Abstract: A magnetic sensor includes first to fourth resistors, a power supply port, a ground port, a first output port, and a second output port. The first resistor and the second resistor are located in a first region and connected in series via a first connection point connected to the first output port. The third resistor and the fourth resistor are located in a second region and connected in series via a second connection point connected to the second output port, at least a part of the second region being located at a position different from the first region in a direction parallel to an X direction. The first and second resistors are located between the third and fourth resistors in a direction parallel to a Y direction.

Abstract: An angle sensor includes first and second detection units and an angle detection unit. Each of the first and second detection units generates two detection signals. The first and second detection units are arranged in a positional relationship that establishes predetermined phase relationships among the detection signals they generate. The angle detection unit includes first and second computing circuits and an angle computing unit. The first and second computing circuits generate first and second signals in each of which an error component corresponding to a fifth harmonic contained in the detection signals is reduced. The angle computing unit calculates a detected angle value on the basis of the first and second signals. The angle computing unit performs correction processing for reducing an error occurring in the detected angle value due to an error component corresponding to a third harmonic contained in the detection signals.

Abstract: A magnetic field detection device of an embodiment of the disclosure includes: a first magnetic field detection element having a first resistance value increasing upon application of a first magnetic field in a first direction and decreasing upon application of a second magnetic field in a second direction; and a second magnetic field detection element having a second resistance value decreasing upon application of the first magnetic field and increasing upon application of the second magnetic field. The first and second magnetic field detection elements each include first and second magneto-resistive effect films coupled in series. The first magneto-resistive effect film has a first major-axis direction inclined at a first inclination angle relative to the first direction. The second magneto-resistive effect film has a second major-axis direction inclined at a second inclination angle relative to the first direction. The magnetic field detection device satisfies conditional expressions (1) and (2).

Abstract: A magnetic sensor whose output characteristic is less sensitive to the environmental temperature is provided. Magnetic sensor 1 has free layer 24 whose magnetization direction changes in response to an external magnetic field, pinned layer 22 whose magnetization direction is fixed with respect to the external magnetic field, spacer layer 23 that is located between pinned layer 22 and free layer 24 and that exhibits a magnetoresistance effect, and at least one magnet film 25 that applies a bias magnetic field to free layer 24. The film thickness of the magnet film is 15 nm or more and 50 nm or less. The relationship of 0.7?TC_HM/TC_FL?1.05 is satisfied, where TC_HM is Curie temperature of the magnet film, and TC_FL is Curie temperature of the free layer.

Abstract: A pair of bias magnets applies a bias magnetic field to the magneto-resistive effect element, the bias magnetic field having a component in a direction such that the component cancels the external magnetic field that is applied to the magneto-resistive effect element and a component that is perpendicular to the external magnetic field. The bias magnet has an elongate cross section in a plane that is parallel both to the external magnetic field and to the bias magnetic field. In a projection plane that is parallel to the cross section and onto which the bias magnets and the magneto-resistive effect element are projected, the bias magnet includes an element facing side that is opposite to the magneto-resistive effect element and that extends in a longitudinal direction. The bias magnet is magnetized in a direction that is perpendicular to the longitudinal direction. The element facing side is longer than other sides.

Abstract: The position detecting device of the present invention is a device for detecting the position of a movable detection target within a predetermined movable range. The position detecting device comprises: a first magnet (13A) and a second magnet (13B) which are arranged so as to move integrally with the movement of the detection target; a first magnetic detecting circuit (20A) that detects the magnetic field of the first magnet (13A) and a second magnetic detecting circuit (20B) that detects the magnetic field of the second magnet (13B), which are arranged at positions outside the movable range; and a differential amplifier (8) that amplifies the difference between the detection signals of the magnetic field output from the first magnetic detecting circuit (20A) and the second magnetic detecting circuit (20B), and that outputs the amplified difference of the signal as a position detecting signal of the detection target.

