Patents by Inventor Shigeru Tsuji
Shigeru Tsuji has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20240082520Abstract: 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.Type: ApplicationFiled: November 16, 2023Publication date: March 14, 2024Inventors: Shigeru TSUJI, Takanori HAYASHI, Hiroaki WADA
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Publication number: 20240050673Abstract: 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.Type: ApplicationFiled: October 24, 2023Publication date: February 15, 2024Inventors: Yuzo HIGASHIYAMA, Hiroaki WADA, Shigeru TSUJI
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Patent number: 11857724Abstract: 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.Type: GrantFiled: June 18, 2020Date of Patent: January 2, 2024Assignee: MURATA MANUFACTURING CO., LTD.Inventors: Shigeru Tsuji, Takanori Hayashi, Hiroaki Wada
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Patent number: 11833300Abstract: 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.Type: GrantFiled: September 17, 2020Date of Patent: December 5, 2023Assignee: MURATA MANUFACTURING CO., LTD.Inventors: Yuzo Higashiyama, Hiroaki Wada, Shigeru Tsuji
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Publication number: 20210393914Abstract: According to the present disclosure, a CPAP apparatus that has a humidification function and that has high portability is provided. A CPAP apparatus includes a body unit and a base unit on and from which the body unit is mountable and removable. The body unit includes a first housing that has a first inlet and a first outlet, an air-sending device that discharges, via the first outlet, air that is introduced via the first inlet, and a first control unit that controls the air-sending device. The base unit includes a second housing that has a second inlet and a second outlet, a humidifier that humidifies air that is introduced via the second inlet, and a second control unit that controls the humidifier.Type: ApplicationFiled: August 31, 2021Publication date: December 23, 2021Inventor: Shigeru TSUJI
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Patent number: 10982679Abstract: A blowing apparatus includes a blowing unit, a first circuit board, a second circuit board, a top casing, a middle casing, and a bottom casing. The bottom casing has an intake hole. The middle casing has a nozzle to which a tube is attached, and also has an exhaust hole inside the nozzle. The exhaust hole is connected to a mask, with the tube interposed therebetween. The blowing unit includes a fan and a motor configured to rotate the fan. The blowing unit is located in a region between the first circuit board and the second circuit board. The first circuit board intersects a rotation axis of the fan. The first circuit board covers the blowing unit as viewed from the top casing in plan view of the first circuit board.Type: GrantFiled: February 19, 2018Date of Patent: April 20, 2021Assignee: MURATA MANUFACTURING CO., LTD.Inventors: Yuzo Higashiyama, Shigeru Tsuji
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Publication number: 20210001069Abstract: 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.Type: ApplicationFiled: September 17, 2020Publication date: January 7, 2021Inventors: Yuzo HIGASHIYAMA, Hiroaki WADA, Shigeru TSUJI
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Publication number: 20200316329Abstract: 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.Type: ApplicationFiled: June 18, 2020Publication date: October 8, 2020Inventors: Shigeru TSUJI, Takanori HAYASHI, Hiroaki WADA
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Patent number: 10168715Abstract: A ball-balancing robot is capable of accurately controlling its posture when a robot main body is rotated about the vertical axis in a yaw direction in a state in which the robot main body is positioned on a spherical object in a posture in which a gravity center of the robot main body matches a vertical axis passing a center of the spherical object, and in a state in which a base axis of the roll-direction angular velocity sensor is inclined with respect to the horizon in a pitch direction (at an inclination angle ?p), the robot main body is able to rotate while maintaining a predetermined posture by making correction to cancel a detection error in the angular velocity in the roll direction generated based on the inclination of the base axis of the roll-direction angular velocity sensor.Type: GrantFiled: August 28, 2017Date of Patent: January 1, 2019Assignee: MURATA MANUFACTURING CO., LTD.Inventors: Shigeru Tsuji, Mitsuru Kitagawa
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Patent number: 10052253Abstract: A support unit is connected to a shaft of a main wheel and thus is always maintained in parallel to or at a predetermined angle to a road surface, independently of an inclination angle of a main body. Accordingly, an incline estimating unit regards an inclination angle ?3 being a value in an inclination sensor as being equal to an inclination angle ?2 of the road surface (or in a case where the support unit is inclined a predetermined angle to the road surface, an angle from ?3 to the predetermined angle is subtracted from or added to the crossing angle) and outputs the estimated inclination angle ?2 of the road surface to a target inclination angle determining unit.Type: GrantFiled: June 17, 2016Date of Patent: August 21, 2018Assignee: MURATA MANUFACTURING CO., LTD.Inventors: Kenichi Shirato, Shigeru Tsuji, Masayuki Kubo, Yoshitaka Hane
