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公开(公告)号：US20240342398A1
公开(公告)日：2024-10-17
申请号：US18753520
申请日：2024-06-25
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Kenghua HSING , Miki IKEDA , Hiroaki WADA , Yohei KAWASAKI , Susumu TAKEUCHI
IPC: A61M11/00
CPC classification number: A61M11/005 , A61M2205/0294
Abstract: A nebulizer includes a case and a nozzle. The case has an inner wall which defines an internal space. The nozzle atomizes a liquid stored in the internal space. The case includes a discharge outlet for guiding the atomized liquid to the outside of the case. The nozzle has a gas hole and a liquid hole. The gas hole ejects a gas. The liquid hole is located adjacent to the gas hole and ejects the liquid. In the internal space, the case does not have any path formed of a straight line which extends from the gas hole to the discharge outlet by passing only through the internal space.
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公开(公告)号：US20210001069A1
公开(公告)日：2021-01-07
申请号：US17023914
申请日：2020-09-17
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Yuzo HIGASHIYAMA , Hiroaki WADA , Shigeru TSUJI
Abstract: A continuous positive airway pressure (CPAP) apparatus includes: a first unit including a first housing provided with a first flow path that connects a first inlet port and a first outlet port and in which an air blower is provided; and a second unit including a second housing provided with a second flow path that connects a second inlet port and a second outlet port. The first flow path between the first inlet port and the air blower includes a first silencer. The second flow path includes a second silencer. In a first use state where the second unit is attached to the first unit, the second outlet port is connected to the first inlet port. In a second use state where the second unit is not attached to the first unit, the first inlet port is opened to the outside.
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公开(公告)号：US20200318630A1
公开(公告)日：2020-10-08
申请号：US16907475
申请日：2020-06-22
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Daisuke KONDO , Hiroaki WADA , Nobuhira TANAKA , Hiroyuki YOKOI , Hiroki ACHIWA , Hiroshi TAKEMURA
Abstract: A pump includes a housing, a first vibrating body, a second vibrating body, and a peripheral wall portion that define a pump chamber, and a driving body. The housing has a first wall portion opposed to the first vibrating body and a second wall portion. The first wall portion includes a first concave portion that opens toward the first vibrating body and opposed to a central portion of the first vibrating body and a first circumferential portion adjacent to the first concave portion. A first chamber includes a first wide portion defined by the first concave portion and the first vibrating body, and a first narrow portion defined by the first circumferential portion and the first vibrating body. The first narrow portion overlaps with at least part of the first vibrating body.
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公开(公告)号：US20190282771A1
公开(公告)日：2019-09-19
申请号：US16433073
申请日：2019-06-06
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Yuzo HIGASHIYAMA , Hiroaki WADA
Abstract: A fluid control device includes a case including an internal space that is partitioned by a partition wall into an air blowing chamber and a control chamber. A dividing wall is disposed inside the air blowing chamber to partition an internal space of the air blowing chamber into a first air blowing chamber and a second air blowing chamber. A fan unit is housed in the second air blowing chamber. A differential pressure sensor senses a differential pressure between a pressure inside the first air blowing chamber and a pressure inside the second air blowing chamber. A controller controls a fan based on the sensed differential pressure.
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公开(公告)号：US20240285886A1
公开(公告)日：2024-08-29
申请号：US18655658
申请日：2024-05-06
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Hiroaki WADA , Yuzo HIGASHIYAMA
CPC classification number: A61M16/0066 , A61M16/106 , A61M2205/10 , A61M2205/3331 , A61M2205/3334 , A61M2205/42 , A61M2205/52
Abstract: A CPAP device includes a housing. A suction port is provided in a top plate portion of a casing of the air blower. The air blower chamber has a facing wall portion facing the top plate portion with a distance therebetween. A wall portion defining the air blower chamber is provided with an introduction port for introducing external air. In a space between the facing wall portion and the top plate portion, a flow adjustment portion that partitions the space into flow paths arranged side by side around a rotation axis is provided. An outer end portion and an inner end portion of each of the flow paths in a direction orthogonal to the rotation axis are respectively constituted of a first open end and a second open end, the first open end and the second open end being open along the direction orthogonal to the rotation axis.
