Abstract: A microneedle array to be used instead of a syringe has, at a tip side of each microneedle, two or four puncture portions disposed facing each other. The puncture portions each have a part of a side surface of each microneedle as outer surfaces, respectively, and one of the puncture portions is shorter than the other(s). A housing section capable of holding a drug is formed by inner surfaces of the puncture portions of each microneedle. The housing section opens toward the tip side and lateral directions orthogonal to an axis core of each microneedle, and has a central bottom surface at a bottom end. The inner surfaces facing each other and forming the housing section of each microneedle each have a downward slope, with a width between the inner surfaces getting narrower as it goes down from tips of the respective puncture portions toward the central bottom surface.

Abstract: A microneedle array with a performance adequate to be used instead of a syringe has at a tip side of each microneedle 10 two puncture portions 14 and 15 disposed facing each other. The puncture portions 14 and 15 each have a part of a side surface of the microneedle 10 as outer surfaces 12 and 13, respectively, and one of the puncture portions 14 and 15 is shorter than the other. Surrounded by inner surfaces 16 and 17 of the puncture portions 14 and 15 facing each other, a housing section 19 capable of holding a drug is formed. The housing section 19 opens toward the tip side and both lateral directions along an axis core of the microneedle 10, and has a central bottom surface 18 at a bottom end.

Abstract: In an apparatus having a magnetic sensing type metal sensor arranged in spaced relation to a surface of metal under measurement and reciprocable in a predetermined direction, a tracing unit for driving the sensor in accordance with a change in the output of the sensor due to a change of position of the metal in the predetermined direction for causing the sensor to follow the surface position of the metal, and a measuring unit for measuring the surface position of the metal based on a current position of the sensor; a metal surface position measuring apparatus comprising a measuring and storing device for measuring a noise component in the output of the sensor due to factors other than a change of the surface position of the metal and storing the noise component, and correction device for correcting the output of the sensor by the stored noise component and causing the sensor to be moved in accordance with the corrected output.

Abstract: A coordinate reading device including magnetostrictive vibration transmission media to attain coordinate readings of analog figures. A fixed magnetizing coil is wound about or placed on the surface of the media to automatically magnetize the media. A preparatory exciting system excites the exciting coil of the media before an effective excitation pulse is applied to the coil by suitable delay circuits.

Abstract: In a continuous casting mold of a copper alloy havng a nickel layer plated on the mold cavity surface, wherein an alloy layer of nickel containing one of Co, Fe and Mn and 3-5 mm thickness replaces the Ni layer.

Abstract: A magnetic field sensor housed in a cooling device has an inner core body for measuring the behavior of a charge put in a shaft furnace, an inner casing for accommodating the inner core body therein, and an outer casing for accommodating the inner casing with a space for a circulating path of cooling medium therebetween. The inner core body consists of an exciter for exciting the charge put in the furnace, a magnetic field sensing member arranged in front of the exciter for detecting the exciting magnetic field generated from the exciter and a driving circuit arranged at the rear of the exciter for driving the sensing member.

Abstract: A system of detecting a change in the charge put in a metallurgical furnace or the like wherein an magnetic field generator and a magnetic sensing section of a magnetometer arranged along the central axis of the exciting magnetic field of the said magnetic field generator are fitted in place on and/or inserted into a hole of the wall of such a vessel, including a metallurgical furnace or the like, as is enclosed with the said wall, such a change in the exciting magnetic flux passing through the said magnetic sensing section as is given birth by the movement of the charge is picked up in the form of electrical signals, and, the movement, the velocity, the rate of travel, the thickness of the layer, fluctuations in the shape of the layer, the circumferential distribution, the classification, and so forth, of the said charge are enabled to be properly detected in an optional manner through corresponding changes in the said electrical signals.

Abstract: Continuous soldering of small elements along a line is achieved by a radiant beam spot lamp which moves intermittently along the line, and radiant energy is supplied only while the lamp is stopped to form partially overlapped heating zones.

Abstract: The orthogonal flux gate thin film magnetometer comprising an orthogonal flux gate utilizing a rotation magnetization mechanism consisting of a sensing coil wound on a plated wire formed by applying to a conductor a ferromagnetic thin film, an alternating excitation power means for exciting the thin film of the flux gate, an amplitude difference detection circuit means for detecting a difference between positive and negative asymmetrical peak values of the output voltage of the flux gate, and a control means for feedback of the output of the detection circuit to the sensing coil of the flux gate through a feedback circuit and for supplying the output of the control means to an indicating means. The magnitude and the polarity of the external magnetic field are sensed from the feedback current which erases the external magnetic field applied to the flux gate.

Abstract: A method of regulating the flow of molten metal through the pour opening of a vessel is disclosed which is characterized by a combination of a pair of load detecting elements and a contactor which is disposed between the load detecting elements such that there is effected control of a hydraulic cylinder for actuating a sliding control nozzle which is capable of moving bit-by-bit resulting in the fine regulation of the sliding control nozzle.

Abstract: A portable device for generating and tuning a whole tone scale comprising means for generating a signal having a frequency of a reference tone scale, first means for shaping an output of the signal generating means and means for converting the output of the first shaping means. The device further includes means for converting the audible tone of a musical instrument to be tuned into a train of electrical signals, means for frequency multiplying and dividing input signals, second means for shaping the output of the converting means, logic means for logically comparing the outputs of the first and the second shaping means to generate a train of signals each having a width corresponding to the frequency difference between the outputs of the first and the second shaping means, and means for indicating the output of the logic means.