Abstract: A magnetic-drive coupling pump configuration including an attachment/detachment mechanism allowing simple and reliable positioning and fixation is provided. Thrust-direction positioning and radial-direction positioning are achieved, respectively, by surface contact of a convex portion of a pump unit (10) inserted up to a predetermined position in a concave portion (31) of a drive motor unit (30), and contact between an outer circumferential surface of the convex portion (11) and an inner circumferential surface of the concave portion (31).

Abstract: A drive unit of a magnet coupling pump, in which leakage of the magnetic flux to the outside and the effect of the external magnetic field are suppressed. The drive unit includes: a driving magnet (219) positioned at an outside of the driven magnet (19) of the magnetic coupling pump (100) with respect to a rotation axis (A) of the magnetic coupling pump (100) to face the driven magnet (19) with a gap; a cup tube portion (221) made of a ferromagnetic material and in a tubular shape centered on the rotation axis (A); a case main body (231) including a cup (220) in which the driving magnet is fixed inside of the cup tube portion; a motor (210) rotating the cup around the rotation axis, and a tube portion (232), which is tubular in shape. The cup is provided in the tube portion (232) with a gap.

Abstract: In a magnetic coupling pump including a closed impeller, and a casing that houses the impeller in such a way that the impeller is rotatable around a rotation axis and movable in an axis direction in which the rotation axis extends, reduction in the rotational frequency of the impeller can be suppressed even if thrust balance collapses temporarily and the impeller and the casing come into contact with each other. A tapered surface (24) or (55) is formed in at least a portion of at least one of a surface (24) or (53) of the impeller (10) and a surface (66) or (86) of a pump casing (60) that faces each other in an axis direction (Da) so that the distance between both the faces varies gradually as it goes in a radial direction (Dr) perpendicular to the axis direction (Da).

Abstract: According to one embodiment, an electronic device includes a first authentication controller, a second authentication controller and a controller. The first authentication controller performs biometric authentication to measure biological data of a user and to determine whether or not the biological data corresponds to registered biological data. The second authentication controller performs inter-device authentication by means of communication between the electronic device and a first external device. The controller enables a predetermined function when the biometric authentication and the inter-device authentication have succeeded.

Abstract: A magnetic-drive coupling pump configuration including an attachment/detachment mechanism allowing simple and reliable positioning and fixation is provided. Thrust-direction positioning and radial-direction positioning are achieved, respectively, by surface contact of a convex portion of a pump unit (10) inserted up to a predetermined position in a concave portion (31) of a drive motor unit (30), and contact between an outer circumferential surface of the convex portion (11) and an inner circumferential surface of the concave portion (31).

Abstract: A magnetic-drive coupling pump configuration including an attachment/detachment mechanism allowing simple and reliable positioning and fixation is provided. Thrust-direction positioning and radial-direction positioning are achieved, respectively, by surface contact of a convex portion of a pump unit (10) inserted up to a predetermined position in a concave portion (31) of a drive motor unit (30), and contact between an outer circumferential surface of the convex portion (11) and an inner circumferential surface of the concave portion (31).

Abstract: A magnetic-drive coupling pump configuration including an attachment/detachment mechanism allowing simple and reliable positioning and fixation is provided. Thrust-direction positioning and radial-direction positioning are achieved, respectively, by surface contact of a convex portion of a pump unit (10) inserted up to a predetermined position in a concave portion (31) of a drive motor unit (30), and contact between an outer circumferential surface of the convex portion (11) and an inner circumferential surface of the concave portion (31).

Abstract: A sealless-type centrifugal pump includes a casing that forms a pump chamber having a liquid inflow port and an outflow port, an impeller disposed in the pump chamber and rotatably supported by a pivot bearing, and a magnetic coupling device including a driven permanent magnet built into the impeller and a driving magnet that rotationally drives the driven permanent magnet through a partition. The impeller supported in the direction of the rotation axis with respect to the casing is driven by the magnetic coupling device, and pressure is applied to liquid introduced from the direction of the rotation axis through the inflow port to send the liquid through the outflow port in a radial direction. The magnetic coupling device is disposed on a line inclined from an impeller rotating surface to the inflow port side toward the center of the rotation axis.

