公开(公告)号：JP2000311520A

公开(公告)日：2000-11-07

申请号：JP12002899

申请日：1999-04-27

Applicant: SUMITOMO ELECTRIC INDUSTRIES

Inventor： FUJITA TARO ,  NISHIKAWA SHINYA ,  YADOSHIMA SATOSHI ,  YOKOI KIYONORI

IPC: H01B3/44 ,  H01B7/00 ,  H01B7/02 ,  H01B11/06

Abstract: PROBLEM TO BE SOLVED: To provide an electric wire used for signal transmission in an electronic apparatus and for data communication, having a highly foamed insulation layer. and having excellent side-pressure resisting performance, and to provide a coaxial structure of the insulated wire excellent in flexibility, reduced in noises produced by bending, etc., and facilitating terminal work. SOLUTION: In this foam-insulated wire, a resin-composition foam layer with a base polymer including a poly-(4-methyl-1-pentene) is provided on a conductor. To make the foam insulated wire into a coaxial structure, a ribbon- shaped conductor into which a round wire of copper or copper alloy is flattened by rolling is used as an outer conductor 3, and the ribbon-shaped conductor is helically wound on an insulator 2 to form the outer conductor.

公开(公告)号：JP2019002766A

公开(公告)日：2019-01-10

申请号：JP2017116842

申请日：2017-06-14

Applicant: SUMITOMO ELECTRIC INDUSTRIES ,  YUASA SYSTEM KIKI KK

Inventor： TANAKA NARIYUKI ,  FUJITA TARO ,  NISHIKAWA SHINYA ,  YAMASUMI SHOJI ,  OKADA KAZUNORI ,  OKAZAKI YUKIHISA ,  SASAKI TOSHIAKI ,  ANDO NAOTSUGU

IPC: G01N17/00 ,  F16C17/02 ,  F16C33/20

Abstract: 【課題】本発明は、広範な温度環境下で被試験体の耐久試験を行うことができる試験装置及び試験装置の提供を目的とする。【解決手段】本発明の一態様に係る試験装置は、特定温度下で被試験体の耐久試験を行う試験装置であって、上記被試験体を収容でき、内部を特定温度に制御可能な恒温室と、上記恒温室に滑り軸受を介して挿通され、回転駆動される駆動軸と、上記恒温室内で駆動軸に連結され、駆動軸の回転を上記被試験体に付与する目的の動作へ変換する作動子とを備え、上記滑り軸受が、150℃以上のガラス転移温度を有する第1合成樹脂を主成分とする。【選択図】図1

公开(公告)号：JP2002216548A

公开(公告)日：2002-08-02

申请号：JP2001008514

申请日：2001-01-17

Applicant: SUMITOMO ELECTRIC INDUSTRIES

Inventor： KANBAYASHI SUSUMU ,  YAGISAWA JO ,  FUJITA TARO

IPC: H01B7/36 ,  H01B13/00 ,  H01B13/34

Abstract: PROBLEM TO BE SOLVED: To improve productivity and reduce the cost by making an insulated wire distinguishable by color without using a colored resin material to an insulator cover layer of a conductor. SOLUTION: In a colored insulated wire, a wire can be identified by giving a distinguishing color to the insulated wire where the conductor is covered by the insulator cover layer. A color coating film 4 is provided on the surface of conductors 1, 2, 3, and a transparent insulated cover layer 5 made of a transparent insulating resin material is provided on the color coating film 4.

