公开(公告)号：US11287574B2

公开(公告)日：2022-03-29

申请号：US17018108

申请日：2020-09-11

Applicant: FURUKAWA ELECTRIC CO., LTD.

Inventor： Masaki Iwama ,  Shunichi Matsushita

IPC: G02B6/26 ,  G02B6/04 ,  G02B6/34 ,  B23K26/064

Abstract: An irradiation spot of the laser beam having a large power density can be formed by a condensing apparatus which combines a plurality of laser lights without using a power combiner. The condensing apparatus comprises an optical fiber bundle formed of a plurality of optical fibers. One end of the optical fiber bundle forms an incident side bundle end, while the other end forms an emission side bundle end. The optical fiber bundle includes, at the emission side bundle end, an optical deflection unit that deflects at least two light beams emitted from respective light emission ends of at least two optical fibers toward different directions, respectively, such that the at least two light beams overlap each other on at least one cross section at rear on an optical path of the emission side bundle end and are then scattered.

公开(公告)号：US20220073405A1

公开(公告)日：2022-03-10

申请号：US17455802

申请日：2021-11-19

Applicant: FURUKAWA ELECTRIC CO., LTD.

Inventor： Tsuneo SUZUKI ,  Hiroshi MIYAKE

IPC: C03B37/014 ,  C03B37/07

Abstract: A heating apparatus includes: a furnace core tube configured to house a glass base material; a heating device installed at outer periphery of the furnace core tube; and a controller configured to control the heating device. The heating device includes a plurality of independently-controllable heaters arranged along a longitudinal direction of the glass base material. The heaters are grouped into a plurality of heating groups controllable in an independent manner by the controller. Each of the heating groups includes at least one of the heaters configured to heat the furnace core tube.

公开(公告)号：US11270730B2

公开(公告)日：2022-03-08

申请号：US16979023

申请日：2018-11-28

Applicant: UACJ CORPORATION ,  FURUKAWA ELECTRIC CO., LTD.

Inventor： Takuya Murata ,  Kotaro Kitawaki ,  Makoto Yonemitsu ,  Yasuo Fujii ,  Ryo Sakamoto ,  Hideyuki Hatakeyama ,  Sadayuki Toda

IPC: C22F1/00 ,  G11B5/84 ,  G11B5/73 ,  B32B15/01 ,  C22C21/00 ,  C22F1/04

Abstract: A magnetic disk substrate is composed of an aluminum alloy substrate, a base plating layer on a surface of the aluminum alloy substrate, and a boundary region between the aluminum alloy substrate and the base plating layer. The boundary region includes a specific boundary region (D(1)I(50-84)) having Al emission intensities equal to 50% to 84% of an average Al emission intensity in an interior region of the aluminum alloy substrate in glow discharge optical emission spectroscopy in the depthwise direction from the surface of the magnetic disk substrate. The specific boundary region (D(1)I(50-84)) has a maximum Fe emission intensity (I(1)Fe(max)) higher than an average Fe emission intensity (I(1)Fe(ave)) in the interior region of the aluminum alloy substrate in the glow discharge optical emission spectroscopy.

公开(公告)号：US11257611B2

公开(公告)日：2022-02-22

申请号：US16011327

申请日：2018-06-18

Applicant: FURUKAWA ELECTRIC CO., LTD.

Inventor： Tomohiro Takagi ,  Toru Fukushima ,  Hisaki Sakamoto

IPC: H01B12/06 ,  H01F6/06 ,  H01L39/14 ,  H01B13/00 ,  H01F27/28 ,  H01L39/24 ,  H02H7/00 ,  H01F6/02

Abstract: A superconducting wire rod according to an aspect of the present disclosure is a superconducting wire rod having a flat cross-sectional shape which is characterized in that a voltage is generated with a lower current density or a higher voltage is generated with the same current density in a region on at least one end side in a wire rod width direction as compared with a region other than the region on the at least one end side.

公开(公告)号：US20220016607A1

公开(公告)日：2022-01-20

申请号：US17299609

申请日：2019-12-03

Applicant: NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITY ,  FURUKAWA ELECTRIC CO., LTD.

Inventor： Mai NISHII ,  Yuichiro BANBA ,  Kaori SEKINE ,  Yukako NAKAI ,  Masayuki FUKUSHIMA ,  Sadahiro KATO ,  Hirokazu SASAKI ,  Shinsuke NISHIDA ,  Takao MASUDA ,  Yuta NAKASAKA ,  Takuya YOSHIKAWA

IPC: B01J29/03 ,  B01J35/02 ,  B01J37/02 ,  B01J29/89

Abstract: A functional structure which can prevent metal fine particles from aggregating, can suppress bonding of an active metal species and a support, and can easily undergo catalyst activation before being used for reactions. The functional structure includes supports each having a porous structure and including a zeolite-type compound, and at least one functional material precursor present in the supports and including a metal element (M), in which each of the supports has channels communicating with one another, the functional material precursor is present at least in the channel of each of the supports, and the metal element (M) having constituted the functional material precursor is partially substituted with an element having constituted the supports.

