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    STORAGE CONTAINER
    131.
    发明申请
    STORAGE CONTAINER 有权

    公开(公告)号：US20210362147A1

    公开(公告)日：2021-11-25

    申请号：US17397272

    申请日：2021-08-09

    Applicant: FURUKAWA ELECTRIC CO., LTD.

    Inventor： Go KOBAYASHI ,  Junichi HASEGAWA ,  Noritaka MATSUBARA

    IPC: B01L3/00

    Abstract: A storage container includes: a substrate having a plurality of storage wells to store an object therein, the storage wells being formed on a predetermined substrate surface of the substrate. Further, the storage wells each includes an opening forming portion forming an opening portion opening on the substrate surface, and having an inclined surface that inclines from the substrate surface downward in a depth direction on an inner surface of the opening portion; and a bottomed storage portion that has a side wall surface extending in a direction perpendicular to the substrate surface on a lower side in the depth direction of the storage well relative to the opening forming portion, and that communicates with a region on the substrate surface through the opening portion, and a lower end of the inclined surface is connected to the side wall surface of the storage portion, forming a ridgeline.

    Fiber laser apparatus
    133.
    发明授权
    Fiber laser apparatus 有权

    公开(公告)号：US11171462B2

    公开(公告)日：2021-11-09

    申请号：US16194071

    申请日：2018-11-16

    Applicant: Furukawa Electric Co., Ltd.

    Inventor： Kosuke Kashiwagi ,  Akira Fujisaki ,  Yoshihiro Emori

    IPC: H01S3/067 ,  B23K26/042 ,  H01S3/23 ,  H01S3/094 ,  H01S3/0941 ,  H01S3/10

    Abstract: A fiber laser apparatus that generates invisible laser light using an amplification optical fiber having a core and that propagates a fundamental mode and a low-order mode is provided. The fiber laser apparatus includes a visible laser light source that generates visible laser light, an introducing section that introduces the visible laser light generated by the visible laser light source into a core of the amplification optical fiber, a cladding light attenuating section that attenuates light which has propagated through a cladding of the amplification optical fiber, at a subsequent stage of the amplification optical fiber, and a drive unit that drives the visible laser light source to emit the visible laser light through a core of the output optical fiber in a case of performing alignment of an irradiation position of the invisible laser light with respect to a workpiece.

    Semiconductor chip production method and surface protection tape
    134.
    发明授权
    Semiconductor chip production method and surface protection tape 有权

    公开(公告)号：US11171032B2

    公开(公告)日：2021-11-09

    申请号：US16738158

    申请日：2020-01-09

    Applicant: FURUKAWA ELECTRIC CO., LTD.

    Inventor： Kazuki Mikami ,  Tomoaki Uchiyama ,  Akira Akutsu

    IPC: H01L21/683 ,  H01L21/304 ,  H01L21/3065 ,  H01L21/3105 ,  H01L21/78 ,  H01L21/268 ,  C09J7/35 ,  C09J133/08

    Abstract: After grinding is performed on a semiconductor wafer, the semiconductor wafer is fixed on the electrostatic chuck so as to cause the front surface side of the semiconductor wafer to face the electrostatic chuck. Next, a masking material layer is formed on the rear surface of the ground semiconductor wafer in a state where a surface protection tape is bonded thereto. Then, a masking tape is cut by irradiating, from the rear surface side, portions thereof corresponding to a plurality of streets appropriately formed in a grid shape in a pattern surface with a laser beam so as to form openings for the streets in the semiconductor wafer. Then, SF6 plasma irradiation is performed from the rear surface side so as to etch the semiconductor wafer that has been exposed in the street portions. Finally, ashing is performed using O2 plasma.

    Optical module and light output device
    136.
    发明授权
    Optical module and light output device 有权

    公开(公告)号：US11139632B2

    公开(公告)日：2021-10-05

    申请号：US16054654

    申请日：2018-08-03

    Applicant: FURUKAWA ELECTRIC CO., LTD.

    Inventor： Koji Kajiwara ,  Keishi Takaki

    IPC: G02B6/255 ,  G02B6/26 ,  G02B6/02 ,  H01S3/067 ,  F21V8/00

    Abstract: An optical module comprising a first optical fiber corresponding to an incidence side for laser light a second optical fiber corresponding to an emission side for the laser light; and a connection protecting portion that is provided and located so as to cover a connection site for optically connecting the first optical fiber and the second optical fiber, wherein the second optical fiber has a larger core diameter than the first optical fiber, the connection site is a site where a core portion of the first optical fiber and a core portion of the second optical fiber are connected to each other in a discontinuous shape, and the connection protecting portion is formed of a thermally conductive protective material and/or a photorefractive protective material includes refractive index that is equal to or higher than that of a clad portion of the first optical fiber.

    OPTICAL FIBER AND METHOD FOR MANUFACTURING OPTICAL FIBER
    138.
    发明申请
    OPTICAL FIBER AND METHOD FOR MANUFACTURING OPTICAL FIBER 有权

    公开(公告)号：US20210294030A1

    公开(公告)日：2021-09-23

    申请号：US17342599

    申请日：2021-06-09

    Applicant: FURUKAWA ELECTRIC CO., LTD.

    Inventor： Kazunori MUKASA

    IPC: G02B6/036 ,  G02B6/02

    Abstract: An optical fiber includes: a central core portion; an intermediate layer formed around an outer circumference of the central core portion; a trench layer formed around an outer circumference of the intermediate layer; and a cladding portion formed around an outer circumference of the trench layer. Further, when, relative to the cladding portion, a relative refractive-index difference of the central core portion is Δ1, a relative refractive-index difference of the intermediate layer is Δ2, and a relative refractive-index difference of the trench layer is Δ3, relationships Δ1>Δ2>Δ3 and 0>Δ3 are satisfied and Δ1 is equal to or greater than 0.34% and equal to or less than 0.40%, |Δ3| is equal to or less than 0.25%, and Δ1×|Δ3| is less than 0.08%2.

    NANOCRYSTAL COMPOSITE
    140.
    发明申请
    NANOCRYSTAL COMPOSITE 有权

    公开(公告)号：US20210245141A1

    公开(公告)日：2021-08-12

    申请号：US17244792

    申请日：2021-04-29

    Applicant: Furukawa Electric Co., Ltd.

    Inventor： Yoshikazu TSUZUKI ,  Mariko WAKAE ,  Satoshi AOKI ,  Goro MIYOSHI ,  Hideki ABE

    IPC: B01J23/72 ,  B01J23/10 ,  B01J35/00 ,  B01J37/04 ,  B01J37/03 ,  B01J37/06 ,  B01J37/02 ,  B01D53/94

    Abstract: The present disclosure relates to a nanocrystal composite includes a connected aggregate including a plurality of nanocrystal fragments connected to one another, each nanocrystal fragment having a main surface and an end surface, and nanoparticles supported on the connected aggregate. The plurality of nanocrystal fragments each have a flaky shape; the plurality of nanocrystal fragments have gaps between the main surfaces; and the gaps G are arranged so as to open to the outside of the connected aggregate. The nanoparticles have a metallic element different from that of the plurality of nanocrystal fragments; and a proportion of a visual field area of the nanoparticles with respect to a visual field area of the plurality of nanocrystal fragments is 2% or more and 50% or less.

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