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公开(公告)号：US20240255177A1
公开(公告)日：2024-08-01
申请号：US18631524
申请日：2024-04-10
Applicant: FUJIFILM Corporation
Inventor： Shogo YAMAZOE , Yuichiro ITAI , Shinya HAKUTA , Yoshihiro SUGAWARA , Tomohiro TAKAHASHI
IPC: F24F13/24
CPC classification number: F24F13/24 , F24F2013/242
Abstract: Provided is a ventilation system in which a silencer has a compact structure, a silencing property is ensured, and a pressure loss in the silencer is suppressed.
The ventilation system of the present invention has a silencer disposed at an intermediate position of a ventilation path. In the silencer, a sound absorbing member surrounds a housing in which an in-housing ventilation path extending from an inlet opening to an outlet opening is provided. In addition, an upstream tube body that forms an upstream ventilation path on an upstream side of an inlet opening, a downstream tube body that forms a downstream ventilation path on a downstream side of an outlet opening, a tubular first connecting portion that is connected to the upstream tube body and that links the upstream ventilation path and the inlet opening to each other, and a tubular second connecting portion that is connected to the downstream tube body and that links the downstream ventilation path and the outlet opening to each other are provided. Each of the first connecting portion and the second connecting portion includes an opening portion therein. The closer to the in-housing ventilation path, the smaller a size of a cross section of the opening portion of at least one connecting portion.-
公开(公告)号：US20240183576A1
公开(公告)日：2024-06-06
申请号：US18442971
申请日：2024-02-15
Applicant: FUJIFILM Corporation
Inventor： Shinya HAKUTA , Shogo YAMAZOE , Yoshihiro SUGAWARA , Yuichiro ITAI
IPC: F24F13/24
CPC classification number: F24F13/24 , F24F2013/242 , F24F2013/245
Abstract: A silencer for a ventilation passage effectively deadens sound having a broad frequency band while having a compact structure.
A silencer for a ventilation passage according to an embodiment of the present invention is a silencer for a ventilation passage that includes a housing and deadens sound in a ventilation passage, and an internal space of the housing forms a part of the ventilation passage. The silencer for a ventilation passage includes an inlet opening that is positioned on one end side of a part of the ventilation passage in the housing, an outlet opening that is positioned on the other end side of a part of the ventilation passage in the housing, a sound absorbing member that is housed in the housing, and a vibration portion that is provided on the housing and reduces sound passing through the ventilation passage.-
公开(公告)号：US20240011652A1
公开(公告)日：2024-01-11
申请号：US18469657
申请日：2023-09-19
Applicant: FUJIFILM Corporation
Inventor： Shinya HAKUTA , Shogo YAMAZOE , Yoshihiro SUGAWARA , Yuichiro ITAI
Abstract: To effectively reduce a low-frequency noise resulting from vibration of a peripheral wall of a ventilation path.
The present invention provides a ventilation path with a soundproof structure including a ventilation path that includes an open end and a soundproof structure against a sound emitted from the ventilation path. The soundproof structure includes a vibration suppression portion that is provided on a surface of a peripheral wall surrounding the ventilation path, and assuming that m and n are natural numbers of 4 or less, λ is a wavelength of a sound of which a frequency coincides with an m-th natural frequency of the peripheral wall alone, and L1 is a distance from the open end on a virtual line extending through a central position of a cross section of each portion of the ventilation path, the cross section intersecting a direction in which the ventilation path extends, the vibration suppression portion is present in an area at which a distance L1 is equal to or greater than (4n−3)/×λ/8 and equal to or smaller than (4n−1)×λ/8.-
公开(公告)号：US20220389938A1
公开(公告)日：2022-12-08
申请号：US17886556
申请日：2022-08-12
Applicant: FUJIFILM Corporation
Inventor： Shinya HAKUTA , Shogo YAMAZOE , Yoshihiro SUGAWARA , Akihiko OHTSU
Abstract: An axial fan that includes a casing having an inner space that penetrates in one direction, and a rotor blade disposed in the inner space of the casing, and a silencer that is disposed at a position connected to the inner space of the axial fan are provided, in which the axial fan has a sound pressure distribution having a position at which a sound pressure is high and a position at which the sound pressure is low in a circumferential direction in the inner space during driving, and the silencer is disposed at the position of the axial fan in the circumferential direction at which the sound pressure is high and is not disposed at the position at which the sound pressure is low.
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公开(公告)号：US20210233506A1
公开(公告)日：2021-07-29
申请号：US17232770
申请日：2021-04-16
Applicant: FUJIFILM Corporation
Inventor： Akihiko OHTSU , Shinya HAKUTA , Yoshihiro SUGAWARA , Shogo YAMAZOE
IPC: G10K11/172 , G10K11/16 , F24F13/24
Abstract: 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.
