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1. 发明授权

US12067963B2 Soundproof structure body 有权
公开(公告)号：US12067963B2
公开(公告)日：2024-08-20
申请号：US17232770
申请日：2021-04-16
申请人： FUJIFILM Corporation
发明人： Akihiko Ohtsu , Shinya Hakuta , Yoshihiro Sugawara , Shogo Yamazoe
IPC分类号： G10K11/172 , F24F13/24 , G10K11/16 , B60R13/08
CPC分类号： G10K11/172 , F24F13/24 , G10K11/161 , B60R13/08
摘要： In a soundproof structure body including a tubular tube body having an opening portion, and a resonance type soundproof structure, in which a phase difference θ, at an upstream of the resonance type soundproof structure, between a reflected wave in the resonance type soundproof structure and a reflected wave of a transmitted wave transmitted through the resonance type soundproof structure and reflected by the opening portion satisfies Inequation |θ−π|≤π/3 with respect to a resonance frequency of the resonance type soundproof structure. This soundproof structure body can effectively offset a reflected wave from a resonance type soundproof structure body by opening end reflection by appropriately specifying positions of the resonance type soundproof structure and the opening end portion of a duct, a tube line, or the like to improve an absorbance of a single resonance type soundproof structure.

2. 发明授权

US11795974B2 Blower with silencer and moving object with propeller 有权
公开(公告)号：US11795974B2
公开(公告)日：2023-10-24
申请号：US17887119
申请日：2022-08-12
申请人： FUJIFILM Corporation
发明人： Shinya Hakuta , Shogo Yamazoe , Yoshihiro Sugawara , Akihiko Ohtsu
IPC分类号： F04D29/66 , B64C39/02 , F04D19/00 , F04D29/54 , B64U30/20
CPC分类号： F04D29/665 , B64C39/024 , F04D19/002 , F04D29/542 , B64U30/20
摘要： A fan, and a silencer that silences a sound generated by the fan are provided, in which the silencer has a resonance characteristic, the silencer is disposed at a position connected to a sound field space of the sound generated by the fan, and a sum of an absorbance and a reflectivity of the silencer at a resonance frequency is 10% to 43% and a standardized half-width of the silencer is more than 0.05 and 0.25 or less.

3. 发明授权

US11741928B2 Soundproof structure 有权
公开(公告)号：US11741928B2
公开(公告)日：2023-08-29
申请号：US16929464
申请日：2020-07-15
申请人： FUJIFILM Corporation
发明人： Shinya Hakuta , Shogo Yamazoe
IPC分类号： G10K11/172 , G10K11/168
CPC分类号： G10K11/172 , G10K11/168
摘要： Provided is a soundproof structure that is small and light and can reduce a noise with a high specific frequency of a sound source at a plurality of frequencies at the same time. The soundproof structure has a membrane-like member, a plate-like member that is disposed to face the membrane-like member and in which at least one through-hole is formed, and a support that is formed of a rigid body and supports the plate-like member and the membrane-like member, in which the membrane-like member is supported by the support so as to perform membrane vibration, in which a rear surface space is provided between the membrane-like member and the plate-like member, in which a first space is provided on a side opposite to the rear surface space with the plate-like member sandwiched therebetween, in which the membrane-like member, the support, the plate-like member, and the rear surface space form a first sound absorbing portion that absorbs a sound by membrane vibration, in which the plate-like member, the support, and the first space form a second sound absorbing portion that absorbs a sound by Helmholtz resonance, and in which assuming that a fundamental frequency of membrane vibration of the membrane-like member in a case where the plate-like member is regarded as a rigid body in which the through-hole is not formed in the first sound absorbing portion is fm1 and a fundamental frequency of Helmholtz resonance of the second sound absorbing portion is fh1, fm1

4. 发明授权

US11332926B2 Soundproof structure 有权
公开(公告)号：US11332926B2
公开(公告)日：2022-05-17
申请号：US16284424
申请日：2019-02-25
申请人： FUJIFILM Corporation
发明人： Akihiko Ohtsu , Shinya Hakuta , Shogo Yamazoe
IPC分类号： E04B1/84 , G10K11/172 , E01F8/00 , G10K11/175 , G10K11/162 , E04B1/82
摘要： There is provided a soundproof structure capable of obtaining a sufficient soundproofing effect by suppressing the leaking of sound due to a diffraction phenomenon in a partition member used for soundproofing. A soundproof unit, which has a frame body having an opening portion and a film that is disposed so as to cover the opening portion and vibrates according to a sound incident on the film, and a partition member, to which one or more soundproof units are attached, are provided.

