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公开(公告)号:US20240278913A1
公开(公告)日:2024-08-22
申请号:US18569965
申请日:2022-07-06
发明人: Daichi WADA , Atsushi OSEDO
CPC分类号: B64C39/026 , B64C3/56 , B64C15/02 , B64D45/00
摘要: This flight equipment (100) includes a thrust device (10) that provides thrust during flight, wings (20) that maintain an attitude during flight and change a direction of flight, a control unit that controls strength of an output from the thrust device (10), and an attachment and detachment unit (30) that can be worn or removed by a user (H).
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公开(公告)号:US20240233982A1
公开(公告)日:2024-07-11
申请号:US18556118
申请日:2022-04-20
发明人: Tomoya NOMURA , Yoichi ISO , Hiroyuki TAMAOKA , Shinatora CHO , Satoshi HOSODA
CPC分类号: H01B7/292 , H01B3/12 , H01B7/0266 , H01F5/06
摘要: The insulation covered conductive wire includes a conductive wire, a non-adherent, laterally wound insulation member and a non-adherent braided insulation member. The non-adherent, laterally wound insulation member covers an outer circumference of the conductive wire without adhering thereto and is formed by laterally winding a plurality of first ceramic fibers constituted from a plurality of first ceramic strands in an extending direction of the conductive wire. The first ceramic strands are not in contact with each other and do not adhere to each other. The non-adherent braided insulation member covers an outer circumference of the non-adherent, laterally wound insulation member without adhering thereto and is formed by braiding a plurality of second ceramic fibers constituted from a plurality of second ceramic strands. The second ceramic fibers are not in contact with each other and do not adhere to each other.
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公开(公告)号:US20240213983A1
公开(公告)日:2024-06-27
申请号:US18555494
申请日:2022-05-11
发明人: Kozo TAKEUCHI
IPC分类号: H03K19/003
CPC分类号: H03K19/00315
摘要: A complementary metal oxide semiconductor (CMOS) circuit includes a logical operation circuit formed on a substrate of a first conductivity type and including at least a combination of a first transistor of the first conductivity type having a first well of a second conductivity type different from the first conductivity type and a second transistor of the second conductivity type having a second well of the first conductivity type, a third transistor of the first conductivity type having a gate terminal connected to the second well, and a fourth transistor of the second conductivity type having a gate terminal connected to the first well.
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公开(公告)号:US20240213686A1
公开(公告)日:2024-06-27
申请号:US17907566
申请日:2022-03-10
发明人: Toshihiro SEZAI
CPC分类号: H01Q15/16 , H01Q1/28 , H01Q15/141
摘要: An antenna according to an embodiment of the present invention includes a primary radiator and a reflector mirror. The primary radiator radiates radio waves. The reflector mirror reflects radio waves radiated from the primary radiator, has same aperture diameter and height as a parabolic reflector mirror whose aperture diameter is equal to or less than 1.7 times a wavelength of the radio waves, and has a non-parabolic surface as a mirror surface shape.
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公开(公告)号:US12015361B2
公开(公告)日:2024-06-18
申请号:US17796682
申请日:2020-03-04
发明人: Kenji Fujiwara , Hisatoshi Fukumoto , Tomoki Takegami , Tetsuya Kojima , Akihiko Iwata , Masahiro Sugahara , Hiroshi Kobayashi , Mari Nishiyama , Akira Nishizawa
摘要: A motor control device includes: a step-down device including a DC-output power conversion device having a first mode for outputting first voltage and a second mode for outputting second voltage lower than the first voltage; a power supply device; and a control device, and controls a motor. When a flying object takes off, the control device controls the power conversion device in the first mode. When the control device judges that flight information which is one or both of information of a motor parameter obtained along with control for the motor and information of an environmental factor relevant to the flight altitude of satisfies a predetermined condition, or when the control device has received an mode signal for which the second mode is selected on the basis of the flight information during control for the motor, the control device controls the power conversion device in the second mode.
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公开(公告)号:US11913470B2
公开(公告)日:2024-02-27
申请号:US16754064
申请日:2018-08-29
发明人: Masashi Harada
CPC分类号: F04D29/403 , B64C11/18 , B64C29/00 , F04D19/002 , F04D29/384
摘要: [Object] To maximize static thrust of a ducted fan. [Solving Means] This ducted fan 1 includes a duct 10, a fan 20, a motor 30, a housing 40, and stators 50. The fan 20 includes a hub 21 disposed concentric with the duct 10 and four blades 22 arranged at equal intervals on the outer circumference of the hub 21. A chord length CL of the blade 22 gradually decreases toward a tip 22A from the root. In contrast, the chord length CL of the blade 22 increases to the tip 21B from a tip vicinity portion 22B.