公开(公告)号：US20220010411A1

公开(公告)日：2022-01-13

申请号：US17427489

申请日：2020-01-27

Applicant: FURUKAWA ELECTRIC CO., LTD.

Inventor： Hiroshi KANEKO

IPC: C22C21/08 ,  C22C21/02 ,  C22F1/05 ,  C22F1/043 ,  C22F1/047

Abstract: An aluminum alloy that has high yield strength enabling use as a substitute for iron- and copper-based metal materials, and has a constant break elongation even at narrow diameters. The aluminum alloy has an alloy composition containing 0.20-1.80 mass % of Mg, 0.20-2.00 mass % of Si, and 0.01-1.50 mass % of Fe, with a balance being Al and inevitable impurities. The aluminum alloy material has a fibrous metallic microstructure in which a plurality of crystal grains extend so as to be aligned in one direction, and in a cross section parallel to the one direction, an average value of a maximum dimension in a direction perpendicular to the longitudinal direction of a plurality of the crystal grains is no more than 400 nm, and viewing the cross section in a thickness direction, when observing at a central part, specific voids having a maximum dimension in a direction perpendicular to the longitudinal direction of no less than 1.0 μm are not present, or an existence number of the specific voids is no more than 15 per 10000 μm2.

公开(公告)号：US11208710B2

公开(公告)日：2021-12-28

申请号：US16488826

申请日：2018-02-09

Applicant: UACJ CORPORATION ,  FURUKAWA ELECTRIC CO., LTD.

Inventor： Kotaro Kitawaki ,  Takuya Murata ,  Makoto Yonemitsu ,  Kouichiro Takiguchi ,  Takashi Nakayama ,  Kimie Imakawa ,  Yasuo Fujii ,  Hideyuki Hatakeyama

IPC: C22F1/04 ,  G11B5/73 ,  C22C21/00 ,  G11B5/858

Abstract: Provided are: an aluminum alloy substrate for a magnetic disk, including an aluminum alloy including 0.4 to 3.0 mass % of Fe with the balance of Al and unavoidable impurities; a method for producing the aluminum alloy substrate for a magnetic disk; and a magnetic disk in which an electroless Ni—P plating treatment layer and a magnetic layer formed thereon are disposed on a surface of the aluminum alloy substrate for a magnetic disk.

公开(公告)号：US20210396617A1

公开(公告)日：2021-12-23

申请号：US17446876

申请日：2021-09-03

Applicant: FURUKAWA ELECTRIC CO., LTD.

Inventor： Hideaki HASEGAWA ,  Hiroyuki TAMAOKA ,  Takeshi YAGI ,  Shinichi ARAI

IPC: G01L11/02 ,  G02B6/255 ,  G02B6/02

Abstract: A pressure sensor includes: a light source that outputs signal light; a sensor optical fiber where the signal light is input and the signal light is propagated with a loss of 0.3 dB/m or more; and an optical receiver that receives the signal light propagated through the sensor optical fiber. Further, pressure applied to the sensor optical fiber is detected on a basis of intensity of the signal light received by the optical receiver.

公开(公告)号：US20210389383A1

公开(公告)日：2021-12-16

申请号：US17459514

申请日：2021-08-27

Applicant: FURUKAWA ELECTRIC CO., LTD. ,  FURUKAWA AUTOMOTIVE SYSTEMS INC.

Inventor： Noriyasu IWANE ,  Etsuzo SATO ,  Yuichi Watanabe ,  Kazuyoshi SATO

IPC: G01R31/3842 ,  G01R31/36 ,  H02J7/00

Abstract: A chargeable battery state detection apparatus configured to detect a state of a chargeable battery is provided, comprising processor(s) and memorie(s) communicatively connected to the processor(s), wherein the processor(s) read out a group of instructions stored in the memorie(s), and execute a detection process for detecting a voltage and a current of the chargeable battery; a storage process for storing voltage values detected at different times by the detection process after charge and discharge is stopped; a fitting process for fitting, with respect to the voltage values, by adjusting coefficients of a predetermined function; a calculation process for calculating an open circuit voltage based on the function; and a discard process for discarding at least a part of the voltage values stored by the storage process when a current value or a voltage value detected by the detection process fluctuates by a predetermined threshold value or greater.

公开(公告)号：US20210376570A1

公开(公告)日：2021-12-02

申请号：US17444871

申请日：2021-08-11

Applicant: FURUKAWA ELECTRIC CO., LTD.

Inventor： Junichi HASEGAWA ,  Noritaka MATSUBARA

IPC: H01S5/14 ,  G02B6/125 ,  H01S5/10 ,  G02B6/122

Abstract: A ring-resonator filter device includes: a waveguide device that includes a core. Further, the core constitutes two ring resonator filters, each of the two ring resonator filters includes two arm portions, a ring-shaped portion, and two optical coupling/branching portions that optically couple the two arm portions and the ring-shaped portion, respectively, and the two ring-shaped portions cross each other.