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Publication number: 20180169359Abstract: A blowing apparatus includes a blowing unit, a first circuit board, a second circuit board, a top casing, a middle casing, and a bottom casing. The bottom casing has an intake hole. The middle casing has a nozzle to which a tube is attached, and also has an exhaust hole inside the nozzle. The exhaust hole is connected to a mask, with the tube interposed therebetween. The blowing unit includes a fan and a motor configured to rotate the fan. The blowing unit is located in a region between the first circuit board and the second circuit board. The first circuit board intersects a rotation axis of the fan. The first circuit board covers the blowing unit as viewed from the top casing in plan view of the first circuit board.Type: ApplicationFiled: February 19, 2018Publication date: June 21, 2018Inventors: Yuzo HIGASHIYAMA, Shigeru TSUJI
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Patent number: 9849686Abstract: The invention relates to a method of charging for ink in an ink container consumed by a printing unit during printing. The method of charging includes obtaining information on an amount of the ink consumed; and implementing charging on the basis of the information. Before the amount of the ink in the ink container consumed reaches a predetermined value, first charging is implemented according to a charging basis in which usage-based charging is implemented on the basis of the amount of the ink consumed. After the amount of the ink consumed reaches the predetermined value, second charging is implemented according to a charging basis different from the charging basis applied to the first charging.Type: GrantFiled: July 15, 2016Date of Patent: December 26, 2017Assignee: Seiko Epson CorporationInventors: Yuki Kuwahara, Shigeru Tsuji, Takefumi Inui, Keiichi Taguchi
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Publication number: 20170357272Abstract: A ball-balancing robot is capable of accurately controlling its posture when a robot main body is rotated about the vertical axis in a yaw direction in a state in which the robot main body is positioned on a spherical object in a posture in which a gravity center of the robot main body matches a vertical axis passing a center of the spherical object, and in a state in which a base axis of the roll-direction angular velocity sensor is inclined with respect to the horizon in a pitch direction (at an inclination angle ?P), the robot main body is able to rotate while maintaining a predetermined posture by making correction to cancel a detection error in the angular velocity in the roll direction generated based on the inclination of the base axis of the roll-direction angular velocity sensor.Type: ApplicationFiled: August 28, 2017Publication date: December 14, 2017Inventors: Shigeru TSUJI, Mitsuru KITAGAWA
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Publication number: 20170015105Abstract: The invention relates to a method of charging for ink in an ink container consumed by a printing unit during printing. The method of charging includes obtaining information on an amount of the ink consumed; and implementing charging on the basis of the information. Before the amount of the ink in the ink container consumed reaches a predetermined value, first charging is implemented according to a charging basis in which usage-based charging is implemented on the basis of the amount of the ink consumed. After the amount of the ink consumed reaches the predetermined value, second charging is implemented according to a charging basis different from the charging basis applied to the first charging.Type: ApplicationFiled: July 15, 2016Publication date: January 19, 2017Applicant: SEIKO EPSON CORPORATIONInventors: Yuki KUWAHARA, Shigeru TSUJI, Takefumi INUI, Keiichi TAGUCHI
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Patent number: 9522611Abstract: A tire angular velocity controller (211) is input with a difference between a target value of a rotational angular velocity of 0 for main wheels (11) and a rotational angular velocity of the main wheels (11), which is a differential value of a signal output from a main wheels rotary encoder (26). The tire angular velocity controller (211) calculates an inclination angle for the main body (10) that will cause the difference to become zero. In a second control mode, the calculated inclination angle is used as a target inclination angle and the difference between this target inclination angle and the inclination angle of the main body (10) at the present time input from an inclination angle sensor (20) is input to a main body inclination angle controller (212).Type: GrantFiled: March 11, 2015Date of Patent: December 20, 2016Assignee: MURATA MANUFACTURING CO., LTD.Inventors: Shigeru Tsuji, Kenichi Shirato, Masayuki Kubo
