Abstract: A three-dimensional printing apparatus includes a movable member with a holder secured thereto, a sensor detecting whether a position of the movable member is equal to or higher than a first position or is lower than the first position, a storage device storing an origin position lower than the first position by a first distance, and a determination device determining whether deviation from the origin position has occurred. The determination device includes a first moving unit moving the movable member to the origin position, a second moving unit moving the movable member toward a second position, which is higher than the origin position by a sum of the first distance and a second distance, and a first determination unit determining that deviation from the origin position has occurred unless the sensor detects that the position of the movable member is equal to or higher than the first position before the movable member reaches the second position.

Abstract: A three-dimensional object preview device includes a cross-sectional image data generation section configured to generate cross-sectional image data representing a cross-sectional shape of each layer of a three-dimensional object, a two-dimensional coordinate data acquisition section configured to acquire first two-dimensional coordinate data from the cross-sectional image data, a two-dimensional coordinate data conversion section configured to convert, using triangulation, the first two-dimensional coordinate data into second two-dimensional coordinate data, a three-dimensional coordinate data generation section configured to add Z-axis coordinate information to the second two-dimensional coordinate data to generate three-dimensional coordinate data, a layer image data generation section configured to add layer thickness information to the three-dimensional coordinate data, thus generating layer image data, a printing image data generation section configured to generate, using the layer image data, printing

Abstract: A three-dimensional printing apparatus that forms a three-dimensional object using cross-sectional shapes of the object includes a controller that is configured or programmed to include a dividing unit that divides a cross-sectional shape into a plurality of blocks, a shape determining unit that determines whether one of the blocks has a predetermined shape and defines the block having the predetermined shape as a characteristic block, a count determining unit that determines whether the proportion of the number of the characteristic blocks to the total number of the blocks is equal to or greater than a predetermined proportion, and a light application unit that sets the energy of light from a light source to a first energy or to a second energy being lower than the first energy depending on the proportion, when applying the light to a photocurable resin in a region corresponding to the characteristic blocks.

Abstract: A three-dimensional printing apparatus receives or generates three-dimensional data representing a shape of a three-dimensional object to be formed, and generates cross-sectional image data from the three-dimensional data to form the three-dimensional object in accordance with the generated cross-sectional image data. The apparatus includes a display that presents images, a generator that adds thickness information to the cross-sectional image data of each layer of the object, thus generating layer image data three-dimensionally representing each layer of the object, an output interface that outputs the generated layer image data, and a display controller that causes the display to present a first image upon formation of a predetermined layer of the object in accordance with the cross-sectional image data of the predetermined layer. The first image is based on the layer image data of the predetermined layer output from the output.

Abstract: A stamping device includes a stamping data generator configured to create stamping data to form a stamp image on a surface of a processing target, a positioning data generator configured to create positioning data to position the processing target, and a controller configured or programmed to control an operation of the processing tool. The controller includes a first controller configured or programmed to control the processing tool such that stamping is performed, based on the positioning data at a first stamping energy, on the processing target including a protective sheet attached thereto in a predetermined area including a stamping area where the stamp image is to be formed, and a second controller configured or programmed to control the processing tool such that stamping is performed, based on the stamping data at a second stamping energy equal to or different from the first stamping energy, on the processing tool in a state of having the protective sheet peeled off therefrom.

Abstract: A dust cover assembly including: a dust cover made of resin and having a bellows tube portion; and an upper insulator made of rubber attached to a top end of the dust cover. An engaging tube portion is integrally formed with an upper part of the bellows tube portion of the dust cover. At least one engaging groove opens onto an outer peripheral face of the engaging tube portion and extends in a circumferential direction. At least one locking protrusion is formed on an inner peripheral face of the upper insulator having an annular shape and protrudes toward an inner peripheral side, while extending in the circumferential direction. The engaging tube portion of the dust cover is inserted into the upper insulator, while the locking protrusion is inserted into the engaging groove and is locked therein in an axial direction.