公开(公告)号：JP2000029389A

公开(公告)日：2000-01-28

申请号：JP19714698

申请日：1998-07-13

Applicant: SUMITOMO ELECTRIC INDUSTRIES

Inventor： FUJITA TARO ,  KISHIMOTO TOMOYOSHI ,  HIROTA MASAMICHI ,  KATO KIYOSHI

IPC: B32B7/02 ,  B29C63/42 ,  G09F3/02 ,  G09F3/04 ,  G09F13/20 ,  G09F13/22

Abstract: PROBLEM TO BE SOLVED: To make it possible to enhance light emission intensity, to enhance easily and effectively the visibility of an object in the nighttime or in a dark place and to facilitate identification by forming a light reflective layer on the inside surface of a heat shrink layer formed of a thermoplastic resin compsn. contg. light storage pigments. SOLUTION: The light reflective layer 3 is formed on the inside surface of the heat shrink layer 2 formed of the thermoplastic resin compsn. contg. light storage pigments. The inside surface of the light storage layer is provided with the light reflective layer 3, by which the light heading toward the inside surface from the light storage layer may be reflected and the intensity of the light reflecting to the outer side may be enhanced. The light reflective layer 3 to be formed on the inside surface of the heat shrink tube 1 having the light storability may be formed by sticking metallic foil of aluminum, etc., to the inside surface of the tube or melt extruding the thermoplastic resin compsn. contg. the pigments of bright colors to the inside surface of the tube, etc. The thermoplastic resin is preferably a copolymer, of polyethylene, ethylene system, etc.

公开(公告)号：JP2019091639A

公开(公告)日：2019-06-13

申请号：JP2017220167

申请日：2017-11-15

Applicant: AUTO NETWORK GIJUTSU KENKYUSHO KK ,  SUMITOMO WIRING SYSTEMS ,  SUMITOMO ELECTRIC INDUSTRIES

Inventor： HIROSE MITSURU ,  FUKUMOTO KOJI ,  HASHIMOTO DAISUKE ,  NAKAMURA TETSUYA ,  NAKAJIMA KAZUO ,  TANAKA NARIYUKI ,  FUJITA TARO ,  NISHIKAWA SHINYA

IPC: H01B7/00 ,  H01B7/282 ,  H01B13/00 ,  H01R4/70 ,  H01R4/72

Abstract: 【課題】絶縁材の損傷を抑制しつつも、モールド部における止水性を高めることのできる端子付電線を提供する。【解決手段】端子付電線1は、芯線4と芯線4の周囲を被覆する絶縁材5とを有する絶縁電線1aと、絶縁電線1aの端部において芯線4と電気的に接続された端子金具2と、絶縁材5の端部を被覆する接着性チューブ7とを有する。端子付電線1は、端子金具2における芯線4と接続される芯線接続部2bから接着性チューブ7の軸線方向の中間部までの領域を被覆するように形成されたモールド部3を有する。接着性チューブ7の外周面はモールド部3の内周面に接着され、接着性チューブ7の内周面は絶縁材5の外周面に接着されている。【選択図】図1

公开(公告)号：JPH11213759A

公开(公告)日：1999-08-06

申请号：JP2158598

申请日：1998-01-20

Applicant: SUMITOMO ELECTRIC INDUSTRIES

Inventor： YADOSHIMA SATOSHI ,  FUJITA TARO ,  TSUJINO ATSUSHI ,  HIRAKAWA YOSHIHIRO ,  SANO MASATO ,  OTSUKA HIROYUKI

IPC: C08J9/04 ,  B29C44/00 ,  B29C47/02 ,  B29K23/00 ,  B29K105/04 ,  B29K705/00 ,  B29L9/00 ,  C08L23/00 ,  C08L23/26 ,  H01B3/44 ,  H01B7/02 ,  H01B13/14

Abstract: PROBLEM TO BE SOLVED: To provide a thin and polyolefin insulated electric wire suitable for high speed data communication and having high adhesion strength between a conductor and insulating layer, good appearance, and low dielectric constant without unevenness, and highly foamed insulating layer. SOLUTION: This electric wire is a foamed polyolefin-insulated electric wire satisfying following three conditions: a conductor diameter of 0.4 mm ϕ or smaller and an insulating coating thickness of 0.8 mm or thinner, an equivalent dielectric constant =100 g/50 mm. A polyolefin containing 10 wt.% of more of ionomer is used for the electric wire. Manufacture of the electric wire includes process of forming a foamed layer on a conductor by foaming-extrusion at swelling ratio >=55% and foaming degree of the polyolefin >=50% by using a chemical foaming agent and/or an inert gas foaming agent.