Abstract: A semiconductor substrate includes a support substrate, a mask pattern located above the support substrate and including a mask portion, a seed portion locally located in a layer above the support substrate in a plan view, and a semiconductor part including a GaN-based semiconductor and located above the mask pattern to be in contact with the seed portion and the mask portion.

Abstract: A semiconductor substrate includes a heterogeneous substrate, a mask layer having an opening portion and a mask portion, a seed portion overlapping the opening portion, and a semiconductor layer including a GaN-based semiconductor and disposed on the seed portion and the mask portion. An upper surface of an effective portion of the semiconductor layer includes at least one low-level defective region with a size of 10 ?m in a first direction along a width direction of the opening portion and 10 ?m in a second direction orthogonal to the first direction, and a line defect is not measured by a CL method in the low-level defective region.

Abstract: An object is to provide a surgical assistance device and a surgery support system that can ensure a sufficient field of view during an arthroscopic surgery. The object can be achieved by a surgical assistance device for capturing an image inside a body cavity. The surgical assistance device includes: N image capturing units; holding parts, each of the holding parts holding each of the image capturing units; and a base member, and N is an integer that is greater than or equal to three.

Abstract: A method of manufacturing a semiconductor element includes forming a mask on a front surface of a substrate, the mask having an opening to expose the front surface; growing a first semiconductor layer by epitaxially growing a semiconductor along the mask, starting from the front surface exposed through the opening, and growing a second semiconductor layer on a surface of the first semiconductor layer located opposite to the substrate in a layering direction, and providing an electrode on a surface of the second semiconductor layer located opposite to the surface of the first semiconductor layer in the layering direction. A width from an end portion of the surface to the electrode is smaller than a width of the mask.

Abstract: Provided is a protective garment comprising a pair of sleeve parts and a body part, wherein the protective garment has a first fabric and a second fabric and comprises one or more joint covering parts covering at least one of a wearer's elbow joint or knee joint, wherein the first fabric has a water vapor permeability of 200 g/m2/hr or more, a virus barrier property of class 4 or higher, a blood barrier property of class 4 or higher, and a bending resistance of 60 mm or more and 110 mm or less, wherein the second fabric is arranged on the joint covering part and has a virus barrier property of class 4 or higher, a blood barrier property of class 4 or more, and a bending resistance of 20 mm or more and 50 mm or less, and wherein a surface area of the first fabric with respect to a total surface area of the protective garment is 15% or more and 70% or less.

Abstract: Provided is a protective clothing comprising a pair of sleeve parts and a body part, wherein one of the pair of sleeve parts comprises a part A covering an elbow joint of a wearer's right arm at the time of wearing the protective clothing, wherein the other one of the pair of sleeve parts comprises a part B covering an elbow joint of the wearer's left arm at the time of wearing the protective clothing, wherein the body part comprises a part C covering the wearer's greater pectoral muscle at the time of wearing the protective clothing, wherein the protective clothing has a first fabric having an air permeability of 30 cm3/cm2/sec or more and a second fabric having a bending resistance of 80 mm or less, wherein the first fabric is arranged on the part C and has a laminated structure of a first spunbonded non-woven fabric and a first melt-blown non-woven fabric, and wherein the second fabric is arranged on the part A and the part B and has a laminated structure of a second spunbonded non-woven fabric and a secon

Abstract: An image capturing unit of a processing apparatus includes a light field camera, an image recorder for recording an image of the workpiece captured by the light field camera, a two-dimensional image processor for generating two-dimensional multi-focal-point images from the image recorded by the image recorder, and a three-dimensional image processor for producing a three-dimensional image by layering the two-dimensional multi-focal-point images. The light field camera includes a main lens, a microlens array having a plurality of microlenses for converging light from the main lens, and an image sensor for capturing the light converged by the microlens array.

Abstract: Protective clothing is described which is not only excellent in wearing comfortability but also suppresses the occurrence of dew condensation even when accouterments are worn, where the protective clothing is coupled with a hood that is composed of a nonwoven fabric having a quantity of ventilation of 20 cm3/cm2/sec or more and 150 cm3/cm2/sec or less and a nonwoven fabric having a quantity of ventilation of 0 cm3/cm2/sec or more and 19 cm3/cm2/sec or less, the hood having an opening at a position to be center of a wearer's face and belt-shaped materials at an upper side of the opening and at lower portions of right and left sides of the opening, where the two belt-shaped materials are coupled with or are configured to be couplable with each other at right and left side heads.