5. 发明授权

US10902835B2 Soundproof structure 有权
公开(公告)号：US10902835B2
公开(公告)日：2021-01-26
申请号：US16541403
申请日：2019-08-15
申请人： FUJIFILM Corporation
发明人： Akihiko Ohtsu , Shogo Yamazoe , Shinya Hakuta , Yoshihiro Sugawara
IPC分类号： G10K11/172 , G10K11/04 , E04B1/82 , E04B1/84 , G10K11/168 , G10K11/16 , G10K11/02
摘要： There is provided a soundproof structure that is small and has high soundproofing performance with respect to sound in a low frequency band.
At least one soundproof cell including a frame having a hole portion and a film fixed to the frame is provided. The film has a surface density distribution. Assuming that a shortest line segment length between high surface density regions and between the high surface density regions and end portions of the hole portions is Δd, a longest line segment length between the end portions of the hole portions is L [m], a Young's modulus of a material of the low surface density region is E [Gpa], an average film thickness of the low surface density region is h [m], and a maximum surface density and a minimum surface density of the film are ρmax and ρmin, a parameter X in the following Equation (1) satisfies the following Inequality (2). X=Eh2/(ρmax/ρmin)[N] (1) (Δd/L−0.025)/(0.06)[N]≤X[N]≤10 [N] (2)

6. 发明授权

US10866348B2 Heat ray-shielding material and architectural member, cage member, and side surface wall using the same 有权
公开(公告)号：US10866348B2
公开(公告)日：2020-12-15
申请号：US15805472
申请日：2017-11-07
申请人： FUJIFILM Corporation
发明人： Shinya Hakuta , Shogo Yamazoe , Tadashi Kasamatsu , Masayuki Naya , Hideki Yasuda , Ryo Matsuno
IPC分类号： G02B5/28 , B32B3/12 , E04B1/86 , E06B9/24 , B32B7/02 , B32B3/26 , G02B1/11 , E06B5/20
CPC分类号： G02B5/282 , B32B3/12 , B32B3/266 , B32B7/02 , E04B1/86 , E06B9/24 , G02B1/11 , B32B2307/30 , B32B2307/412 , E06B5/20 , E06B2009/2405 , E06B2009/2417 , E06B2009/2464
摘要： Provided are a heat ray-shielding material having a frame body including a plurality of frames having a cell structure and a plurality of films attached to some or all of the plurality of frames in the frame body, in which at least some of the plurality of films shield near-infrared light, and cell sizes in the plurality of frames are larger than visible light optical wavelengths, whereby the heat ray-shielding material is lightweight, capable of selectively shielding heat rays, that is, near-infrared rays, can be applied to a variety of uses, and can be independently used as movable members, easily removable members, and members having a collapsible structure, an architectural member, a cage member, and a side surface wall.

7. 发明申请

US20200005757A1 SOUNDPROOF STRUCTURE 审中-公开
公开(公告)号：US20200005757A1
公开(公告)日：2020-01-02
申请号：US16541403
申请日：2019-08-15
申请人： FUJIFILM Corporation
发明人： Akihiko OHTSU , Shogo Yamazoe , Shinya Hakuta , Yoshihiro Sugawara
IPC分类号： G10K11/172 , G10K11/168 , E04B1/84
摘要： There is provided a soundproof structure that is small and has high soundproofing performance with respect to sound in a low frequency band.At least one soundproof cell including a frame having a hole portion and a film fixed to the frame is provided. The film has a surface density distribution. Assuming that a shortest line segment length between high surface density regions and between the high surface density regions and end portions of the hole portions is Δd, a longest line segment length between the end portions of the hole portions is L [m], a Young's modulus of a material of the low surface density region is E [Gpa], an average film thickness of the low surface density region is h [m], and a maximum surface density and a minimum surface density of the film are ρmax and ρmin, a parameter X in the following Equation (1) satisfies the following Inequality (2). X=Eh2/(ρmax/ρmin) [N] (1) (Δd/L−0.025)/(0.06) [N]≤X [N]≤10 [N] (2)

