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61.发明公开公开(公告)号：US20230193075A1
公开(公告)日：2023-06-22
申请号：US17916496
申请日：2021-03-05
Applicant: KANEKA CORPORATION , JAPAN AEROSPACE EXPLORATION AGENCY
Inventor： Takefumi Furuta , Yoshio Furukawa , Rikio Yokota , Yuichi Ishida
IPC: C09D177/00 , C09D7/20 , C08J5/24 , C08J5/04
CPC classification number: C09D177/00 , C08J5/04 , C08J5/24 , C09D7/20
Abstract: The present invention provides an amide acid oligomer which has specific composition and which is capable of providing a cured product having excellent physical properties, in particular, an excellent glass transition temperature, etc.
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公开(公告)号：US11679901B2
公开(公告)日：2023-06-20
申请号：US16618205
申请日：2018-03-30
Applicant: JAPAN AEROSPACE EXPLORATION AGENCY
Inventor： Junichiro Kawaguchi , Osamu Mori , Toshihiro Chujo , Hirokazu Ishida
IPC: B64G1/24 , G02F1/1334 , G02F1/1335 , G02F1/137
CPC classification number: B64G1/244 , G02F1/137 , G02F1/1334 , G02F1/133504
Abstract: To provide a sheet-like optical device capable of selectively emitting light whose optical path has a changed orientation.
An optical device includes a first sheet and a second sheet. The first sheet is configured to be electrically switchable between a first state in which the first sheet extends along an in-plane direction orthogonal to a thickness direction and has transparency in the thickness direction, and a second state in which the first sheet has lower transparency in the thickness direction than the transparency in the first state. The second sheet has a prism surface on which an inclined surface inclined with respect to the in-plane direction is arranged along the in-plane direction, the second sheet facing the first sheet in the thickness direction.-
公开(公告)号：US20230084323A1
公开(公告)日：2023-03-16
申请号：US17798359
申请日：2020-12-22
Applicant: Japan Aerospace Exploration Agency
Inventor： Yoshitsugu SONE , Motohiko SATO
IPC: H01M8/1004 , H01M8/04746 , H01M8/04701 , H01M8/04858
Abstract: A method of controlling a fuel cell device includes: a step of determining whether impedance between a fuel electrode and an oxidant electrode is greater than a predetermined threshold during a steady operation of the fuel cell device; a step of decreasing a flow rate of a gas circulating via a circulation passage connecting a gas introduction passage of the gas supply unit to a gas discharge passage when the impedance is greater than the predetermined threshold; a step of measuring the voltage between the fuel electrode and the oxidant electrode when the impedance is equal to or less than the predetermined threshold, and determining whether the voltage is equal to or less than a first predetermined threshold; and a step of increasing the flow rate of the gas circulating via the circulation passage when the voltage is equal to or less than the first predetermined threshold.
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公开(公告)号：US20230071252A1
公开(公告)日：2023-03-09
申请号：US17760199
申请日：2021-01-29
Applicant: KUREHA CORPORATION , JAPAN AEROSPACE EXPLORATION AGENCY
Inventor： Masahiro YAMAZAKI , Kayoko ONIZAWA , Keita TAKAMURA , Eiji MIYAZAKI , Keiichi YANAGASE , Aki GOTO
Abstract: An antibacterial molded article that can further increase antibacterial performance. The present invention for achieving the above object is related to an antibacterial molded article including a resin molded article. The resin molded article has an antibacterial area on a surface of the resin molded article, the antibacterial area having a prominent protrusion ratio of 3% or greater and 25% or less. Alternatively, the resin molded article has an antibacterial area on a surface of the resin molded article, the antibacterial area having: a maximum height of profile defined by JIS B 0601 (2013) of 100 nm or greater and less than 500 nm, and a plurality of capture protrusions having a height of not less than half the maximum height of profile (Rz), in which an average distance between the plurality of capture protrusions is 1.5 μm or greater and 7 μm or less.
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公开(公告)号：US20230045598A1
公开(公告)日：2023-02-09
申请号：US17784246
申请日：2020-06-04
Applicant: JAPAN AEROSPACE EXPLORATION AGENCY
Inventor： Takashi MAEDA , Naoya TOMII , Akihisa UEMATSU , Kazuya INAOKA , Noriyuki KAWAGUCHI
Abstract: A phased-array antenna device with a long operating life without mechanical parts, has a high spatial resolution, and realizes microwave observation of broadband and highfrequency resolution. The phased-array antenna device performs direct A/D conversion through a BPF on an antenna analog signal amplified by an amplifier. Then, the device performs a second cross-spectrum calculation after conversion into complex frequency data through FFT. To detect a weak electromagnetic wave, the device repeatedly performs a second FFT over a long period and lastly performs integration.