Abstract: A sealless-type centrifugal pump includes a casing that forms a pump chamber having a liquid inflow port and an outflow port, an impeller disposed in the pump chamber and rotatably supported by a pivot bearing, and a magnetic coupling device including a driven permanent magnet built into the impeller and a driving magnet that rotationally drives the driven permanent magnet through a partition. The impeller supported in the direction of the rotation axis with respect to the casing is driven by the magnetic coupling device, and pressure is applied to liquid introduced from the direction of the rotation axis through the inflow port to send the liquid through the outflow port in a radial direction. The magnetic coupling device is disposed on a line inclined from an impeller rotating surface to the inflow port side toward the center of the rotation axis.

Abstract: A disposable centrifugal blood pump with magnetic coupling provides a centrifugal blood pump with magnetic coupling which is simple in structure of disposable parts with low cost. Therefore, a housing as the disposable part includes a rotor having pole faces extending on the outer-peripheral surface and projecting inward from the inner-peripheral surface and an impeller attached to the rotor, and a stator as a reusable part includes three or more electromagnets for electromagnetic coupling for forming a magnetic coupling between the stator and the rotor, a torque transmission disk formed by sandwiching a ring-shaped permanent magnet between two upper and lower ring members and having pole faces corresponding to the pole faces projecting from the inner-peripheral surface of the rotor formed to project for generating a magnetic coupling between stator and rotor, a motor for rotating the torque transmission disk, and a displacement gauge for measuring displacement of the rotor.

Abstract: A disposable centrifugal blood pump with magnetic coupling provides a centrifugal blood pump with magnetic coupling which is simple in structure of disposable parts with low cost. Therefore, a housing as the disposable part includes a rotor having pole faces extending on the outer-peripheral surface and projecting inward from the inner-peripheral surface and an impeller attached to the rotor, and a stator as a reusable part includes three or more electromagnets for electromagnetic coupling for forming a magnetic coupling between the stator and the rotor, a torque transmission disk formed by sandwiching a ring-shaped permanent magnet between two upper and lower ring members and having pole faces corresponding to the pole faces projecting from the inner-peripheral surface of the rotor formed to project for generating a magnetic coupling between stator and rotor, a motor for rotating the torque transmission disk, and a displacement gauge for measuring displacement of the rotor.

Abstract: A disposable centrifugal blood pump with magnetic coupling provides a centrifugal blood pump with magnetic coupling which is simple in structure of disposalable parts with low cost. Therefore, a housing as the disposable part includes a rotor having pole faces extending on the outer-peripheral surface and projecting inward from the inner-peripheral surface and an impeller attached to the rotor, and a stator as a reusable part includes three or more electromagnets for electromagnetic coupling for forming a magnetic coupling between the stator and the rotor, a torque transmission disk formed by sandwiching a ring-shaped permanent magnet between two upper and lower ring members and having pole faces corresponding to the pole faces projecting from the inner-peripheral surface of the rotor formed to project for generating a magnetic coupling between stator and rotor, a motor for rotating the torque transmission disk, and a displacement gauge for measuring displacement of the rotor.

Abstract: A sealless-type centrifugal pump provides a centrifugal pump that is free from leakage without using a shaft seal mechanism. The centrifugal pump includes a casing that forms a pump chamber having a liquid inflow port and an outflow port, an impeller disposed in the pump chamber and rotatably supported by a pivot bearing, and a magnetic coupling device including a driven permanent magnet built into the impeller and a driving magnet that rotationally drives the driven permanent magnet through a partition. The impeller supported in the direction of the rotation axis with respect to the casing is driven by the magnetic coupling device, and pressure is applied to liquid introduced from the direction of the rotation axis through the inflow port to send the liquid through the outflow port in a radial direction. The magnetic coupling device is disposed on a line inclined from an impeller rotating surface to the inflow port side toward the center of the rotation axis.

Abstract: A connecting terminal developed speedily while limiting a temperature rise when a current flows, comprising male and female terminals each having a wire crimp portion to which a wire is crimped, and a joint portion where the male and female terminals are joined to each other, wherein a contact resistance value of the whole connecting terminal is a sum of contact resistance values in the wire crimp portions and the joint portion, and a length of a contact portion is a sum of lengths of the wire crimp portions and the joint portion, wherein a normalized contact resistance value Rter is derived by dividing the contact resistance value by the length, and a relationship of a wire resistance value Rwire of the wire, a current value I and a permissive increase in temperature ?T to the normalized contact resistance value Rter is expressed by Rter<?T/(752×I2)?3.7×Rwire.

