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1.发明公开公开(公告)号：US20240162790A1
公开(公告)日：2024-05-16
申请号：US18282240
申请日：2021-03-24
发明人： Kodai OKAZAKI , Kan AKATSU
CPC分类号： H02K11/33 , H02K3/28 , H02K11/26 , H02K2201/03 , H02K2213/03
摘要： Provided is a magnetic gap length estimating device in which neither a current sensor nor a current load is necessary, and a voltage at a connection-wire neutral point does not need to be measured. A magnetic gap length estimating device for estimating a magnetic gap length in an M-group N-phase rotating electric machine to be driven by an inverter includes: a voltage acquiring unit which acquires a no-load-induced line-to-line voltage induced under no load; and a magnetic gap estimating unit. The magnetic gap estimating unit includes: a spectrum analysis unit which converts the no-load-induced line-to-line voltage acquired by the voltage acquiring unit into amplitudes and phases for respective frequencies; a frequency analysis unit which extracts amplitudes and phases of a fundamental wave component and an Nth-order harmonic component of the no-load-induced line-to-line voltage; and an estimating-and-calculating unit which estimates the magnetic gap length.
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2.发明公开公开(公告)号：US20240053261A1
公开(公告)日：2024-02-15
申请号：US18269322
申请日：2021-12-15
IPC分类号： G01N21/3504 , G01N21/552
CPC分类号： G01N21/3504 , G01N21/554
摘要： The infrared absorber 1 is provided with a finely structured metal layer 2 which causes local surface plasmon resonance by absorption infrared light; a dielectric layer 3 under the finely structured metal layer, and a metal layer 4 under the dielectric layer 3. The dielectric layer 3 is stacked between the layers 2 and 4 and consists of an organic polymer material having a molecular bond whose vibration is excited by infrared absorption. Further, the gas sensor is provided with the infrared absorber as the light source and/or the photodetector.
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3.发明授权公开(公告)号：US11873604B2
公开(公告)日：2024-01-16
申请号：US16877715
申请日：2020-05-19
申请人： IHI CORPORATION , NATIONAL UNIVERSITY CORPORATION YOKOHAMA NATIONAL UNIVERSITY , JAPAN FINE CERAMICS CENTER
发明人： Takeshi Nakamura , Masahiro Kotani , Ken Goto , Akihiko Ito , Satoshi Kitaoka , Daisaku Yokoe , Tetsushi Matsuda
IPC分类号： D06M11/79 , D06M11/74 , C04B35/80 , C04B35/628
CPC分类号： D06M11/79 , C04B35/62849 , C04B35/62863 , C04B35/80 , D06M11/74
摘要： A high-temperature-steam-oxidation-resistive coated reinforcement fiber applicable to a fiber reinforced composite, is provided with: a reinforcement fiber; a coating layer covering the reinforcement fiber and including a rare-earth silicate; an exfoliative layer intervening in an interface between the coating layer and the reinforcement fiber; and a supplemental coating layer covering the reinforcement fiber, the exfoliative layer and the coating layer.
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公开(公告)号：US11656122B2
公开(公告)日：2023-05-23
申请号：US17310931
申请日：2020-02-26
申请人： National University Corporation YOKOHAMA National University , National Institute of Information and Communications Technology
发明人： Naoki Takeuchi , Shigehito Miki , Hirotaka Terai
IPC分类号： G01J1/44
CPC分类号： G01J1/44 , G01J2001/4446
摘要： A photon detection device according to an aspect of the present invention includes: a superconducting photon detector array in which a plurality of superconducting photon detectors (SPDs) are arranged; a plurality of first transmission lines connected to the plurality of SPDs and configured to transmit a detection current output from each of the plurality of SPDs; an address information generation circuit connected to the plurality of first transmission lines and configured to generate, based on the detection current, an address information signal that specifies a superconducting photon detector from which the detection current is output; a second transmission line magnetically coupled to all of the plurality of first transmission lines; and a time information generation circuit connected to the second transmission line and configured to generate, based on the detection current, a time information signal indicating a time at which a photon is incident on the plurality of superconductive photon detection SPDs.
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公开(公告)号：US11495885B2
公开(公告)日：2022-11-08
申请号：US17209352
申请日：2021-03-23
申请人： SHINKO ELECTRIC INDUSTRIES CO., LTD. , National University Corporation YOKOHAMA National University
发明人： Tomoharu Fujii , Takumi Ikeda , Hiroyuki Arai
摘要： A sensor module includes: a metal member having a recessed portion; a resin portion embedded within the recessed portion; a radiator provided within the resin portion and configured to emit radio waves; a wireless communication portion provided within the resin portion and connected to the radiator; and a sensor connected to the wireless communication portion, wherein the metal member is insulated from the radiator by the resin portion and functions as a parasitic element.