Abstract: A magnetic field detection apparatus includes a magnetoresistive effect element and a helical coil. The magnetoresistive effect element includes a magnetoresistive effect film extending in a first axis direction. The helical coil includes a parallel connection including first and second parts extending in a second axis direction inclined with respect to the first axis direction. The first and second parts are adjacent to each other in a third axis direction and coupled to each other in parallel. The helical coil is wound around the magnetoresistive effect element while extending along the third axis direction. The magnetoresistive effect film overlaps the first and second parts in a fourth axis direction orthogonal to the second and third axis directions. The helical coil is configured to be supplied with a current and thereby configured to generate an induction magnetic field to be applied to the magnetoresistive effect film in the third axis direction.

Abstract: A magnetic field detection apparatus includes a magnetoresistive effect element and a conductor. The magnetoresistive effect element includes a magnetoresistive effect film extending in a first axis direction and including a first end part, a second end part, and an intermediate part between the first and second end parts. The conductor includes a first part and a second part that each extend in a second axis direction inclined with respect to the first axis direction. The conductor is configured to be supplied with a current and thereby configured to generate an induction magnetic field to be applied to the magnetoresistive effect film in a third axis direction orthogonal to the second axis direction. The first part and the second part respectively overlap the first end part and the second end part in a fourth axis direction orthogonal to both of the second axis direction and the third axis direction.

Abstract: A magnetic sensor includes first, second, and third detection units for detecting components in X, Y, and Z directions of an external magnetic field. The third detection unit includes a soft magnetic structure. The first detection unit includes a first portion and a second portion. The second detection unit includes a third portion and a fourth portion. The first portion and the fourth portion are located on opposite sides of the third detection unit in the X direction. The second portion and the third portion are located on opposite sides of the third detection unit in the Y direction.

Abstract: A magnetic sensor includes a magnetic sensor tip that includes a magnetoresistive effect element and a sealed part. The magnetoresistive effect element includes a free layer and a pinned layer. The sealed part has a first surface and a second surface, which is opposite the first surface. The shape of the sealed part in the plan view from the first surface side is substantially quadrilateral. The substantially quadrilateral shape has a first side and a second side, which are substantially parallel to each other. In the plan view, from the first surface side of the sealed part, the magnetization direction of the pinned layer, in a state in which the external magnetic field is not applied on the magnetoresistive effect element, is inclined with respect to an approximately straight line found through the least squares method using a plurality of points arbitrarily set on the first side.

Abstract: A pair of bias magnets applies a bias magnetic field to the magneto-resistive effect element, the bias magnetic field having a component in a direction such that the component cancels the external magnetic field that is applied to the magneto-resistive effect element and a component that is perpendicular to the external magnetic field. The bias magnet has an elongate cross section in a plane that is parallel both to the external magnetic field and to the bias magnetic field. In a projection plane that is parallel to the cross section and onto which the bias magnets and the magneto-resistive effect element are projected, the bias magnet includes an element facing side that is opposite to the magneto-resistive effect element and that extends in a longitudinal direction. The bias magnet is magnetized in a direction that is perpendicular to the longitudinal direction. The element facing side is longer than other sides.

Abstract: An operation processing apparatus that calculates a rotation angle based on a first output signal and a second output signal, which differ in signal frequency from each other, is provided with a first cross-coupled operation part that performs a first cross-coupled operation and a second cross-coupled operation part that performs a second cross-coupled operation based on the first and second output signals. A first Lissajous curve generation part generates a first Lissajous curve based on the result of operation by the first cross-coupled operation part, and a second Lissajous curve generation part generates a second Lissajous curve based on the result of operation by the second cross-coupled operation part. A rotation angle computing part calculates the rotation angle based on the first Lissajous curve and the second Lissajous curve.

Abstract: A magnetic field detection device of an embodiment of the disclosure includes: a first magnetic field detection element having a first resistance value increasing upon application of a first magnetic field in a first direction and decreasing upon application of a second magnetic field in a second direction; and a second magnetic field detection element having a second resistance value decreasing upon application of the first magnetic field and increasing upon application of the second magnetic field. The first and second magnetic field detection elements each include first and second magneto-resistive effect films coupled in series. The first magneto-resistive effect film has a first major-axis direction inclined at a first inclination angle relative to the first direction. The second magneto-resistive effect film has a second major-axis direction inclined at a second inclination angle relative to the first direction. The magnetic field detection device satisfies conditional expressions (1) and (2).

