic acid molecule, and the pharmaceutical composition contains such a double-stranded nucleic acid molecule as an active ingredient.
    Type: Grant
    Filed: November 1, 2012
    Date of Patent: March 14, 2017
    Assignee: Osaka City University
    Inventors: Akira Tachibana, Toshizumi Tanabe
  • Patent number: 9564691
    Abstract: A method for manufacturing a crimp terminal having a crimp portion that allows crimp connection to a conductor part of a coated wire includes forming a tubular body by bringing together side edges of a plate material made of metal composed of a copper alloy having a copper content ratio of greater than or equal to 70%, irradiating a periphery of the sides edges, which are brought together, with laser light from a laser irradiation unit to weld the side edges which are brought together, and setting a power density of the laser light and a sweep rate of the laser light in such a manner that a weld bead formed at the side edge portion after the welding has a width of 80 ?m to 390 ?m.
    Type: Grant
    Filed: August 21, 2015
    Date of Patent: February 7, 2017
    Assignees: FURUKAWA AUTOMOTIVE SYSTEMS INC., FURUKAWA ELECTRIC CO., LTD.
    Inventors: Saburo Yagi, Takashi Shigematsu, Masaya Satou, Shinya Kojima, Akira Tachibana
  • Patent number: 9531088
    Abstract: A barrel portion which allows the pressure-bonding connection of an aluminum core wire exposed on a distal end of an insulated wire covered with an insulating cover is formed into a cylindrical shape by bending barrel portion corresponding portions of a terminal base material in a terminal developed state about a terminal axis. In abutting end portions where the barrel portion corresponding portions abut each other, a welded part which welds the end portions is formed along a long length direction of the insulated wire. The welded part is formed on an upper surface concave portion and a projecting portion where an amount of plastic deformation of a conductor pressure-bonding section generated along with the pressure-bonding of the conductor pressure-bonding section becomes larger compared to other portions in a circumferential direction of the conductor pressure-bonding section.
    Type: Grant
    Filed: July 23, 2015
    Date of Patent: December 27, 2016
    Assignees: Furukawa Electric Co., Ltd., Furukawa Automotive Systems, Inc.
    Inventors: Yasushi Kihara, Akira Tachibana, Saburo Yagi, Yukihiro Kawamura, Takashi Tonoike
  • Publication number: 20160359244
    Abstract: A terminal and connection structural body that can restrain galvanic corrosion occurring between a core wire of a covered electrical wire and a terminal formed of different types of metal, and that can ensure conductive function. The terminal includes a box part as a connection part connected to another terminal and a wire barrel part as a crimping part crimp-connected to a covered electrical wire. All of a non-contact part, including an end surface as a cut surface upon blanking a metal member, is covered with a resin covered part, where the non-contact part is other than a contact part with another terminal, a non-covered part, and a contact part with an end part as an exposed part of a core wire of a covered electrical wire, a non-covered part.
    Type: Application
    Filed: September 12, 2014
    Publication date: December 8, 2016
    Applicants: FURUKAWA ELECTRIC CO., LTD., FURUKAWA AUTOMOTIVE SYSTEMS INC.
    Inventor: Akira TACHIBANA
  • Patent number: 9484642
    Abstract: A terminal includes a connector portion, a tubular crimp portion that crimps/joins with a wire, and a transition portion joining the two portions. The tubular crimp portion is composed of a metal member including a base material of copper or copper alloy with 0.20-1.40 mm thickness and a coating layer of tin, tin alloy, nickel, nickel alloy, silver or silver alloy with 0.2-3.0 ?m thickness formed on the base material. The tubular crimp portion has a weld portion formed by butt-welding and having, in its cross-section perpendicular to a terminal longitudinal direction, a phase existing therein of tin, tin alloy, nickel, nickel alloy, silver or silver alloy greater than 0.01 ?m2. The tubular crimp portion is a closed tubular body with one end opposite to a wire-insertion-opening being closed.
    Type: Grant
    Filed: August 20, 2015
    Date of Patent: November 1, 2016
    Assignees: FURUKAWA ELECTRIC CO., LTD., FURUKAWA AUTOMOTIVE SYSTEMS INC.
