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公开(公告)号：US20250130610A1
公开(公告)日：2025-04-24
申请号：US18730432
申请日：2022-11-25
Applicant: Fujikura Ltd.
Inventor： Hiroyuki Kusaka , Masahiro Kashiwagi
IPC: G06E1/04
Abstract: An optical computing device includes a spatial light modulator that carries out binary modulation of carrier light for each cell and generates first signal light representing a first wave number space image and an optical modulation element group including two or more optical modulation elements that sequentially act on the first signal light.
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公开(公告)号：US20240236513A1
公开(公告)日：2024-07-11
申请号：US18001265
申请日：2022-01-18
Applicant: Fujikura Ltd.
Inventor： Hiroyuki Kusaka , Masahiro Kashiwagi , Yuichiro Kunai
CPC classification number: H04N23/95 , H04N23/815 , H04N25/41
Abstract: An imaging device includes: an optical computing section that receives a first optical signal and generates a second optical signal including a feature amount extracted from the first optical signal; an image sensor that converts the second optical signal into a first electric signal including a piece of image information; and a computer that receives the first electric signal and generates second electric signals using machine learning models, each of the second electric signals corresponding to a respective one of the machine learning models, wherein: each of the second electric signals, generated from the first electric signal including the same piece of image information, includes different image information.
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公开(公告)号：US20240103207A1
公开(公告)日：2024-03-28
申请号：US18009513
申请日：2021-06-30
Applicant: FUJIKURA LTD.
Inventor： Hiroyuki Kusaka , Masahiro Kashiwagi , Yuichiro Kunai
Abstract: An optical computing device includes: a light diffraction element group including light diffraction elements having an optical computing function, wherein the light diffraction element group passes light through the light diffraction elements in turn, the light passing through the light diffraction elements was either: reflected or scattered from a non-illuminant object located outside the optical computing device, or emitted from an illuminant object located outside the optical computing device, and neither the non-illuminant object nor the illuminant object is a display.
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公开(公告)号：US20230194887A1
公开(公告)日：2023-06-22
申请号：US17925518
申请日：2022-01-27
Applicant: Fujikura Ltd.
Inventor： Hiroyuki Kusaka , Masahiro Kashiwagi
CPC classification number: G02B27/4233 , G02B27/4272 , G06E3/00
Abstract: An optical computing device includes: one or more light-diffraction elements each of which includes microcells, wherein each of the microcells has an individually set thickness or refractive index; and an optical signal input section that simultaneously inputs an optical signal and a delayed optical signal obtained by delaying the optical signal to the one or more light-diffraction elements.
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公开(公告)号：US20210001428A1
公开(公告)日：2021-01-07
申请号：US17040760
申请日：2019-03-28
Applicant: FUJIKURA LTD.
Inventor： Hiroyuki Kusaka , Masahiro Kashiwagi
IPC: B23K26/354 , B23K26/342 , B33Y10/00 , B33Y30/00 , B33Y50/02
Abstract: The present invention causes residual stress, which may be generated in a metal shaped object (MO), to be small. A metal shaping device includes an irradiation device (13, 13A). The irradiation device (13, 13A), which is configured to irradiate a powder bed (PB) containing a metal powder with laser light (L), is able to be switched between (i) a focused state in which a beam spot diameter (D1) of laser light (L) on a surface of the powder bed (PB) has a first value and (ii) a defocused state in which the beam spot diameter (D2) of the laser light (L) on the surface of the powder bed (PB) has a second value which is larger than the first value.
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Patent Agency Ranking
公开(公告)号：US09448425B2
公开(公告)日：2016-09-20
申请号：US14748331
申请日：2015-06-24
Applicant: FUJIKURA LTD.
Inventor： Kensuke Ogawa , Kazuhiro Goi , Hiroyuki Kusaka
CPC classification number: G02F1/025 , G02B6/1228 , G02B2006/12061 , G02B2006/12097 , G02B2006/12159 , G02F1/015 , G02F1/2257 , G02F2001/0152 , G02F2001/212
Abstract: An optical waveguide element includes: a rib waveguide and a pair of slab portions including a first slab portion and a second slab portion connected to both sides of the rib portion so as to sandwich the rib portion. The rib portion has a cross-sectional dimension which allows the propagation of a fundamental mode and a higher order mode in a predetermined single polarization state, and has a first P-type semiconductor and a first N-type semiconductor forming a PN junction, the first slab portion has a second P-type semiconductor and a P-type conductor connected to each other, the second P-type semiconductor is connected to the first P-type semiconductor of the rib portion, the second slab portion has a second N-type semiconductor and an N-type conductor connected to each other, and the second N-type semiconductor is connected to the first N-type semiconductor of the rib portion.
