Abstract: A magnetoencephalograph M1 includes: multiple optically pumped magnetometers 1A that measure a brain's magnetic field; multiple magnetic sensors for geomagnetic field cancellation 2 that measure a magnetic field; multiple magnetic sensors for active shield 3 that measure a fluctuating magnetic field; a geomagnetic field nulling coil; an active shield coil 9; a control device 5 that determines a current to generate a magnetic field for canceling the magnetic field based on measured values of the multiple magnetic sensors for geomagnetic field cancellation 2, determines a current to generate a magnetic field for canceling the fluctuating magnetic field based on measured values of the multiple magnetic sensors for active shield 3, and outputs a control signal corresponding to each of the determined currents; and a coil power supply 6 that outputs a current to each coil in response to the control signal.

Abstract: A brain measurement apparatus includes: a magnetoencephalograph including optically pumped magnetometers, magnetic sensors for measuring geomagnetic field at positions of the optically pumped magnetometers, magnetic sensors for measuring a fluctuating magnetic field at the positions of the optically pumped magnetometers, nulling coils for cancelling the geomagnetic field, and an active shield coil for cancelling the fluctuating magnetic field; an MRI apparatus including nulling coils for applying a static magnetic field and a gradient magnetic field, a transmission coil, and a receive coil; and a control device that, when measuring a brain's magnetic field, controls currents supplied to the nulling coils and the active shield coil based on measured values of the magnetic sensors and, when measuring an MR image, controls the static magnetic field and the gradient magnetic field by controlling currents supplied to the nulling coils and generates an MR image from an output of the receive coil.

Abstract: Provided are: a spherical magnesium oxide having not only high sphericity but also smooth surface and having excellent moisture resistance and excellent filling properties, and a method producing the same. In the present invention, by controlling the boron and iron contents of the calcined magnesium oxide to be in the respective predetermined ranges, there is provided a spherical magnesium oxide having a volume-based cumulative 50% particle diameter (D50), as measured by a laser diffraction/scattering particle size distribution measurement, in the range of from 3 to 200 ?m, which is the range for a relatively large particle diameter, and a high sphericity of 1.00 to 1.20, as measured from viewing a SEM photomicrograph, as well as smooth surface, and having excellent moisture resistance and excellent filling properties. A predetermined spherical magnesium oxide is provided by virtue of the synergies obtained from the boron content of 300 to 2,000 ppm and the iron content of 100 to 1,500 ppm.

Abstract: In a probe unit having a measuring probe, a signal processing circuit includes: a signal synthesizing portion configured to process an output of a detection element to output a composite signal obtained by synthesizing displacement components of a contact part in three directions perpendicular to one another; and a signal outputting portion configured to output a digital touch signal to the outside of the probe unit when the composite signal satisfies a predetermined threshold condition. The signal outputting portion includes three comparing portions each configured to compare a threshold condition with the composite signal. When the measuring probe measures the object to be measured, the signal outputting portion outputs the digital touch signal corresponding to outputs of the first and second comparing portions. Thus, there can be provided a probe unit and a measuring system that can stably make measurements with high accuracy while keeping high noise resistance.

Abstract: Provided is a defect judging unit for a measuring probe including: a stylus; four detection elements; and a signal processing part. The defect judging unit includes a defect judging part configured to compare four judged signals corresponding to the generated signals with predetermined thresholds when the object to be measured and the contact part are out of contact with each other and judge that a defect exists if any of the judged signals is greater than the predetermined threshold, and a judged result output part configured to output a judged result of the defect judging part. According to this configuration, the defect judging unit of the measuring probe and the defect judging method thereof capable of ensuring measurement reliability with a simple configuration are provided.

Abstract: A coordinate measuring probe body includes a rigid probe body structure including an upper mounting portion, a compliant element mounting frame, and an axial extension portion between them. A stylus suspension portion includes compliant elements that suspend a moving element from the compliant element mounting frame. A displacement sensing arrangement that senses displacement of the moving element includes displacement sensors that output a respective displacement signals. A circuit board assembly that receives the displacement signals has three component mounting portions which are interconnected with a flexible circuit component, and located around the axial extension portion. In various embodiments, all of the compliant elements are located on a distal side of the circuit board assembly.