Abstract: A disposable centrifugal blood pump with magnetic coupling provides a centrifugal blood pump with magnetic coupling which is simple in structure of disposable parts with low cost. Therefore, a housing as the disposable part includes a rotor having pole faces extending on the outer-peripheral surface and projecting inward from the inner-peripheral surface and an impeller attached to the rotor, and a stator as a reusable part includes three or more electromagnets for electromagnetic coupling for forming a magnetic coupling between the stator and the rotor, a torque transmission disk formed by sandwiching a ring-shaped permanent magnet between two upper and lower ring members and having pole faces corresponding to the pole faces projecting from the inner-peripheral surface of the rotor formed to project for generating a magnetic coupling between stator and rotor, a motor for rotating the torque transmission disk, and a displacement gauge for measuring displacement of the rotor.

Abstract: A connecting terminal developed speedily while limiting a temperature rise when a current flows, comprising male and female terminals each having a wire crimp portion to which a wire is crimped, and a joint portion where the male and female terminals are joined to each other, wherein a contact resistance value of the whole connecting terminal is a sum of contact resistance values in the wire crimp portions and the joint portion, and a length of a contact portion is a sum of lengths of the wire crimp portions and the joint portion, wherein a normalized contact resistance value Rter is derived by dividing the contact resistance value by the length, and a relationship of a wire resistance value Rwire of the wire, a current value I and a permissive increase in temperature ?T to the normalized contact resistance value Rter is expressed by Rter<?T/(752×I2)?3.7×Rwire.

Abstract: In centrifugal pumps 10, 30, 60, 70, and 80 having a rotating centrifugal impeller 14, the flow rate and head of the pumps are estimated on the basis of transverse force applied to the centrifugal impeller 14 during rotation of the centrifugal impeller 14, and evaluation is also made for a circulatory state of the pulsating cardiovascular system. Thereby, it is possible to measure the flow rate and head of the centrifugal pumps and evaluate circulation functions during circulatory assistance by the centrifugal pump.

Abstract: A movable cylinder (20) is provided with an inner cylinder chamber (21) and an outer cylinder chamber (31) which surrounds the inner cylinder chamber. The inner cylinder chamber is provided with an inner piston (22) inserted therein, which is integrally secured to the stationary rods. The inner cylinder chamber is also provided with an inner front inlet (25), an inner rear inlet (26), an inner rear outlet (27) and an inner front outlet (28), for working fluid to move the movable cylinder. The outer cylinder chamber is provided therein with an outer piston (32) having a front operation member (33) which is moved close to or away from the front stationary table and a rear operation member (34) which is moved close to or away from the rear stationary table. The outer cylinder chamber is also provided with an outer rear inlet (35) which is connected to the inner rear outlet and an outer front inlet (36) which is connected to the inner front outlet, for the working fluid to move the outer piston.

Abstract: A movable cylinder (20) is provided with an inner cylinder chamber (21) and an outer cylinder chamber (31) which surrounds the inner cylinder chamber. The inner cylinder chamber is provided with an inner piston (22) inserted therein, which is integrally secured to the stationary rods. The inner cylinder chamber is also provided with an inner front inlet (25), an inner rear inlet (26), an inner rear outlet (27) and an inner front outlet (28), for working fluid to move the movable cylinder. The outer cylinder chamber is provided therein with an outer piston (32) having a front operation member (33) which is moved close to or away from the front stationary table and a rear operation member (34) which is moved close to or away from the rear stationary table. The outer cylinder chamber is also provided with an outer rear inlet (35) which is connected to the inner rear outlet and an outer front inlet (36) which is connected to the inner front outlet, for the working fluid to move the outer piston.

Abstract: A crystal oscillating device comprises an outer case having a longitudinal axis, a cavity, a pair of first surfaces extending along the longitudinal axis, a pair of second surfaces extending in a direction generally transverse to the longitudinal axis, a first opening portion in one of the first surfaces for providing access into the cavity, a second opening portion in one of the second surfaces, and a groove in the other of the second surfaces. A crystal oscillator is disposed in the cavity of the outer case and has lead terminals extending through the second opening portion of the outer case for electrically connecting the crystal oscillator to a circuit board. A bonding material is disposed in the cavity of the outer case for bonding the crystal oscillator to the outer case. A connecting member is disposed in the groove of the outer case for connecting the outer case to the circuit board.