Patents by Inventor Masakazu KOZAWA

Masakazu KOZAWA 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: 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: 9968017
    Abstract: An electromagnetic shielding tube has a resin inner layer as the innermost layer, a resin outer layer as the outermost layer, and a metal metal-layer between the inner layer and the outer layer. The bonding strength between the outer layer and the metal layer is made weaker with respect to the bonding strength between the inner layer and the metal layer. For example, while an adhesive layer is provided between the inner layer and the metal layer, the outer layer can be directly extrusion coated onto the metal layer without providing an adhesive layer or the like between the outer layer and the metal layer.
    Type: Grant
    Filed: February 26, 2015
    Date of Patent: May 8, 2018
    Assignees: FURUKAWA AUTOMOTIVE SYSTEMS INC., FURUKAWA ELECTRIC CO., LTD.
    Inventors: Masanori Yamasaki, Tatsuya Yuasa, Yoshiyuki Hirayama, Nobuaki Sakai, Naoko Omori, Masakazu Kozawa, Takuro Yamada, Manabu Kojima
  • Patent number: 9525215
    Abstract: A crimp terminal that can maintain excellent water-stop performance over a long term and is enhanced in joint strength between a fitting portion and a covered electrical wire connection portion. The crimp terminal has a fitting portion at a tip thereof and an electrical wire connection portion at a rear end thereof, the electrical wire connection portion is configured in a tubular shape, a tip of the tube is crushed to be superimposed and closed, and a portion between the fitting portion and the electrical wire connection portion is formed by superimposing and bending two or more sheets of a plate material.
    Type: Grant
    Filed: July 30, 2015
    Date of Patent: December 20, 2016
    Assignees: FURUKAWA ELECTRIC CO., LTD., FURUKAWA AUTOMOTIVE SYSTEMS INC.
    Inventors: Yukihiro Kawamura, Takashi Tonoike, Takuro Yamada, Masakazu Kozawa, Daisuke Takahashi, Masafumi Kawata, Tomohiro Yamazaki, Hiroaki Kobayashi
  • Patent number: 9484652
    Abstract: A crimp terminal includes; a crimping portion and a cover, the crimping portion is formed in a hollow cylindrical shape in cross section and has a first and a second end portion opposite to the first end portion. The conductor portion is inserted into the first end portion in a longitudinal direction, and the second end is sealed. The second end portion at the opposite side is sealed by welding. The crimping portion has a guide section inside the crimping portion into which the exposed conductor portion is inserted. An inner diameter of the guide section is smaller than an outer diameter of the cover of the insulated wire and larger than an outer diameter of the conductor portion. A length between the first end portion into which the conductor portion is inserted and the guide section is smaller than a length of the exposed conductor portion of the insulated wire.
    Type: Grant
    Filed: September 11, 2014
    Date of Patent: November 1, 2016
    Assignees: FURUKAWA ELECTRIC CO., LTD., FURUKAWA AUTOMOTIVE SYSTEMS INC.
    Inventors: Takuro Yamada, Yukihiro Kawamura, Masakazu Kozawa, Takashi Tonoike
  • 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: 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
  • 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
  • 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: 20150340772
    Abstract: A crimp terminal that can maintain excellent water-stop performance over a long term and is enhanced in joint strength between a fitting portion and a covered electrical wire connection portion. The crimp terminal has a fitting portion at a tip thereof and an electrical wire connection portion at a rear end thereof, the electrical wire connection portion is configured in a tubular shape, a tip of the tube is crushed to be superimposed and closed, and a portion between the fitting portion and the electrical wire connection portion is formed by superimposing and bending two or more sheets of a plate material.
    Type: Application
    Filed: July 30, 2015
    Publication date: November 26, 2015
    Applicants: FURUKAWA ELECTRIC CO., LTD., FURUKAWA AUTOMOTIVE SYSTEMS INC.
    Inventors: Yukihiro KAWAMURA, Takashi Tonoike, Takuro Yamada, Masakazu Kozawa, Daisuke Takahashi, Masafumi Kawata, Tomohiro Yamazaki, Hiroaki Kobayashi
  • Publication number: 20150237770
    Abstract: An electromagnetic shielding tube has a resin inner layer as the innermost layer, a resin outer layer as the outermost layer, and a metal metal-layer between the inner layer and the outer layer. The bonding strength between the outer layer and the metal layer is made weaker with respect to the bonding strength between the inner layer and the metal layer. For example, while an adhesive layer is provided between the inner layer and the metal layer, the outer layer can be directly extrusion coated onto the metal layer without providing an adhesive layer or the like between the outer layer and the metal layer.
    Type: Application
    Filed: February 26, 2015
    Publication date: August 20, 2015
    Inventors: Masanori YAMASAKI, Tatsuya YUASA, Yoshiyuki HIRAYAMA, Nobuaki SAKAI, Naoko OMORI, Masakazu KOZAWA, Takuro YAMADA, Manabu KOJIMA
  • Publication number: 20150072573
    Abstract: A crimp terminal (10) comprises a box part (20) and a cable connector (30). The box part (20) is connected to another terminal. The cable connector (30) is coupled with the box terminal (20) and connected with a covered cable (50). Also, the cable connector (30) includes a hollow formed by welding a metal plate, in which a pressing part for conduction (33b) and a compression part for waterproofing (33a) are formed. The pressing part for conduction (33b) presses a conduction part (51) of the covered cable (50) to ensure conduction with the covered cable. The compression for waterproofing (33a) presses and compresses a covered part (52) of the covered cable (50) inwardly to prevent water from entering inside.
    Type: Application
    Filed: September 9, 2014
    Publication date: March 12, 2015
    Inventors: Yukihiro KAWAMURA, Takashi TONOIKE, Hiroshi ORITO, Yasushi KIHARA, Takuro YAMADA, Masakazu KOZAWA
  • Publication number: 20140374155
    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: September 4, 2014
    Publication date: December 25, 2014
    Inventors: Akira TACHIBANA, Kengo MITOSE, Kyota SUSAI, Takao TATEYAMA, Yukihiro KAWAMURA, Takashi TONOIKE, Masakazu KOZAWA, Takuro YAMADA
  • Publication number: 20140378009
    Abstract: A crimp terminal includes; a crimping portion and a cover, the crimping portion is formed in a hollow cylindrical shape in cross section and has a first and a second end portion opposite to the first end portion. The conductor portion is inserted into the first end portion in a longitudinal direction, and the second end is sealed. The second end portion at the opposite side is sealed by welding. The crimping portion has a guide section inside the crimping portion into which the exposed conductor portion is inserted. An inner diameter of the guide section is smaller than an outer diameter of the cover of the insulated wire and larger than an outer diameter of the conductor portion. A length between the first end portion into which the conductor portion is inserted and the guide section is smaller than a length of the exposed conductor portion of the insulated wire.
    Type: Application
    Filed: September 11, 2014
    Publication date: December 25, 2014
    Applicants: FURUKAWA ELECTRIC CO., LTD., FURUKAWA AUTOMOTIVE SYSTEMS INC.
    Inventors: Takuro Yamada, Yukihiro Kawamura, Masakazu Kozawa, Takashi Tonoike