Osaka, Japan
Osaka, Japan

Sumitomo Electric Industries, Ltd. is a manufacturer of electric wire and optical fiber cables. Its headquarters are in Chūō-ku, Osaka, Japan. The company's shares are listed in the first section of the Tokyo, Nagoya Stock Exchanges, and the Fukuoka Stock Exchange. In the period ending March 2013, the company reported consolidated sales of $23 billion .The company was founded in 1897 to produce copper wire for electrical uses. Sumitomo operates in five business fields: Automotive, Information & Communications, Electronics, Environment & Energy, and Industrial materials and is developing in two others: Life Sciences and Materials & Resources. It has more than 350 subsidiaries and over 200,000 employees in more than 30 countries.Sumitomo Electric has traditionally had an intensive focus on R&D to develop new products. Its technologies have been used in major projects including traffic control in Thailand, improvement of telecom networks in Nigeria, membrane technology for waste water treatment in Korea, and bridge construction in Germany.Sumitomo Electric's electrical wiring harness systems, which are used to send information and energy to automobiles, hold the second largest market share in the world. Sumitomo Electric also continues to be the leading manufacturer of composite semiconductors , which are widely used in semiconductor lasers, LEDs, and mobile telecommunications devices. The company is one of the top three manufacturers in the world of optical fiber. Wikipedia.


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Patent
Sumitomo Electric Industries, Sumitomo Electric and Chrysanthemum Co. | Date: 2017-05-10

To provide a cable bead capable of reducing manufacturing time and harder to generate uneven twisting and a method for manufacturing the same. Specifically, there is provided a coreless ring-shaped cable bead 1 in which a single strand 2 crimped so as to have a 1 x m1 x d1 single-twisted structure or a m2 x n x d2 double-twisted structure is wound into a spiral-shaped gap part for storing (m1 - 1) or (m2 - 1) crimped strands having the above structure and is wound by m1 or m2 turns.


Patent
Sumitomo Electric | Date: 2017-05-03

A cutting tool including: a tool body (2) provided with an insert support seat (5) including a major seat surface (5a) that supports a bearing surface of a cutting insert, a plurality of seat side surfaces (5b, 5c) that supports side surfaces of the cutting insert at different positions, and a thinned portion (5d) continuous with the major seat surface and the seat side surfaces; and a cutting insert attached to the insert support seat, wherein a ridge at a position where the major seat surface and the thinned portion intersect, a ridge at a position where the seat side surface and the thinned portion intersect, and a ridge at a position where the thinned portions continuous with each other intersect are each formed of a convex arc curved surface.


Patent
Sumitomo Electric Industries and Sumitomo Electric | Date: 2017-05-03

A sintered body of the present invention is a sintered body including a first material and cubic boron nitride. The first material is partially-stabilized ZrO_(2) including 5 to 90 volume % of Al_(2)O_(3) dispersed in crystal grain boundaries or crystal grains of partially-stabilized ZrO_(2).


Patent
Sumitomo Electric | Date: 2017-05-17

A cutting insert comprising a cutting edge (4) formed by an intersection ridge between a rake face (5) and a side face (6), the cutting edge including a major cutting edge (4a), a flat cutting edge (4c), and a chamfer edge (4b) disposed between the major cutting edge and the flat cutting edge, wherein in a direct view of a side face near the flat cutting edge, a ratio of installation area length L2 of the chamfer edge to installation area length L3 of the major cutting edge is L2 : L3 = 2 : 8 to 5 : 5, and inclination angle _(1) of the chamfer edge (4b) with respect to the flat cutting edge (4c) and inclination angle _(2) of the major cutting edge (4a) with respect to the flat cutting edge (4c) are set to have a relationship of _(1) < _(2).


Patent
Sumitomo Electric Industries and Sumitomo Electric | Date: 2017-05-24

Single crystal diamond of which hardness and chipping resistance have been improved in a balanced manner, a method for manufacturing the single crystal diamond, and a tool containing the diamond are provided. Single crystal diamond contains nitrogen atoms, and a ratio of the number of isolated substitutional nitrogen atoms in the single crystal diamond to the total number of nitrogen atoms in the single crystal diamond is not lower than 0.02% and lower than 40%.


Patent
Sumitomo Electric | Date: 2017-03-13

A semiconductor device includes a semiconductor layer formed on a substrate, an electrode contact window that includes a recess formed on a surface of the semiconductor layer, an inner wall having a slope, and a source electrode, a drain electrode, and a gate electrode formed on the semiconductor layer, in which the drain electrode is in contact with the slope of the inner wall.


Patent
Sumitomo Electric | Date: 2017-04-26

The present invention provides in various aspects a cutting tool which comprises a cutting tool insert (210) with a tip portion of cBN material having a cutting edge (216) formed therein and a base portion forming a sintered composition with the tip portion, and a body portion (220) coupling the cutting tool insert with a shank of the cutting tool, wherein the cutting tool insert (210) has a rake face (212) and a first flank face (214) defining the cutting edge (216). In one aspect, the rake face (212) has a negative rake angle relative to an axis parallel to a centre axis of the body portion. In another aspect, a second flank face (218) defining a further edge with the first flank face is formed such that the cutting edge (216) and the further edge do not have a common vertex. Herein the second flank face (218) is tilted with respect to an axis parallel to a centre axis of the body portion (220) by an angle greater than 0o.


A semiconductor laser diode type of a buried-hetero structure (BH-LD) is disclosed. The LD provides a mesa, a first burying layer, and a second burying layer, where the burying layers are provided in respective sides of the mesa so as to expose a top of the mesa. The mesa includes a lower cladding layer, an active layer, and an upper cladding layer, where the cladding layers have conduction type opposite to each other and, combined with the burying layers, constitute a carrier confinement structure. The second burying layer has an even surface overlapping with an even surface of the first burying layer, and has a thickness in a portion of the even surface that is thinner than a thickness thereof in a portion except for the even surface.


The invention relates to a device for connecting electrical conductors (31, 32, 3n) having shielding layers (21, 22, 2) in a electromagnetically compatible manner against interference fields, particularly in motor vehicles. The conductors (31, 32, 3n) to be connected are guided in a housing (5) of the device, which is also referred to as high-voltage distributor. In order to ensure the electromagnetic shielding, the shielding layers (21, 22, 2n), of the stripped cables are turned inside out and are pulled over contact segments (11, 12, 1n) of the housing (5) provided therefor, as a result of which an electrical contacting takes place. The fixing of the shielding layers (21, 22, 2n) is realized by one terminal (41, 42, 4n) each.


Patent
Sumitomo Electric Industries and Sumitomo Electric | Date: 2017-04-14

The diamond coated tool of the present invention is a diamond coated tool including a base material and a diamond layer coating a surface of the base material, and characterized in that the surface of the base material has an arithmetic average roughness Ra of not less than 0.1 m and not more than 10 m and an average length of roughness profile elements RSm of not less than 3.1 m and not more than 5.4 m, and that the diamond layer has a plurality of cavities at a portion bordering on the base material.

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