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Publication number: 20160296411Abstract: A support unit is connected to a shaft of a main wheel and thus is always maintained in parallel to or at a predetermined angle to a road surface, independently of an inclination angle of a main body. Accordingly, an incline estimating unit regards an inclination angle ?3 being a value in an inclination sensor as being equal to an inclination angle ?2 of the road surface (or in a case where the support unit is inclined a predetermined angle to the road surface, an angle from ?3 to the predetermined angle is subtracted from or added to the crossing angle) and outputs the estimated inclination angle ?2 of the road surface to a target inclination angle determining unit.Type: ApplicationFiled: June 17, 2016Publication date: October 13, 2016Inventors: Kenichi SHIRATO, Shigeru TSUJI, Masayuki KUBO, Yoshitaka HANE
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Patent number: 9463836Abstract: Provided is a mobile body configured to prevent a main body thereof from overturning in a case of being used in a state where an auxiliary wheel is not provided or the auxiliary wheel is not in contact with the ground. In a first control mode, by performing inverted pendulum control all the time, a posture of a main body portion (10) is maintained to be constant. For example, in the case where a user operates a changeover switch, a controller (21) shifts to a second control mode in which the rotation of main wheels (11) is driven and controlled so that an angle of the main body portion (10) with respect to the vertical direction becomes ?1? which is greater than ?1. In the second control mode, the main wheels (11) and an auxiliary wheel (13) are in contact with the ground.Type: GrantFiled: March 13, 2015Date of Patent: October 11, 2016Assignee: MURATA MANUFACTURING CO., LTD.Inventors: Masayuki Kubo, Kenichi Shirato, Shigeru Tsuji
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Patent number: 9128488Abstract: In a movement direction control apparatus and a non-transitory computer readable medium, a reaction torque accompanying rotation of a rotor is utilized to control a rotation angle of a body in a yaw direction. A specification of a yaw angle of a wheel as a target of the movement direction is received, and information of a friction torque is acquired. A rotation angular acceleration in the yaw direction is calculated, based on the yaw angle, the specification of which has been received, and the reaction torque is calculated, based on the calculated rotation angular acceleration in the yaw direction. An operation instruction to a motor for yaw is generated, based on the calculated reaction torque and the acquired information of the friction torque.Type: GrantFiled: September 14, 2011Date of Patent: September 8, 2015Assignee: Murata Manufacturing Co., Ltd.Inventors: Shigeru Tsuji, Shigeki Fukunaga, Mitsuhiro Namura, Koji Kawai, Kenichi Shirato
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Patent number: 9089460Abstract: A pushcart in which a user can adjust a balance direction based on his/her own sense even on a slope. The pushcart includes a pair of wheels, driving units, a pair of wheels are supported on a main body unit in a rotatable manner, a grip portion provided on another side of the main body unit, and a support portion that is connected to the main body unit on one side so as to be capable of rotating in a pitch direction and supports assist wheels in a rotatable manner on another side. An angle formed between the main body unit and a direction orthogonal to the ground surface is estimated based on detected angle between the main body and the support portion. An attitude of the main body unit in the pitch direction is controlled based on a target pitch angle corrected using a correction value.Type: GrantFiled: March 13, 2015Date of Patent: July 28, 2015Assignee: MURATA MANUFACTURING CO., LTD.Inventors: Kenichi Shirato, Shigeru Tsuji, Masayuki Kubo
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Publication number: 20150183340Abstract: A tire angular velocity controller (211) is input with a difference between a target value of a rotational angular velocity of 0 for main wheels (11) and a rotational angular velocity of the main wheels (11), which is a differential value of a signal output from a main wheels rotary encoder (26). The tire angular velocity controller (211) calculates an inclination angle for the main body (10) that will cause the difference to become zero. In a second control mode, the calculated inclination angle is used as a target inclination angle and the difference between this target inclination angle and the inclination angle of the main body (10) at the present time input from an inclination angle sensor (20) is input to a main body inclination angle controller (212).Type: ApplicationFiled: March 11, 2015Publication date: July 2, 2015Inventors: Shigeru TSUJI, Kenichi SHIRATO, Masayuki KUBO