Abstract: Provided is a magnesium oxide-containing spinel powder capable of producing a ceramic sintered body having high strength and excellent strength stability. In the magnesium oxide-containing spinel powder, a 50% particle diameter (D50) is 0.30 to 10.00 ?m, a ratio (D90-D50)/(D50-D10) of a difference between a 90% particle diameter (D90) and the 50% particle diameter (D50) and a difference between the 50% particle diameter (D50) and a 10% particle diameter (D10) is 1.0 to 5.0, and a composition ratio of Mg and Al in terms of an oxide equivalent content is 50 to 90% by weight of MgO and 10 to 50% by weight of Al2O3.

Abstract: The present invention relates to a novel trolley coupling structure that allows coupling of base parts of trolleys aligned in the vertical or horizontal direction. The present invention provides a trolley coupling structure in which a first receiving recess part is provided in a base part of one trolley, a second receiving recess part is provided in a base part of another trolley, a locking member is pivotally attached to the first receiving recess part, a recess part body and a bent section are formed in the respective first and second receiving recess parts, and retaining of the locking member is achieved by constraining and locking a constraining piece part of the locking member at the bent section.

Abstract: In a probe unit having a measuring probe, a signal processing circuit includes: a signal synthesizing portion configured to process an output of a detection element to output a composite signal obtained by synthesizing displacement components of a contact part in three directions perpendicular to one another; and a signal outputting portion configured to output a digital touch signal to the outside of the probe unit when the composite signal satisfies a predetermined threshold condition. The signal outputting portion includes three comparing portions each configured to compare a threshold condition with the composite signal. When the measuring probe measures the object to be measured, the signal outputting portion outputs the digital touch signal corresponding to outputs of the first and second comparing portions. Thus, there can be provided a probe unit and a measuring system that can stably make measurements with high accuracy while keeping high noise resistance.

Abstract: Provided are: a spherical magnesium oxide having not only high sphericity but also smooth surface and having excellent moisture resistance and excellent filling properties, and a method producing the same. In the present invention, by controlling the boron and iron contents of the calcined magnesium oxide to be in the respective predetermined ranges, there is provided a spherical magnesium oxide having a volume-based cumulative 50% particle diameter (D50), as measured by a laser diffraction/scattering particle size distribution measurement, in the range of from 3 to 200 ?m, which is the range for a relatively large particle diameter, and a high sphericity of 1.00 to 1.20, as measured from viewing a SEM photomicrograph, as well as smooth surface, and having excellent moisture resistance and excellent filling properties. A predetermined spherical magnesium oxide is provided by virtue of the synergies obtained from the boron content of 300 to 2,000 ppm and the iron content of 100 to 1,500 ppm.

Abstract: Provided is a magnesium oxide-containing spinel powder capable of producing a ceramic sintered body having high strength and excellent strength stability. In the magnesium oxide-containing spinel powder, a 50% particle diameter (D50) is 0.30 to 10.00 ?m, a ratio (D90-D50)/(D50-D10) of a difference between a 90% particle diameter (D90) and the 50% particle diameter (D50) and a difference between the 50% particle diameter (D50) and a 10% particle diameter (D10) is 1.0 to 5.0, and a composition ratio of Mg and Al in terms of an oxide equivalent content is 50 to 90% by weight of MgO and 10 to 50% by weight of Al2O3.

Abstract: A measuring probe includes two supporting members, each having a rotationally symmetric shape and allowing for an attitude change of a stylus, in an axial direction of a probe housing. Four detection elements are disposed at fourfold symmetric positions in one of the two supporting members that includes four deformable arm parts. A signal processing circuit includes a first processing part that processes outputs of the detection elements to output three displacement signals representing displacement components of a contact part in mutually perpendicular three directions, respectively. The measuring probe capable of reducing measurement directional dependency of sensitivity with a simple configuration while maintaining high sensitivity is thus provided.

Abstract: A measuring probe includes: a stylus having a contact part to be brought into contact with an object to be measured; a probe housing capable of supporting the stylus on an axial center; and a detection element capable of detecting a movement of the contact part. The measuring probe further includes: two supporting members disposed in an axial direction of the probe housing, the supporting member allowing for an attitude change of the stylus; and a coupling shaft for coupling the two supporting members together. The detection element is disposed in one of the two supporting members that is farthest away from a rotational center position of rotation generated in the stylus when a measuring force is applied to the contact part from a direction perpendicular to the axial direction, to detect a strain amount of the one of the two supporting members.