    Inventors: Yoshikazu Okuno, Akira Tachibana, Kengo Mitose
  • Patent number: 9444212
    Abstract: In an electrical wire connecting structure and a method of manufacturing the electrical wire connecting structure, a terminal having a tube-shaped portion of 2.0 mm in inner diameter is prepared for an electrical wire having a conductor cross-sectional area of 0.72 to 1.37 mm2, the electrical wire 13 is inserted into an electrical wire insertion port of the tube-shaped portion of the electrical wire, and the tube-shaped portion and the core wire portion of the electrical wire are compressed to be crimp-connected to each other. Furthermore, a terminal having a tube-shaped portion of 3.0 mm in inner diameter is prepared for an electrical wire having a conductor cross-sectional area of 1.22 to 2.65 mm2, the electrical wire is inserted into the electrical wire insertion port of the tube-shaped portion 25 of the electrical wire, and the tube-shaped portion and the core wire portion of the electrical wire are compressed to be crimp-connected to each other.
    Type: Grant
    Filed: September 4, 2014
    Date of Patent: September 13, 2016
    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
  • Publication number: 20160254313
    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: Application
    Filed: May 11, 2016
    Publication date: September 1, 2016
    Applicant: Siemens Aktiengesellschaft
    Inventors: Sakari KANEKU, Yasuhiro SHUTO, Akira TACHIBANA
  • Publication number: 20160222386
    Abstract: The purpose of the present invention is to develop and provide a nucleic acid molecule that can specifically and efficiently inhibit the activity of a target RNAi molecule and can be produced safely at a low cost. Provided is a nucleic acid molecule for inhibiting the activity of a target RNAi molecule. The nucleic acid molecule comprises a single-stranded nucleic acid moiety that contains one unmodified DNA region composed of a nucleotide sequence completely or sufficiently complementary to a nucleotide sequence of a functional strand having the activity in the target RNAi molecule and a double-stranded nucleic acid moiety to be linked to at least one of the 5?-end and the 3?-end of the single-stranded nucleic acid moiety.
    Type: Application
    Filed: April 22, 2016
    Publication date: August 4, 2016
    Applicant: Osaka City University
    Inventors: Akira Tachibana, Toshizumi Tanabe
  • Patent number: 9394588
    Abstract: A terminal includes a connector portion electrically connectable to an external terminal, a tubular crimp portion formed integrally or separate from the connector portion and crimps with a wire, and a transition portion coupling the two. The tubular crimp portion of a copper or copper alloy metal base material or a metal member having the same is a tubular member closed on transition portion side and reduces in diameter towards the transition portion side such that a conductor-end portion of the electric wire is un-exposed. The tubular crimp portion has a belt-shaped weld portion along a longitudinal direction of the tubular crimp portion. A circumferential direction of the tubular crimp portion matches the RD-direction of the base material. A sum of area ratios R1, R2 and R3 in a rolling plane of the base material, of Cube-, RDW-, and Goss-oriented crystal grains, respectively, is greater than or equal to 15%.
    Type: Grant
    Filed: August 20, 2015
    Date of Patent: July 19, 2016
    Assignees: FURUKAWA ELECTRIC CO., LTD., FURUKAWA AUTOMOTIVE SYSTEMS INC.
    Inventors: Ryosuke Matsuo, Akira Tachibana, Kengo Mitose
  • Patent number: 9385439
    Abstract: A metal member includes a base material composed of one of copper and a copper alloy, a white metal layer provided on the base material at a part or an entirety thereof, and an oil film provided on the white metal layer. The white metal layer has a thickness of 0.01 ?m to 0.80 ?m. A surface of the white metal layer has an arithmetic mean roughness of 0.6 ?m to 1.2 ?m. The oil film has an electric double-layer capacitance of 1.5 ?F/cm2 to 7.0 ?F/cm2.
    Type: Grant
    Filed: August 18, 2015
    Date of Patent: July 5, 2016
    Assignees: FURUKAWA ELECTRIC CO., LTD., FURUKAWA AUTOMOTIVE SYSTEMS INC.
    Inventors: Akira Tachibana, Kengo Mitose, Chikanobu Ikuta
  • Publication number: 20160172811
    Abstract: In an electrical wire connecting structure and a method of manufacturing the electrical wire connecting structure, a terminal having a tube-shaped portion of 2.0 mm in inner diameter is prepared for an electrical wire having a conductor cross-sectional area of 0.72 to 1.37 mm2, the electrical wire 13 is inserted into an electrical wire insertion port of the tube-shaped portion of the electrical wire, and the tube-shaped portion and the core wire portion of the electrical wire are compressed to be crimp-connected to each other. Furthermore, a terminal having a tube-shaped portion of 3.0 mm in inner diameter is prepared for an electrical wire having a conductor cross-sectional area of 1.22 to 2.65 mm2, the electrical wire is inserted into the electrical wire insertion port of the tube-shaped portion 25 of the electrical wire, and the tube-shaped portion and the core wire portion of the electrical wire are compressed to be crimp-connected to each other.