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公开(公告)号:US20240049684A1
公开(公告)日:2024-02-15
申请号:US18231477
申请日:2023-08-08
申请人: TSUKADA MEDICAL RESEARCH CO., LTD. , JAPAN AEROSPACE EXPLORATION AGENCY , MITSUBISHI HEAVY INDUSTRIES, LTD.
发明人: Osamu TSUKADA , Akihiko NAKASA , Jumpei YOSHIDA , Hiroyasu MIZUNO , Dai SHIBA , Teruhiro SENKOJI , Yusuke HAGIWARA
IPC分类号: A01K7/02
CPC分类号: A01K7/02
摘要: A fluid supply apparatus that can eliminate the need for a power supply source, and store fluid efficiently. The apparatus may comprise a first balloon that is formed of an elastic body to be capable of storing the fluid, a second balloon that is formed of an elastic body to be capable of storing the fluid, and has a larger contraction force than a contraction force of the first balloon, a support member that supports both of the first balloon and the second balloon, and a casing that houses the first balloon and the second balloon, and defines inflation ranges of the first balloon and the second balloon, in which the support member has a flow path formed to permit fluid communication between an interior of the first balloon and an interior of the second balloon.
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公开(公告)号:US11827337B2
公开(公告)日:2023-11-28
申请号:US17043427
申请日:2019-03-29
发明人: Hamaki Inokuchi
摘要: [Object] To provide a technique for reducing the fluctuation of an airplane when an airplane enters turbulence without using prior information of two-dimensional or more airflow vectors.
[Solving Means] A system includes: a measurement unit 10 that emits electromagnetic waves toward a planned flight direction of the airplane, receives scattered waves of the emitted electromagnetic waves in atmosphere, and measures a remote wind speed in a radiation axis direction of the emitted electromagnetic waves based on a Doppler shift amount of a frequency between the emitted electromagnetic waves and the scattered electromagnetic waves; a spoiler 221 that controls a lift of the airplane; and a control calculation unit 30 that calculates an angle of attack with less lift inclination and calculates an angle of the spoiler 221 that controls the lift so that the lift does not change when it is determined that the airplane will receive a gust, based on a measurement result of the measurement unit 10.-
公开(公告)号:US20230365251A1
公开(公告)日:2023-11-16
申请号:US18245562
申请日:2021-09-22
发明人: Mitsuru KURITA , Hiroyuki ABE , Hidetoshi IIJIMA , Seigo KOGA
CPC分类号: B64C21/10 , F15D1/004 , F15D1/12 , B64C2230/26
摘要: [Object] To provide a riblet structure that increases resistance reducing performance and is easily manufacturable, and an object including such a structure on a surface thereof. [Solving Means] This riblet structure includes a plurality of wave-shaped riblets on a surface thereof, in which each of the riblets has a smaller peak height as an angle formed between a ridge line and a fluid flow direction becomes larger, a width between peak bases in a direction orthogonal to the fluid flow direction becomes smaller as the angle becomes larger, and an angle formed between a slope of a peak of the riblet and the surface at the peak base or a curvature at the peak base is identical at any position in a cross-sectional shape in the direction orthogonal to the fluid direction.
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公开(公告)号:US20230343317A1
公开(公告)日:2023-10-26
申请号:US18176388
申请日:2023-02-28
发明人: Tatsuhiko GOTO , Akihiko ENAMITO , Kenichiro NAGAI , Osamu NISHIMURA , Takahiro HIRUMA , Tetsuya DOI , Keiichiro IWANAGA
IPC分类号: G10K11/172 , G10K11/162
CPC分类号: G10K11/172 , G10K11/162 , G10K11/04
摘要: According to one embodiment, a sound absorption device includes: a first plate having a plurality of first holes; a second plate facing the first plate in a first direction; a first frame connecting the first plate and the second plate; and a third plate supported by the first frame so as to vibrate in the first direction within the first frame. A first space is formed in the first frame between the first plate and the third plate. A second space is formed in the first frame between the second plate and the third plate. The third plate includes a first portion and a second portion, the second portion having a higher vibration speed than the first portion.
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