Abstract: A coordinate measuring probe body includes a rigid probe body structure including an upper mounting portion, a compliant element mounting frame, and an axial extension portion between them. A stylus suspension portion includes compliant elements that suspend a moving element from the compliant element mounting frame. A displacement sensing arrangement that senses displacement of the moving element includes displacement sensors that output a respective displacement signals. A circuit board assembly that receives the displacement signals has three component mounting portions which are interconnected with a flexible circuit component, and located around the axial extension portion. In various embodiments, all of the compliant elements are located on a distal side of the circuit board assembly.

Abstract: A caster mounting portion has a mounting member housing portion which houses the mounting member, the mounting member has a rotary shaft portion which is pivotally supported in a bearing recessed portion in the mounting member housing portion, an abutment body in which the rotary shaft portion is provided at an eccentric position and which is displaced by rotation to be widened to close the inside of the mounting member housing portion, an upper locking piece which engages with a locking receiving portion of an opposed wall, a lower locking piece which abuts against the bottom face of a latching portion, and a locking stepped portion which is urged by a leading end of an elastic arm, climbing over the aforementioned latching portion, and engages with the latching portion.

Abstract: A caster mounting portion has a mounting member housing portion which houses the mounting member, the mounting member has a rotary shaft portion which is pivotally supported in a bearing recessed portion in the mounting member housing portion, an abutment body in which the rotary shaft portion is provided at an eccentric position and which is displaced by rotation to be widened to close the inside of the mounting member housing portion, an upper locking piece which engages with a locking receiving portion of an opposed wall, a lower locking piece which abuts against the bottom face of the aforementioned latching portion, and a locking stepped portion which is urged by a leading end of an elastic arm, climbing over the aforementioned latching portion, and engages with the lathing portion.

Abstract: A toner includes a binder resin including a copolymer resin containing structural units derived from crystalline and non-crystalline resins, respectively. Spin-spin relaxation time (t50) of the toner at 50° C. measured by pulse NMR is ?0.05 msec., spin-spin relaxation time (t130) at 130° C. when warmed from 50° C. to 130° C. is >15 msec., and spin-spin relaxation time (t?70) at 70° C. when cooled from 130° C. to 70° C. is ?1.00 msec. A binarized image obtained by binarizing a phase image of the toner observed by a tapping mode AFM based on intermediate value between maximum and minimum phase difference values in the phase image includes first phase difference images constituted by large phase-difference portions and a second phase difference image constituted by a small phase-difference portion. The first phase difference images are dispersed in the second phase difference image. The dispersion diameter of the first phase difference images is 150 nm or less.

Abstract: A measuring probe includes two supporting members, each having a rotationally symmetric shape and allowing for an attitude change of a stylus, in an axial direction of a probe housing. Four detection elements are disposed at fourfold symmetric positions in one of the two supporting members that includes four deformable arm parts. A signal processing circuit includes a first processing part that processes outputs of the detection elements to output three displacement signals representing displacement components of a contact part in mutually perpendicular three directions, respectively. The measuring probe capable of reducing measurement directional dependency of sensitivity with a simple configuration while maintaining high sensitivity is thus provided.

Abstract: A measuring probe includes: a stylus having a contact part to be brought into contact with an object to be measured; a probe housing capable of supporting the stylus on an axial center; and a detection element capable of detecting a movement of the contact part. The measuring probe further includes: two supporting members disposed in an axial direction of the probe housing, the supporting member allowing for an attitude change of the stylus; and a coupling shaft for coupling the two supporting members together. The detection element is disposed in one of the two supporting members that is farthest away from a rotational center position of rotation generated in the stylus when a measuring force is applied to the contact part from a direction perpendicular to the axial direction, to detect a strain amount of the one of the two supporting members.

Abstract: A toner is provided. The toner includes a crosslinked polyester resin, and a block copolymer. The crosslinked polyester resin includes a diol component, which includes an aliphatic diol component having 3 to 10 carbon atoms in an amount of 50% by mole, and a crosslinked component, which is at least one of a crosslinked component of an aliphatic alcohol having three or more valences and a crosslinked component of an aliphatic acid having three or more valences, and the block copolymer includes a crystalline segment (a) and a non-crystalline segment (b). The toner has a first glass transition temperature (Tg1st) of from 20° C. to 50° C., which is determined by subjecting the toner to differential scanning calorimetry (DSC) and measuring a glass transition temperature in a first temperature rising process in the differential scanning calorimetry (DSC).