公开(公告)号：EP4266100A1

公开(公告)日：2023-10-25

申请号：EP21906462.3

申请日：2021-12-08

Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.

Inventor： SATO, Toshihisa ,  FUJII, Takashi

IPC: G02B6/44

Abstract: Provided is an intermittently coupled optical fiber ribbon in which a bonded portion in which adjacent optical fibers are bonded by an adhesive resin and a non-bonded portion are intermittently provided in a longitudinal direction. The bonded portion is provided on one side of the optical fiber ribbon. A part of the bonded portion protrudes further than a tangent line passing through surfaces of the adjacent optical fibers on the one side. In the longitudinal direction, at least one of longitudinal end portions of the bonded portion has a larger protrusion height than a central portion of the bonded portion. The adhesive resin has a composite elastic modulus of 0.5 GPa or more and 6.0 or less at 23°C.

公开(公告)号：EP4246541A1

公开(公告)日：2023-09-20

申请号：EP21909896.9

申请日：2021-10-11

Applicant: Japan Superconductor Technology, Inc. ,  RIKEN ,  SUMITOMO ELECTRIC INDUSTRIES, LTD.

Inventor： YOSHIKAWA, Masatoshi ,  MIYOSHI, Yasuyuki ,  HAMADA, Mamoru ,  SAITO, Kazuyoshi ,  YANAGISAWA, Yoshinori ,  PIAO, Renzhong ,  OHKI, Kotaro ,  YAMAGUCHI, Takashi ,  NAGAISHI, Tatsuoki

IPC: H01F6/06

Abstract: A superconducting coil device according to one embodiment of the present invention includes: A superconducting coil device including: a bobbin having a tubular body; superconducting wires, a part of which constitutes a wound portion where the superconducting wires are wound on the bobbin; a bobbin-side guide portion holding the superconducting wires extending from the bobbin, the bobbin-side guide portion being provided to extend in a bobbin axial direction, which is an axial direction of the body of the bobbin; a first guide portion holding the superconducting wires extending from the bobbin-side guide portion, the first guide portion being arranged on an outer side of the bobbin-side guide portion in a direction intersecting the bobbin axial direction and provided to extend in the direction intersecting the bobbin axial direction; and a second guide portion capable of holding the superconducting wires extending from the first guide portion, the second guide portion being provided to extend in a direction intersecting the direction of extension of the first guide portion, in which the superconducting wires are constituted of a plurality of wires connected in series, and a connection portion between the wires is fixed to at least either one of the first guide portion and the second guide portion.

公开(公告)号：EP4242710A1

公开(公告)日：2023-09-13

申请号：EP21889192.7

申请日：2021-11-02

Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.

Inventor： SAKUMA, Hirotaka ,  SUGANUMA, Takahiro ,  HAYASHI, Tetsuya ,  HASEGAWA, Takemi

IPC: G02B6/02

Abstract: An MCF includes a plurality of cores each extending in a direction along a central axis and a cladding covering each of the plurality of cores. The cladding includes a low refractive index barrier. The low refractive index barrier includes an alkali metal element. A relative refractive index of the low refractive index barrier is lower than an average value of a relative refractive indices of the cladding overall. The core interval is set such that a total sum of the power coupling coefficients between a specific core among the plurality of cores and each of all remaining cores is 2.3 × 10 -4 /km or less.

公开(公告)号：EP4239384A1

公开(公告)日：2023-09-06

申请号：EP21886368.6

申请日：2021-10-29

Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.

Inventor： SATO Fumiaki ,  SUZUKI Yohei ,  SHIMODA Yuuki

IPC: G02B6/44

Abstract: This optical fiber cable (1) comprises a plurality of optical fiber core wires (2); a plurality of absorptive fibers (3); and an outer skin (4). The outer skin (4) covers the circumference of the plurality of optical fiber core wires (2) and the plurality of absorptive fibers (3). The fraction of the area of the cross-sections of the absorptive fibers (3) to the area of an accommodation section (S) further inward than the outer skin (4) is 1-5% in a cross-section perpendicular to the longitudinal direction of the optical fiber cable (1). The maximum value of the area of a cavity section (S1) surrounded by the optical fiber core wires (2) in the cross-section is 1.0 mm2 or less.

公开(公告)号：EP4231074A1

公开(公告)日：2023-08-23

申请号：EP21882739.2

申请日：2021-10-15

Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.

Inventor： IWAGUCHI Noriaki ,  FUJII Takashi ,  SATO Fumiaki

IPC: G02B6/44

Abstract: An optical fiber ribbon (1A) is provided with a plurality of coated optical fibers (11) arranged in parallel in a direction orthogonal to the longitudinal direction thereof, and a collective covering layer (20) that covers the respective outer peripheries of the plurality of coated optical fibers (11). The collective covering layer (20) includes a coupling part (21) that couples adjacent coated optical fibers (11) in at least some of the plurality of coated optical fibers (11). The outer diameters of the plurality of coated optical fibers (11) are each 215 µm or less. The kinetic friction force of the collective covering layer (20) is 0.3 N or less.

公开(公告)号：EP4174913A1

公开(公告)日：2023-05-03

申请号：EP22213440.5

申请日：2015-12-07

Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.

