Minebea Mitsumi Inc.

Mitsumi Electric Company Ltd.

Kenta Ueda

Shigenori Inamoto

Takahiko Irie

Yuki Takahashi

Daisuke Kodama

Chikara Sekiguchi

Yuta Yoshii

Daisuke Kurita

Yoshihisa Kainuma

A detection system contains a sensing device including a vibration unit for applying vibration to the inspection target, the vibration unit attached to the inspection target, a driving circuit for supplying an electric signal to the vibration unit for driving the vibration unit and a sensor for detecting vibration of the inspection target caused by the vibration applied from the vibration unit; and a detection processing device for receiving vibration information related to the vibration of the inspection target detected by the sensor from the sensing device and detecting the state change of the inspection target based on the vibration information. The vibration unit includes a coil, a spring, and a magnet.

Detection system and detection method

A pump system contains a pair of pumps each of which contains a vibration actuator vibrated by electromagnetic drive and can discharge fluid due to drive of the vibration actuator. The pump system has a vibration suppression mode in which the pair of the pumps are driven so that vibration of the vibration actuators of the pair of pumps is cancelled each other and a vibration generation mode in which the pair of the pumps are driven so that the vibration of the vibration actuators of the pair of pumps is superimposed with each other.

Pump system and electronics device

A pump contains a sealed chamber, a movable wall for changing a volume of the sealed chamber, and a vibration actuator which can be electromagnetically driven for displacing the movable wall to discharge fluid in the sealed chamber to an outside of the sealed chamber. Further, three axes perpendicular to each other are respectively defined as an X axis, a Y axis, and a Z axis. When a direction along the X axis is defined as an X axis direction, a direction along the Y axis is defined as a Y axis direction, and a direction along the Z axis direction is defined as a Z axis direction, an outer shape of the pump is a concave shape in a planar view from the Y axis direction.

Pump and fluid supply device

Pump system with vibration generation and suppression mode in a wearable electronics device

A detection systemcontains a sensing deviceincluding a vibration unitfor applying vibration to the inspection target, the vibration unitattached to the inspection target, a driving circuitfor supplying an electric signal to the vibration unitfor driving the vibration unitand a sensorfor detecting vibration of the inspection targetcaused by the vibration applied from the vibration unit; and a detection processing devicefor receiving vibration information related to the vibration of the inspection targetdetected by the sensorfrom the sensing deviceand detecting the state change of the inspection targetbased on the vibration information. The vibration unitincludes a coil, a spring, and a magnet

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Tokyo, Japan

Kenta Ueda