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Patent Agency Ranking
66.发明申请公开(公告)号：US20230022975A1
公开(公告)日：2023-01-26
申请号：US17791716
申请日：2021-01-29
Applicant: JAPAN AEROSPACE EXPLORATION AGENCY
Inventor： Eiichi YOSHIKAWA
IPC: G01W1/10
Abstract: According to an embodiment, an information processing device includes an acquirer configured to acquire at least one type of data within meteorological observation data indicating weather at a target location observed at each of a plurality of observation times and meteorological prediction data indicating the weather at the target location predicted using a meteorological prediction model, a deriver configured to derive an index value indicating a threat level of lightning of the target location at each of the plurality of observation times on the basis of the meteorological observation data and the like acquired by the acquirer, and a predictor configured to input the index value derived by the deriver to a model for outputting a future index value when a past or present index value is input and predict a threat of lightning of the target location at a future time later than the observation time on the basis of an output result of the model to which the index value has been input.
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公开(公告)号：US11555879B2
公开(公告)日：2023-01-17
申请号：US16497249
申请日：2018-03-22
Applicant: JAPAN AEROSPACE EXPLORATION AGENCY
Inventor： Toshihiro Sezai
Abstract: A signal processing unit performs, on the basis of a received electric field signal from an antenna by which a beam is scanned within a predetermined azimuthal angle and a signal of an azimuthal angle of the scanned beam, a Fourier transform on a distribution function of the received electric field signal into a frequency domain of the azimuthal angle, divides a signal according to a first spectral function by a signal according to a second spectral function, the first spectral function being obtained by performing the Fourier transform, the second spectral function being obtained by performing a Fourier transform on an antenna pattern of the antenna into a frequency domain of the azimuthal angle, and subjects the divided signal to fitting by using Prony's method with exponential functions including real parts and imaginary parts in arguments.
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公开(公告)号：US11490018B2
公开(公告)日：2022-11-01
申请号：US16621786
申请日：2018-06-27
Applicant: Japan Aerospace Exploration Agency
Inventor： Masayuki Goto , Shinji Mitani , Shuhei Shigeto , Nobutaka Tanishima , Toru Yamamoto
Abstract: A mobile image pickup device includes an imaging unit (20), an acceleration and angular velocity detecting unit, a processing unit that processes acceleration and angular velocity information which is detected by the acceleration and angular velocity detecting unit, a reaction wheel that rotates based on a command value which is calculated by the processing unit, and a housing (10) that accommodates the imaging unit (20), the acceleration and angular velocity detecting unit, the processing unit, and the reaction wheel therein.
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公开(公告)号：US20220341375A1
公开(公告)日：2022-10-27
申请号：US17753709
申请日：2021-02-02
Applicant: JAPAN AEROSPACE EXPLORATION AGENCY
Inventor： Kaname KAWATSU , Ai NOUMI , Naoki ISHIHAMA , Taiichi NAGATA
Abstract: Provided is a failure diagnostic system for a spacecraft liquid propulsion system that enables to accurately diagnose a failure in a spacecraft and a failure diagnostic method for the spacecraft liquid propulsion system. This spacecraft liquid propulsion system includes a plurality of thrusters, and a supply pipe connected to the thrusters. This system includes a pressure sensor that detects an inner pressure of the supply pipe as time-series data, a frequency spectrum conversion unit that converts the time-series data into data of a frequency spectrum, a storage unit that stores data of a frequency spectrum generated based on an analytical model by computer simulation or a test result of a testing device as a data set, a comparator that compares the data set with the data of the frequency spectrum generated by the frequency spectrum conversion unit, and a determining unit that determines a failure in any one of the plurality of thrusters according to a comparison result of the comparator.
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公开(公告)号：US20220331460A1
公开(公告)日：2022-10-20
申请号：US17754338
申请日：2020-10-01
Inventor： Shunsuke ABE , Kazuhiko SHIMIZU , Kayoko ONIZAWA , Masahiro YAMAZAKI , Aki GOTO , Keiichi YANAGASE , Eiji MIYAZAKI , Yusuke UCHIUMI , Eri FUKUI
Abstract: The present invention is to provide an antibacterial molded article that can increase options for the material and shape of the molded article, and a method for manufacturing the same. The object is achieved by an antibacterial molded article containing a plastic molded article, the plastic molded article having a rough region having an arithmetic average roughness Ra of a roughness curve in accordance with JIS B 0601 (2013) of 0.14 μm or greater and 0.72 μm or less provided on a surface with which bacteria can come into contact.
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