Abstract: A three-dimensional printing system calculates a resin amount required to print a three-dimensional object by curing a liquid photo-curable resin and sequentially stacking layers of the cured resin each having a predetermined cross-sectional shape. The system includes a first storage section configured to store information of a three-dimensional object, and information of an auxiliary member that supports the three-dimensional object, a first calculation section configured to calculate a resin amount necessary to print the three-dimensional object and a resin amount necessary to print the auxiliary member based on the information of the three-dimensional object and the auxiliary member stored in the first storage section, an output section configured to output a first resin amount that is the sum of the calculated resin amounts necessary to print the three-dimensional object and the auxiliary member, and a three-dimensional printing apparatus.

Abstract: A three-dimensional object preview device includes a cross-sectional image data generation section configured to generate cross-sectional image data representing a cross-sectional shape of each layer of a three-dimensional object, a two-dimensional coordinate data acquisition section configured to acquire first two-dimensional coordinate data from the cross-sectional image data, a two-dimensional coordinate data conversion section configured to convert, using triangulation, the first two-dimensional coordinate data into second two-dimensional coordinate data, a three-dimensional coordinate data generation section configured to add Z-axis coordinate information to the second two-dimensional coordinate data to generate three-dimensional coordinate data, a layer image data generation section configured to add layer thickness information to the three-dimensional coordinate data, thus generating layer image data, a printing image data generation section configured to generate, using the layer image data, printing

Abstract: When first cross-sectional image data representing a target model corresponding to a shape of a three-dimensional printing object, and second cross-sectional image data representing both of the target model and a support model corresponding to a shape of a member assisting the creation of the three-dimensional printing object, are recognized to match each other by at least a predetermined ratio, the second cross-sectional image data is stored on storage means as third cross-sectional image data. By contrast, when the first cross-sectional image data and the second cross-sectional image data are recognized not to match each other by at least the predetermined ratio, synthesis data of the first cross-sectional image data and the second cross-sectional image data is stored on the storage medium as the third cross-sectional image data. The three-dimensional printing object is created based on the third cross-sectional image data.

Abstract: The present invention provides a method for making it possible to easily and simply measure approximate concentration of substitutional carbon impurities in a desired position in a polycrystalline silicon rod. A polycrystalline silicon plate is sliced out from a polycrystalline silicon rod and both surfaces of the polycrystalline silicon plate are mirror-polished to reduce the polycrystalline silicon plate to thickness of 2.12±0.01 mm. A calibration curve is created according to an infrared absorption spectroscopy and on the basis of a standard measurement method using a single crystal silicon standard sample having known substitutional carbon concentration and thickness of 2.00±0.

Abstract: A machine tool for machining a workpiece is provided with a cutting tool holder for holding a cutting tool and a rotation mechanism for holding the workpiece. One or both of the cutting tool holder and the rotation mechanism are movable on multiple axes so that the cutting tool is movable relative to the workpiece in multiple axial directions. A control device is provided for controlling the movement of one or both of the cutting tool holder and the rotation mechanism to synchronously vibrate the workpiece and the cutting tool relative to each other at a low frequency in multiple axial directions.

Abstract: The present invention provides a method for making it possible to easily and simply measure approximate concentration of substitutional carbon impurities in a desired position in a polycrystalline silicon rod. A polycrystalline silicon plate is sliced out from a polycrystalline silicon rod and both surfaces of the polycrystalline silicon plate are mirror-polished to reduce the polycrystalline silicon plate to thickness of 2.12±0.01 mm. A calibration curve is created according to an infrared absorption spectroscopy and on the basis of a standard measurement method using a single crystal silicon standard sample having known substitutional carbon concentration and thickness of 2.00±0.

Abstract: Semi-tubular portions of two partition members partitioning a bushing body into an outer rubber portion and an inner rubber portion are asymmetrically arranged with respect to a reference plane containing a central axis of the bushing body and parallel to two attachment surfaces of a bracket. In addition, each of the semi-tubular portions is configured to have a length equal to or larger than a diameter of a stabilizer bar, the length being from one end to the other end in a circumferential direction of the semi-tubular portion in a projection view obtained by projecting the semi-tubular portion to a horizontal surface in a vertical direction.