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Patent Agency Ranking
公开(公告)号：US20240082520A1
公开(公告)日：2024-03-14
申请号：US18510999
申请日：2023-11-16
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Shigeru TSUJI , Takanori HAYASHI , Hiroaki WADA
IPC: A61M16/00
CPC classification number: A61M16/024 , A61M16/0003 , A61M16/0066 , A61M2016/0027 , A61M2016/003 , A61M2205/103 , A61M2205/3334 , A61M2205/502
Abstract: A CPAP apparatus according to the present disclosure includes a housing, a hose whose one end communicates with a connection portion, a fan configured to expel air flowing in from an intake port, from another end of the hose, a motor and a motor driving unit configured to rotationally drive the fan, a control unit configured to control the motor driving unit, and a flow rate sensor. The control unit includes a command generation unit configured to generate a command value of a rotation number of the fan such that a pressure to be expelled from the other end of the hose becomes a target pressure, and a command correction unit configured to correct the command value based on a flow rate value obtained by the flow rate sensor.
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公开(公告)号：US20210077760A1
公开(公告)日：2021-03-18
申请号：US17108166
申请日：2020-12-01
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Hiroaki WADA , Yuzo HIGASHIYAMA
Abstract: A fan unit includes a fan case and a fan. The fan case has an intake port and a discharge port. The fan is provided inside the fan case and has a holding plate having a first surface and being rotatably supported; and a plurality of blade members provided upright on the first surface. The fan unit includes a first passage that is connected to the intake port and is defined by an inner surface of the fan case, the first surface of the holding plate, and two adjacent blades; and a second passage that is on a second surface side of the holding plate and is connected to the discharge port. An outer circumferential end section of the holding plate is positioned progressively lower towards the outside in the radial direction and has a skirt shape having a sharp gradient.
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公开(公告)号：US20210008310A1
公开(公告)日：2021-01-14
申请号：US17035898
申请日：2020-09-29
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Hiroaki WADA , Yuzo HIGASHIYAMA
IPC: A61M16/00
Abstract: A CPAP device includes a housing. A suction port is provided in a top plate portion of a casing of the air blower. The air blower chamber has a facing wall portion facing the top plate portion with a distance therebetween. A wall portion defining the air blower chamber is provided with an introduction port for introducing external air. In a space between the facing wall portion and the top plate portion, a flow adjustment portion that partitions the space into flow paths arranged side by side around a rotation axis is provided. An outer end portion and an inner end portion of each of the flow paths in a direction orthogonal to the rotation axis are respectively constituted of a first open end and a second open end, the first open end and the second open end being open along the direction orthogonal to the rotation axis.
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公开(公告)号：US20180187672A1
公开(公告)日：2018-07-05
申请号：US15906282
申请日：2018-02-27
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Nobuhira TANAKA , Daisuke KONDO , Hiroaki WADA
IPC: F04B45/047
CPC classification number: F04B45/047 , F04B45/04
Abstract: A piezoelectric blower includes a valve unit, a pump unit, a controller, and an outer housing. The valve unit includes a plurality of ejection holes and film holes. The pump unit includes a plurality of communication holes and suction holes. The outer housing covers the valve unit and the pump unit with a gap between the outer housing and each of the valve unit and the pump unit. Thus, the outer housing forms vent passages between the outer housing and the valve unit and between the outer housing and the pump unit. The inlet communicates with the vent passage. The outlet communicates with the vent passage. At least one of the inlet and the outlet is displaced from a central axis of the pump chamber. The ejection holes, the film holes, the communication holes, and the suction holes are symmetric about the central axis of the pump chamber
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公开(公告)号：US20230414883A1
公开(公告)日：2023-12-28
申请号：US18462601
申请日：2023-09-07
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Miki IKEDA , Nobuhira TANAKA , Hiroaki WADA
IPC: A61M11/04
CPC classification number: A61M11/042
Abstract: A nebulizer includes a housing and a mouthpiece. The housing surrounds a pump for spraying a liquid reagent out of the nebulizer. An opening is formed in the housing. The inside and the outside of the housing communicate with each other through the opening. Arrow indicates an air flow from the opening to an inlet of the pump. The air flow indicated by arrow passes by the outer surface of the pump
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