Abstract translation: 光波导元件包括：肋波导和一对板状部分，其包括连接到肋部分两侧的第一板坯部分和第二板坯部分，以便夹住肋部分。 肋部具有允许在预定的单极化状态下传播基模和高阶模的横截面尺寸，并且具有形成PN结的第一P型半导体和第一N型半导体， 第一板状部具有彼此连接的第二P型半导体和P型导体，第二P型半导体与肋部的第一P型半导体连接，第二板状部具有第二N型半导体， 并且第二N型半导体与肋部的第一N型半导体连接。
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公开(公告)号：US09335472B2
公开(公告)日：2016-05-10
申请号：US14509126
申请日：2014-10-08
Applicant: FUJIKURA LTD.
Inventor： Akira Oka , Kensuke Ogawa , Kazuhiro Goi , Hiroyuki Kusaka
CPC classification number: G02B6/1228 , G02B6/125 , G02B6/126 , G02B6/14
Abstract: A planar optical waveguide device, includes: two input portions that are waveguides that have the same width, are parallel to each other, and have rectangular cross-sections; a wide portion that is a linear waveguide and is connected after the two input portions; a tapered portion that is connected after the wide portion and that is a multi-mode waveguide which has a tapered shape having a width decreasing gradually and through which at least TE1 propagates; and an output portion that is connected after the tapered portion and that is a multi-mode waveguide which has a rectangular cross-section and through which at least TE1 propagates. The planar optical waveguide device forms a high-order mode conversion combining element that outputs the TE0, which is input to the two input portions, as the TE1 from the output portion.
Abstract translation: 平面光波导装置包括：具有相同宽度的波导的两个输入部分彼此平行并具有矩形横截面; 宽的部分是线性波导并且在两个输入部分之后连接; 连接在宽部分之后的锥形部分，并且是具有逐渐减小并且至少TE1传播的宽度的锥形形状的多模式波导; 以及输出部分，其连接在锥形部分之后，并且是具有矩形横截面且至少TE1传播的多模波导的输出部分。 平面光波导器件形成从输出部分输出到两个输入部分的TE1作为TE1的高阶模式转换组合元件。
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公开(公告)号：US20240118724A1
公开(公告)日：2024-04-11
申请号：US18263201
申请日：2021-11-09
Applicant: FUJIKURA LTD.
Inventor： Hiroyuki Kusaka , Masahiro Kashiwagi
CPC classification number: G06E1/00 , G02B5/1847
Abstract: A light diffraction element includes a computing optical structure constituted by microcells, and a position adjustment optical structure outside the computing optical structure.
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公开(公告)号：US20240085600A1
公开(公告)日：2024-03-14
申请号：US18274557
申请日：2022-01-14
Applicant: FUJIKURA LTD.
Inventor： Hiroyuki Kusaka , Masahiro Kashiwagi
Abstract: A light diffraction element unit includes a base material including a light-transmissive and flexible layer member, a light diffraction structure including microcells and disposed on a portion of a main surface of the base material, and a holding part holding the base material and including a layer member or a plate member having an opening that penetrates through a pair of main surfaces of the layer member or the plate member. The holding part holds an annular portion of the base material such that the light diffraction structure is encompassed in the opening. The annular portion surrounds the portion of the main surface of the base material.
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公开(公告)号：US20220269100A1
公开(公告)日：2022-08-25
申请号：US17635483
申请日：2021-06-17
Applicant: FUJIKURA LTD.
Inventor： Hiroyuki Kusaka , Masahiro Kashiwagi
Abstract: A light diffraction element, that has cells, includes first regions and second regions. Each of the cells comprises one of the first regions and one of the second regions. Each of the first regions has a thickness or a refractive index that is independently set. The second regions have a uniform thickness or a uniform refractive index. The first regions allow first polarized components of signal light to pass through. The second regions allow second polarized components of signal light to pass through. The second polarized components are different, in polarization direction, from the first polarized components. The light diffraction element performs optical computing by causing the first polarized components of signal light that have passed through the first regions to interfere with each other. The first polarized components of signal light output from the light diffraction element indicate information after the optical computing.
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