Abstract: Semi-tubular portions of two partition members partitioning a bushing body into an outer rubber portion and an inner rubber portion are asymmetrically arranged with respect to a reference plane containing a central axis of the bushing body and parallel to two attachment surfaces of a bracket. In addition, each of the semi-tubular portions is configured to have a length equal to or larger than a diameter of a stabilizer bar, the length being from one end to the other end in a circumferential direction of the semi-tubular portion in a projection view obtained by projecting the semi-tubular portion to a horizontal surface in a vertical direction.

Abstract: A stabilizer bushing is provided which effectively reduces a torsional friction between a bushing body and a stabilizer bar. The stabilizer bushing includes a bushing body 16 made of a tubular elastic body, a sliding member 42 fixed to an inner circumferential surface of the tubular elastic body, and two partition members 26, 26 embedded in and bonded to a radially middle area of the bushing body 16. The partition members 26, 26 divide the bushing body 16 into an inner rubber portion 38 that is thin enough not to be elastically-deformed by a load applied thereto and an outer rubber portion 40 that is thicker than the inner rubber portion 38. Further, each of the partition members 26, 26 includes through holes 36a, 36b, 36c that are located so as to divide the partition member into a plurality of sections both in the axial and circumferential directions.

Abstract: A stabilizer bushing is provided which effectively reduces a torsional friction between a bushing body and a stabilizer bar. The stabilizer bushing includes a bushing body 16 made of a tubular elastic body, a sliding member 42 fixed to an inner circumferential surface of the tubular elastic body, and two partition members 26, 26 embedded in and bonded to a radially middle area of the bushing body 16. The partition members 26, 26 divide the bushing body 16 into an inner rubber portion 38 that is thin enough not to be elastically-deformed by a load applied thereto and an outer rubber portion 40 that is thicker than the inner rubber portion 38. Further, each of the partition members 26, 26 includes through holes 36a, 36b, 36c that are located so as to divide the partition member into a plurality of sections both in the axial and circumferential directions.

Abstract: A work having a portion to be ground, such as a tapered surface, is ground by a grinder driven by a driving device. During grinding operation, coolant is supplied to a grinding surface of the grinder and the portion to be ground. After the grinding operation is completed, the coolant is continued to be supplied for removing sludge on the grinder while the grinder is leaving the work and returning to its original position. The coolant may be pressurized to a higher level when it is supplied for removing the sludge than when it is supplied during the grinding operation. The number of works that have been already ground may be counted, and the coolant for removing the sludge may be supplied only when the number of works exceeds a predetermined number. Alternatively, the sludge is removed by brushing when the number of works does not reach the predetermined number.

Abstract: An object of the present invention is to provide a medicine wrapping machine which wraps each administered amount of a medicine in a medicine wrapping sheet, and enables easy opening even by an aged person or a child. The medicine wrapping machine uses a belt-shaped medicine wrapping sheet, and forms a plurality of divided wrapping bags continuous in a state of containing medicines therein and separated at the time of taking the medicines to wrap the medicines. A raw material of the medicine wrapping sheet is a belt-shaped transparent composite plastic sheet which includes a polyethylene terephthalate (PET) sheet or a biaxially oriented polypropylene sheet, and a minute flaw is formed on the polyethylene terephthalate sheet or the biaxially oriented polypropylene sheet.

Abstract: A radar system configured to present plural echo signals in a mixed form includes an image mixer for determining display colors for individual radar image regions based on combinations of the levels of the echo signals obtained from the same locations. The image mixer classifies the combinations of the levels of the echo signals into a predetermined number of groups according to the number of the echo signals to be mixed and selects display colors for the individual groups as well as shades of each display color according to the levels of the echo signals to be mixed.

Abstract: A work having a portion to be ground, such as a tapered surface, is ground by a grinder driven by a driving device. During grinding operation, coolant is supplied to a grinding surface of the grinder and the portion to be ground. After the grinding operation is completed, the coolant is continued to be supplied for removing sludge on the grinder while the grinder is leaving the work and returning to its original position. The coolant may be pressurized to a higher level when it is supplied for removing the sludge than when it is supplied during the grinding operation. The number of works that have been already ground may be counted, and the coolant for removing the sludge may be supplied only when the number of works exceeds a predetermined number. Alternatively, the sludge is removed by brushing when the number of works does not reach the predetermined number.