    Type: Application
    Filed: February 24, 2016
    Publication date: June 16, 2016
    Applicants: 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
  • Publication number: 20160099507
    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: Application
    Filed: December 14, 2015
    Publication date: April 7, 2016
    Inventors: Akira TACHIBANA, Kengo MITOSE, Saburo YAGI
  • Patent number: 9306356
    Abstract: In an electrical wire connecting structure and a method of manufacturing the electrical wire connecting structure, a terminal having a tube-shaped portion of 2.0 mm in inner diameter is prepared for an electrical wire having a conductor cross-sectional area of 0.72 to 1.37 mm2, the electrical wire 13 is inserted into an electrical wire insertion port of the tube-shaped portion of the electrical wire, and the tube-shaped portion and the core wire portion of the electrical wire are compressed to be crimp-connected to each other. Furthermore, a terminal having a tube-shaped portion of 3.0 mm in inner diameter is prepared for an electrical wire having a conductor cross-sectional area of 1.22 to 2.65 mm2, the electrical wire is inserted into the electrical wire insertion port of the tube-shaped portion 25 of the electrical wire, and the tube-shaped portion and the core wire portion of the electrical wire are compressed to be crimp-connected to each other.
    Type: Grant
    Filed: September 4, 2014
    Date of Patent: April 5, 2016
    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: 9246292
    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: May 29, 2014
    Date of Patent: January 26, 2016
    Assignees: FURUKAWA ELECTRIC CO., LTD., FURUAWA AUTOMOTIVE SYSTEMS INC.
    Inventors: Akira Tachibana, Kengo Mitose, Saburo Yagi
  • Publication number: 20160013493
    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: Application
    Filed: June 25, 2013
    Publication date: January 14, 2016
    Inventors: Jun SHINOZAKI, Kimiko FUJISAWA, Akira TACHIBANA
  • Publication number: 20150364837
    Abstract: A method for manufacturing a crimp terminal having a crimp portion that allows crimp connection to a conductor part of a coated wire includes forming a tubular body by bringing together side edges of a plate material made of metal composed of a copper alloy having a copper content ratio of greater than or equal to 70%, irradiating a periphery of the sides edges, which are brought together, with laser light from a laser irradiation unit to weld the side edges which are brought together, and setting a power density of the laser light and a sweep rate of the laser light in such a manner that a weld bead formed at the side edge portion after the welding has a width of 80 ?m to 390 ?m.
    Type: Application
    Filed: August 21, 2015
    Publication date: December 17, 2015
    Inventors: Saburo YAGI, Takashi SHIGEMATSU, Masaya SATOU, Shinya KOJIMA, Akira TACHIBANA
  • Publication number: 20150364835
    Abstract: In a method of manufacturing a connection structural body where an insulated wire and a crimp terminal are connected by crimping to each other by the crimping section, the crimping section is configured to have a hollow cross-sectional shape, and is formed by arranging a conductor crimping section which crimps a conductor tip and a cover crimping section which crimps a cover tip in this order from a distal end side to a proximal end side in a long length direction, a portion on the distal end side of the crimping section is sealed, and the crimping of the conductor crimping section is started prior to the crimping of the cover crimping section at the time of connecting the crimping section to the wire tip by crimping.
    Type: Application
    Filed: August 21, 2015
    Publication date: December 17, 2015
    Applicants: FURUKAWA ELECTRIC CO., LTD., FURUKAWA AUTOMOTIVE SYSTEMS, INC.
    Inventors: Takashi TONOIKE, Yukihiro KAWAMURA, Masakazu KOZAWA, Takurou YAMADA, Kyota SASAI, Akira TACHIBANA
  • Publication number: 20150357723
    Abstract: A metal member includes a base material composed of one of copper and a copper alloy, a white metal layer provided on the base material at a part or an entirety thereof, and an oil film provided on the white metal layer. The white metal layer has a thickness of 0.01 ?m to 0.80 ?m. A surface of the white metal layer has an arithmetic mean roughness of 0.6 ?m to 1.2 ?m. The oil film has an electric double-layer capacitance of 1.5 ?F/cm2 to 7.0 ?F/cm2.
    Type: Application
    Filed: August 18, 2015
    Publication date: December 10, 2015
    Inventors: Akira TACHIBANA, Kengo MITOSE, Chikanobu IKUTA