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Patent Agency Ranking
公开(公告)号：US20190362699A1
公开(公告)日：2019-11-28
申请号：US16534429
申请日：2019-08-07
Applicant: FUJIFILM Corporation
Inventor： Shinya HAKUTA , Shogo YAMAZOE , Akihiko OHTSU
IPC: G10K11/172 , E04B1/84 , G10K11/162
Abstract: Provided are a soundproof structure and an opening structure which is easy to be manufactured, has a light weight, and is capable of absorbing sound in a wide frequency bandwidth. The soundproof structure includes a tubular member and a film member arranged so as to block a hollow portion of the tubular member. Assuming that a wavelength corresponding to a resonance frequency in a single film vibration element of the film member is λa, lengths from a position at which the film member is attached to two opened end surfaces of the tubular member are L1 and L2, an opened end correction length is δ, and n is an integer of 0 or more, at least one of (λa/4−λa/8)+n×λa/2−δ≤L1≤(λa/4+λa/8)+n×λa/2−δ or (λa/4−λa/8)+n×λa/2−δ≤L2≤(λa/4+λa/8)+n×λa/2−δ is satisfied.
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7.发明申请公开(公告)号：US20150198536A1
公开(公告)日：2015-07-16
申请号：US14668584
申请日：2015-03-25
Applicant: FUJIFILM Corporation
Inventor： Masayuki NAYA , Shogo YAMAZOE
CPC classification number: G01N21/658 , G01N21/01 , G01N21/6402 , G01N2201/02 , G01N2201/06113
Abstract: An optical electric field enhancing device is used with a measuring method which includes two-dimensionally scanning a surface in in-plane direction of the surface to detect, from the rear surface side of the device, signal light emitted from each scanning point when excitation light is applied, and obtaining a two-dimensional signal image on the surface based on the detected signal light. The device includes a transparent substrate, a marker pattern directly formed on the transparent substrate and extending in a direction non-parallel to the main scanning direction of the two-dimensional scanning, and fine uneven structures formed on the marker pattern and the transparent substrate where at least the surface is made of a metal film.
Abstract translation: 使用光电场增强装置，该测量方法包括二维地扫描表面的面内方向的表面，从装置的背面检测从激发光的每个扫描点发出的信号光 并且基于检测到的信号光在表面上获得二维信号图像。 该装置包括透明基板，直接形成在透明基板上并且在与二维扫描的主扫描方向不平行的方向上延伸的标记图案，以及形成在标记图案和透明基板上的微细凹凸结构， 至少表面由金属膜制成。
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公开(公告)号：US20150155152A1
公开(公告)日：2015-06-04
申请号：US14619410
申请日：2015-02-11
Applicant: FUJIFILM Corporation
Inventor： Shogo YAMAZOE , Masayuki NAYA
CPC classification number: H01J49/164 , H01J49/40
Abstract: The mass spectrometry apparatus is constituted by a sample plate to which a measurement target substance is adhered, the sample plate being transparent to a laser beam; a support mount on which the sample plate is placed, a part of the support mount being a light transmitting portion that transmits a laser beam; a light irradiation unit that exposes the measurement target substance to a laser beam from the back side of the sample plate and is provided with a laser source that outputs a laser beam, a collecting lens that collects a laser beam onto the measurement target substance, and an aberration-correction mechanism that corrects aberration which occurs when the laser beams are collected; and a detector that detects the measurement target substance which has been desorbed from the surface of the sample plate and ionized, by being irradiated with a laser beam.
Abstract translation: 所述质谱装置由附着有测定对象物质的样品板构成，所述样品板对于激光束是透明的; 支架，其上放置有样品板，支撑座的一部分是透光激光束的透光部; 一个光照射单元，它将测量目标物质从样品板的背面暴露于激光束，并且设置有一个激光源，该激光源将激光束，将激光束收集在测量目标物质上的聚光透镜，以及 校正在收集激光束时发生的像差的像差校正机构; 以及检测器，其通过用激光照射来检测已经从样品板的表面解吸并离子化的测量对象物质。
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公开(公告)号：US20240426514A1
公开(公告)日：2024-12-26
申请号：US18829482
申请日：2024-09-10
Applicant: FUJIFILM Corporation
Inventor： Shinya Hakuta , Shogo YAMAZOE , Yuichiro ITAI , Yoshihiro SUGAWARA
IPC: F24F13/24
Abstract: There is provided a ventilation-type silencer that uses a porous sound absorbing material and has high sound deadening performance in a low frequency band. A ventilation-type silencer includes an inlet-side vent pipe, an expansion section that communicates with the inlet-side vent pipe and has a cross-sectional area larger than a cross-sectional area of the inlet-side vent pipe, and an outlet-side vent pipe that communicates with the expansion section and has a cross-sectional area smaller than the cross-sectional area of the expansion section. The ventilation-type silencer includes a porous sound absorbing material that is disposed in at least a part of the expansion section, a back space that is a space in the expansion section formed on a side of the porous sound absorbing material opposite to a flow channel connecting the inlet-side vent pipe and the outlet-side vent pipe, and a partition member that partitions the back space. A region partitioned by the partition member forms an acoustic resonator, and the acoustic resonator is acoustically connected to the flow channel.
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公开(公告)号：US20200349914A1
公开(公告)日：2020-11-05
申请号：US16929464
申请日：2020-07-15
Applicant: FUJIFILM Corporation
Inventor： Shinya HAKUTA , Shogo YAMAZOE
IPC: G10K11/172 , G10K11/168
Abstract: 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
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