8. 发明授权

US10431196B2 Soundproof structure and adjustment method of soundproof structure 有权
公开(公告)号：US10431196B2
公开(公告)日：2019-10-01
申请号：US16124821
申请日：2018-09-07
申请人： FUJIFILM Corporation
发明人： Masayuki Naya , Shinya Hakuta , Shogo Yamazoe
IPC分类号： G10K11/16 , E04B1/82 , G10K11/162 , B60R13/08 , B32B5/26 , B32B37/12 , E04B1/84 , E04B1/86 , E04B1/99 , G10K11/172
摘要： There is provided a soundproof structure that can selectively block sound having a specific frequency emitted from equipment, automobiles, and general households and can change the cutoff frequency of the sound in accordance with a change in the frequency of sound to be blocked. The above problem is solved by providing a laminated film, in which two or more films each including one or more holes drilled therein are laminated, and two rigid frames, which fix the laminated film so as to be interposed from both sides of the laminated film, and making at least parts of the one or more holes in the respective films of the laminated film overlap each other.

9. 发明授权

US12078360B2 Range hood 有权
公开(公告)号：US12078360B2
公开(公告)日：2024-09-03
申请号：US16895544
申请日：2020-06-08
申请人： FUJIFILM Corporation
发明人： Shogo Yamazoe , Yoshihiro Sugawara
IPC分类号： F24C15/20 , F24F13/24
CPC分类号： F24C15/20 , F24F13/24 , F24F2013/242
摘要： Provided is a range hood that is small, that can reliably provide the flow path for waste smoke, that has high soundproof performance, and that allows oil stains and the like to be easily removed. The range hood includes: a suction portion that has a suction opening and that sucks air from below in a vertical direction; a connection opening connected to the suction portion; a duct portion that conveys air sucked from the connection opening and discharges the air from a discharge opening to an outside; an air blowing mechanism that is disposed in the duct portion and that moves air in the duct portion to the discharge opening; and a flow regulation plate that is disposed in the suction opening of the suction portion or is disposed so as to cover a part of the suction opening. A distance between the suction portion and the flow regulation plate is 110 mm or smaller. The range hood has at least one soundproof structure on a surface of the flow regulation plate on the suction portion side between the flow regulation plate and the suction portion.

10. 发明授权

US11869470B2 Acoustic system 有权
公开(公告)号：US11869470B2
公开(公告)日：2024-01-09
申请号：US17232835
申请日：2021-04-16
申请人： FUJIFILM Corporation
发明人： Shinya Hakuta , Yoshihiro Sugawara , Akihiko Ohtsu , Shogo Yamazoe
IPC分类号： G10K11/172 , F24F13/24 , G10K11/16
CPC分类号： G10K11/161 , F24F13/24 , G10K11/172
摘要： An acoustic system includes a duct that has a function of causing a fluid to flow therein and has a tubular shape, an internal sound source that is disposed inside the duct on an upstream side or at an outer peripheral portion of the duct, which communicates with an inside of the duct on the upstream side, or an external sound source that is on an outside from an end portion of the duct, and a membrane-shaped member that is formed as a part of a wall of the duct and vibrates in response to sound. A structure including the membrane-shaped member and a rear surface closed space thereof causes acoustic resonance to occur, transmits the acoustic resonance from the sound source into the duct, and suppresses sound radiated from the other end portion of the duct on a downstream side. The external sound source is at a distance within a wavelength at a frequency of the acoustic resonance on the outside from the end portion of the duct. In the acoustic system, as a small membrane-type resonance structure is disposed in a flow passage horizontal direction, wind does not directly hit a membrane surface perpendicularly, and since the acoustic system does not have a through hole or a hole, wind noise can be eliminated.

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