Inventor： FUJIWARA, Shinya ,  HIGUCHI, Yasuaki

IPC: H01L21/20 ,  H01L29/20 ,  H01L33/00

Abstract: An indium phosphide substrate (10) used for an epitaxial wafer which is suitably used for a high electron mobility transistor (HEMT) or a heterojunction bipolar transistor (HBT), comprising a first main surface (11) for formation of an epitaxial film of InP thereon and having a surface roughness Ra1 at a center position and surface roughnesses Ra2, Ra3, Ra4, and Ra5 at four positions, the four positions being arranged equidistantly along an outer edge of the first main surface (11) and located at a distance of 5 mm inwardly from the outer edge, wherein an average value m1 of the surface roughnesses Ra1, Ra2, Ra3, Ra4, and Ra5 being 0.4 nm or less, and a standard deviation σ1 of the surface roughnesses Ra1, Ra2, Ra3, Ra4, and Ra5 being 10% or less of the average value m1, and a second main surface (12) having a surface roughness Ra6 at a center position and surface roughnesses Ra7, Ra8, Ra9, and RalO at four positions, the four positions being arranged equidistantly along an outer edge of the second main surface (12) and located at a distance of 5 mm inwardly from the outer edge, wherein an average value m2 of the surface roughnesses Ra6, Ra7, Ra8, Ra9, and RalO being 0.2 nm or more and 3 nm or less, and a standard deviation σ2 of the surface roughnesses Ra6, Ra7, Ra8, Ra9, and RalO being 10% or less of the average value m2, wherein the indium phosphide substrate contains a dopant made of Fe.

公开(公告)号：EP4137257A1

公开(公告)日：2023-02-22

申请号：EP20931181.0

申请日：2020-11-06

Applicant: Sumitomo Electric Industries, Ltd.

Inventor： KOIKE,Yusuke ,  HIGASHIURA,Yuma

IPC: B23C9/00 ,  B23Q17/09

Abstract: A processing system includes a cutting tool for milling, a plurality of sensors, and a processing unit. The plurality of sensors each is configured to measure a physical quantity that indicates a state related to loads on the cutting tool during cutting. The processing unit is configured to generate, based on measurement results from the respective sensors at a plurality of measurement time points, measurement data that is related to the loads in two directions on a plane perpendicular to a rotation axis of the cutting tool and that includes two-dimensional data at each of the measurement time points, and to perform a determination process concerning cutting in which the cutting tool is used, based on a two-dimensional shape indicated by the generated measurement data.

公开(公告)号：EP4134457A1

公开(公告)日：2023-02-15

申请号：EP21783672.5

申请日：2021-03-03

Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD. ,  A.L.M.T. Corp.

Inventor： MAJIMA, Masatoshi ,  TOYOSHIMA, Gouhei ,  TAKASHIMA, Kouichi

IPC: C22C1/05 ,  C22C26/00 ,  C25D7/00 ,  H01L23/373

Abstract: A composite material of the present disclosure contains a plurality of diamond particles, copper, and at least one first element selected from the group consisting of silicon, chromium, cobalt, nickel, molybdenum, titanium, vanadium, niobium, tantalum and tungsten, wherein the content rate of the first element based on the total mass of the copper and the first element is 50 ppm or higher and 2,000 ppm or lower.

公开(公告)号：EP4104957A1

公开(公告)日：2022-12-21

申请号：EP21814616.5

申请日：2021-04-07

Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.

Inventor： YAMANISHI, Takato ,  TSUDA, Keiichi

IPC: B23B27/14 ,  C22C14/00 ,  C22C29/08 ,  C22C1/05

Abstract: A cutting tool according to an aspect of the present disclosure is made of a cemented carbide including a first hard phase and a binder phase. The first hard phase is composed of WC particles. The binder phase contains at least one element selected from Co and Ni. The cutting tool includes a main body part and a surface layer part provided on a surface of the main body part. A thickness of the surface layer part is equal to or less than an average particle diameter of the first hard phase. On a surface of a plain part in a rake face, 1.0 GPa or more of a compressive residual stress is applied to the first hard phase. A ratio (B/A) of the average particle diameter (B) of the first hard phase on the surface of the plain part in the rake face to an average particle diameter (A) of the first hard phase on a cross section of the main body part is 0.7 or more and less than 1.

公开(公告)号：EP4092002A1

公开(公告)日：2022-11-23

申请号：EP20914233.0

申请日：2020-12-08

Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.

Inventor： HOMMA Yuya

IPC: C03C25/285 ,  C03C25/1065 ,  C03C25/6226 ,  C08F290/06 ,  G02B6/44

Abstract: A resin composition for secondary coating of an optical fiber is a resin composition comprising: a photopolymerizable compound comprising a urethane (meth)acrylate having a number average molecular weight of 10000 or more and 40000 or less; and a photopolymerization initiator, the content of the urethane (meth)acrylate is 0.05 parts by mass or more and 15 parts by mass or less based on the total amount of the resin composition of 100 parts by mass, and the urethane (meth)acrylate is a reaction product of a polyol having a number average molecular weight of 1800 or more and 4500 or less, a diisocyanate, and a hydroxyl group-containing (meth)acrylate.