Abstract: A magnetic sensor whose output characteristic is less sensitive to the environmental temperature is provided. Magnetic sensor 1 has free layer 24 whose magnetization direction changes in response to an external magnetic field, pinned layer 22 whose magnetization direction is fixed with respect to the external magnetic field, spacer layer 23 that is located between pinned layer 22 and free layer 24 and that exhibits a magnetoresistance effect, and at least one magnet film 25 that is disposed on a lateral side of free layer 24 and that applies a bias magnetic field to free layer 24. A relationship of 0.7 ?TC_HM/TC_FL?1.05 is satisfied, where TC_HM is Curie temperature of the magnet film, and TC_FL is Curie temperature of the free layer.

Abstract: An operation processing apparatus that calculates a rotation angle based on a first output signal and a second output signal, which differ in signal frequency from each other, is provided with a first cross-coupled operation part that performs a first cross-coupled operation and a second cross-coupled operation part that performs a second cross-coupled operation based on the first and second output signals. A first Lissajous curve generation part generates a first Lissajous curve based on the result of operation by the first cross-coupled operation part, and a second Lissajous curve generation part generates a second Lissajous curve based on the result of operation by the second cross-coupled operation part. A rotation angle computing part calculates the rotation angle based on the first Lissajous curve and the second Lissajous curve.

Abstract: A magnetic sensor includes first, second, and third detection units for detecting components in X, Y, and Z directions of an external magnetic field. The third detection unit includes a soft magnetic structure. The first detection unit includes a first portion and a second portion. The second detection unit includes a third portion and a fourth portion. The first portion and the fourth portion are located on opposite sides of the third detection unit in the X direction. The second portion and the third portion are located on opposite sides of the third detection unit in the Y direction.

Abstract: A magnetic sensor device includes a first magnetic sensor, a second magnetic sensor, and a soft magnetic structure. The first magnetic sensor generates a detection value corresponding to a component in a direction parallel to an X direction of an external magnetic field. The second magnetic sensor generates a detection value corresponding to a component in a direction parallel to a Y direction of the external magnetic field. In the presence of a residual magnetization in the X direction in the soft magnetic structure, a magnetic field that is based on the residual magnetization and contains a component in the ?X direction is applied to the first magnetic sensor. In the presence of a residual magnetization in the Y direction in the soft magnetic structure, a magnetic field that is based on the residual magnetization and contains a component in the ?Y direction is applied to the second magnetic sensor.

Abstract: A magnetic field detection device includes a first soft magnetic body, a second soft magnetic body, and a magnetism detection element. The first soft magnetic body extends to have a first length in a first direction, and has a first width, smaller than the first length, in a second direction. The second direction is substantially orthogonal to the first direction. The second soft magnetic body is disposed to be spaced apart from and face the first soft magnetic body in the first direction, extends to have a second length in the first direction, and has a second width, smaller than the second length, in the second direction. The magnetism detection element is disposed, in the first direction, between the first and second soft magnetic bodies, and extends to have a third length in the first direction and a third width, larger than the third length, in the second direction.

Abstract: An angle sensor includes a plurality of composite magnetic field information generation units and an angle computing unit. The plurality of composite magnetic field information generation units detect, at a plurality of detection positions, a composite magnetic field of a magnetic field to be detected and a noise magnetic field other than the magnetic field to be detected, and thereby generate a plurality of pieces of composite magnetic field information including information on at least the direction, out of the direction and the strength, of the composite magnetic field. At each of the plurality of detection positions, the magnetic field to be detected varies in direction according to an angle to be detected. The angle computing unit generates a detected angle value using the method of least squares on the basis of the plurality of pieces of composite magnetic field information.

Abstract: Provided is a magnetic field detection device that includes a first and second soft magnetic bodies, and a magnetic detector. The first and second soft magnetic bodies extend along a first plane and are disposed in confronted relation in a third direction. The first plane includes both a first direction and a second direction orthogonal to the first direction. The third direction is orthogonal to both the first and second directions. The magnetic detector is provided between the first and second soft magnetic bodies in the third direction.