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公开(公告)号：US11486979B2
公开(公告)日：2022-11-01
申请号：US16618073
申请日：2018-05-22
发明人： Toshihiko Baba , Keisuke Kondo , Hiroshi Abe
IPC分类号： G01S7/4863 , G01S17/06 , G01S17/89
摘要： A light receiver array according to the present invention is constituted by array-aligning plural receivers having slow light waveguides of photonic crystals, and a LiDAR device according to the present invention is constituted by linearly arranging a light receiver array and a transmitter. An arranging relationship of plural receivers of the light receiver array is an array-like element formed by array-aligning plural receivers having the slow light waveguides of photonic crystals, and the array alignment is defined by alignment for defining a position relationship between the plural receivers constituting the light receiver array, and orientation for defining a direction of each receiver. A relationship p=λ/sin Δθr is satisfied between the alignment pitch p, wavelength λ of the reception light, and an arrival angle Δθr when a phase difference between reception lights received by waveguide ends of adjacent receivers is one wavelength. Such a constitution that the arrival angle Δθr is equal to a widening angle Δθt of radiation light is suitable.
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公开(公告)号：US20220171101A1
公开(公告)日：2022-06-02
申请号：US17290220
申请日：2019-10-17
发明人： Toshihiko BABA , Hiroshi ABE , Daichi AKIYAMA
摘要： A prism lens includes a prism lens body and at least one cylindrical lens. The prism lens body has a set of facing planes a mutual distance of which decreases or increases from one end to another end. The cylindrical lens is integral to at least one plane of the set of planes. The cylindrical lens is formed such that a cross section shape thereof at a plane perpendicular to a direction of a slope of a plane of the prism lens body having the cylindrical lens thereon with respect to the other plane of the set of planes has a certain curved shape to be convex against the plane having the cylindrical lens thereon.
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公开(公告)号：US20220127385A1
公开(公告)日：2022-04-28
申请号：US17427850
申请日：2019-02-12
摘要： A radical polymerization method may use a compound having a polycyclic aromatic skeleton and an endoperoxide compound having a polycyclic aromatic skeleton. An endoperoxide compound may have a polycyclic aromatic skeleton of formula (1), and a compound may have a polycyclic aromatic skeleton, which is a raw material of the endoperoxide compound: wherein R is a C1-10 alkyl group, an alkoxymethyl group having a C1-5 alkoxy group, a C6-10 aryl group, an alkylcarbonyl group having a C1-10 alkyl group, an arylcarbonyl group having a C6-20 aryl group, an alkyloxycarbonyl group having a C1-10 alkyl group, an aryloxycarbonyl group having a C6-10 aryl group, an alkyloxycarbonylmethyl group having a C1-12 alkyl group or an aryloxycarbonylmethyl group having a C6-12 aryl group.
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公开(公告)号：US20220034778A1
公开(公告)日：2022-02-03
申请号：US17278630
申请日：2020-02-25
申请人： KANAGAWA INSTITUTE OF INDUSTRIAL SCIENCE AND TECHNOLOGY , NATIONAL UNIVERSITY CORPORATION YOKOHAMA NATIONAL UNIVERSITY
发明人： Takuma Takahashi , Junichi Tatami , Hiroki Takaba
摘要： The purpose of the present invention is to achieve an in-situ observation of structural change in a shear field of slurry, i.e. an evaluation of a rheology property of slurry containing raw materials of a ceramic as a fluid sample, together with an in-situ observation of internal structure of the fluid sample in an evaluation process, and a clarification of internal structural change. An observation of an internal structure of a fluid sample 1 in an evaluation process of a rheology property by a rheometer 10 is achieved by generating an optical coherence tomographic image by performing an optical coherence tomography by irradiating a light in infrared region from outside of the rheometer 10 to the fluid sample 1, by inclining an optical axis of light in infrared region irradiating the fluid sample 1 for a predetermined angle within an angular range of 1 to 10 degrees with respect to a normal direction of an observation surface 1A of the fluid sample 1 by the optical coherence tomography imaging device 20, together with an evaluation of a rheology property of the fluid sample 1 containing components different in a refractive index by the rheometer 10.
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公开(公告)号：US11111433B2
公开(公告)日：2021-09-07
申请号：US15123552
申请日：2015-03-06
申请人： Kanagawa Academy of Science and Technology , National University Corporation YOKOHAMA National University
IPC分类号： C09K11/77 , C04B35/597 , C04B35/626 , C04B35/645 , C04B35/638 , C04B35/63 , C09K11/02 , C09K11/08 , H01L33/50
摘要： Provided are a transparent fluorescent sialon ceramic having fluorescence and optical transparency; and a method of producing the same. Such a transparent fluorescent sialon ceramic includes a sialon phosphor which contains a matrix formed of a silicon nitride compound represented by the formula Mx(Si,Al)y(N,O)z (here, M represents at least one selected from the group consisting of Li, alkaline earth metals, and rare earth metals, 0≤x/z
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