公开(公告)号：US20210276033A1

公开(公告)日：2021-09-09

申请号：US17330473

申请日：2021-05-26

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Miki IKEDA ,  Kiyoshi KURIHARA ,  Susumu TAKEUCHI ,  Kenichiro KAWAMURA ,  Kenjiro OKAGUCHI ,  Masaaki FUJISAKI ,  Yohei Kawasaki ,  Hiroaki WADA

IPC: B05B17/06 ,  B05B7/24

Abstract: An atomizer includes a first piezoelectric pump, a first flow path, a reservoir part, and a second flow path. The first piezoelectric pump ejects gas through an outlet. The first flow path has a first end and a second end. The first end of the first flow path is connected to the outlet of the first piezoelectric pump. A connection point is provided between the first and second ends of the first flow path. Liquid is to be stored in the reservoir part. The second flow path has a first end and a second end. The first end of the second flow path is connected to the liquid reservoir part. The second end of the second flow path is connected to the connection point.

公开(公告)号：US20210164464A1

公开(公告)日：2021-06-03

申请号：US17170171

申请日：2021-02-08

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Nobuhira TANAKA ,  Daisuke KONDO ,  Hiroaki WADA

IPC: F04B45/047

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.

公开(公告)号：US20200038606A1

公开(公告)日：2020-02-06

申请号：US16595600

申请日：2019-10-08

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Hiroaki WADA ,  Atsuhiko HIRATA

IPC: A61M16/00 ,  F04D29/66 ,  A61M16/06

Abstract: An air-blowing device 10A includes an air blower 50 and a housing 20 that includes an intake hole 41a into which a fluid flows as a result of the air blower 50 being driven and an exhaust portion from which the fluid is discharged as a result of the air blower 50 being driven and that accommodates the air blower 50. The housing 20 is capable of expanding and contracting so as to change the internal volume of the housing 20.

公开(公告)号：US20240050673A1

公开(公告)日：2024-02-15

申请号：US18493150

申请日：2023-10-24

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Yuzo HIGASHIYAMA ,  Hiroaki WADA ,  Shigeru TSUJI

IPC: A61M16/00 ,  A61M16/08 ,  A61M16/10

CPC classification number: A61M16/0066 ,  A61M16/0875 ,  A61M16/1045 ,  A61M2209/084

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.

公开(公告)号：US20200316329A1

公开(公告)日：2020-10-08

申请号：US16904718

申请日：2020-06-18

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Shigeru TSUJI ,  Takanori HAYASHI ,  Hiroaki WADA

IPC: A61M16/00

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.

公开(公告)号：US20190275218A1

公开(公告)日：2019-09-12

申请号：US16420309

申请日：2019-05-23

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Kiyoshi KURIHARA ,  Susumu TAKEUCHI ,  Kenichiro KAWAMURA ,  Hiroaki WADA

IPC: A61M1/00

Abstract: A suction discharge unit of a suction discharge device includes a first unit and a second unit. The second unit controls the pressure inside the first unit. The first unit includes a storage chamber and a water sealing chamber. The water sealing chamber includes a first chamber communicating with the storage chamber, and a second chamber is sealed from the first chamber by sealing water. A negative pressure control unit is disposed in the second chamber. The negative pressure control unit includes a liquid retaining part retaining a liquid, a control member including control holes, and a support tube supporting the control member. The negative pressure control unit controls the pressure of the first chamber by causing gas to flow from the second chamber into the first chamber via the control holes and the liquid based on the pressure of the second chamber and the pressure of the first chamber.