Abstract: Provided is a protective garment that ensures facilitated doffing. A protective garment 10 according to one embodiment includes an upper part 12 of the garment, a lower part 14 of the garment, and an open/close portion 24. The upper part 12 of the garment includes a body portion 16, a pair of sleeve portions 18a, 18b, and a hood portion 20. The lower part 14 of the garment is connected to the upper part of garment. The open/close portion 24 is formed in a front body portion 16a of the body portion for donning and doffing the protective garment. A stretchable portion 32 is formed in a boundary between a back body portion of the body portion and the hood portion.

Abstract: A protective hood that can be easily worn and that has an excellent degree of contact is described, where the protective hood includes: a hood that covers the head of the wearer; an opening formed at a position corresponding to the face of the wearer; and a latching tool A that can be latched around the head of the wearer and is provided on the upper side of the opening.

Abstract: A dustproof fabric which includes an antistatic dustproof fabric having excellent antistatic properties, a high air permeability and high-level dustproof properties is provided. The antistatic dustproof fabric includes two or more fiber layers. At least one of the two or more fiber layers is a fiber layer 1 containing an antistatic agent. The polarity of the antistatic agent is opposite to the polarity of the zeta potential of the fiber layer 1. At least one of the two or more fiber layers is a fiber layer 2 which is electrically charged.

Abstract: A dustproof fabric which includes an antistatic dustproof fabric having excellent antistatic properties, a high air permeability and high-level dustproof properties is provided. The antistatic dustproof fabric includes two or more fiber layers. At least one of the two or more fiber layers is a first fiber layer which contains a nonionic antistatic agent; and at least one of the two or more fiber layers is a second fiber layer which is electrically charged.

Abstract: An object of the present invention is to provide a waterproof moisture-permeable fabric suppressed in appearance abnormality and deterioration in barrier properties. A waterproof moisture-permeable fabric including a protective layer and a polyethylene microporous film that are stacked on each other with a synthetic rubber-based hot-melt adhesive, an olefinic hot-melt adhesive, or a composite hot-melt adhesive interposed therebetween, having a nonpolar oil content of 2 g/m2 or less, and a polar oil content of 0.01 g/m2 or more and 6 g/m2 or less.

Abstract: A seed crystal holder according to the present invention for growing a crystal by a solution method, and that includes a seed crystal made of silicon carbide; a holding member above the seed crystal; a bonding agent configured to fix the seed crystal and the holding member; and a sheet member made of carbon which is interposed in the bonding agent in a thickness direction, and which has an outer periphery smaller than an outer periphery of the seed crystal in a plan view.

Abstract: An object of the present invention is to provide a waterproof moisture-permeable fabric suppressed in appearance abnormality and deterioration in barrier properties. A waterproof moisture-permeable fabric including a protective layer and a polyethylene microporous film that are stacked on each other with a synthetic rubber-based hot-melt adhesive, an olefinic hot-melt adhesive, or a composite hot-melt adhesive interposed therebetween, having a nonpolar oil content of 2 g/m2 or less, and a polar oil content of 0.01 g/m2 or more and 6 g/m2 or less.

Abstract: A seed crystal holder according to the present invention for growing a crystal by a solution method, and that includes a seed crystal made of silicon carbide; a holding member above the seed crystal; a bonding agent configured to fix the seed crystal and the holding member; and a sheet member made of carbon which is interposed in the bonding agent in a thickness direction, and which has an outer periphery smaller than an outer periphery of the seed crystal in a plan view.

Abstract: The present invention provides a protective clothing having high dust proof property which prevents powder dust from entering into the clothing and having high air permeability for comfortable work, in which the temperature does not rise easily even in summer. A dust-proof clothing using the following dust-proof material, wherein i) the dust-proof material has a fiber layer and an electret nonwoven fabric layer, and a total number of the fiber layer and the electret nonwoven fabric layer is 2 or more; and ii) in the dust-proof material, the fiber layer and the electret nonwoven fabric layer, which are adjacent to each other, are adhered on a region having an area ratio of 5% or more and 10% or less.

Abstract: A rolling bearing includes: a first raceway member having a first annular raceway surface; a second raceway member having a second annular raceway surface opposing the first raceway surface; a plurality of rolling elements arranged between the first raceway surface and the second raceway surface so as to roll; and a guide member formed integrally with or separately from the second raceway surface. The guide member including: an annular guide surface arranged at a position different form the second raceway surface in an axial direction; a plurality of flow paths which are separately provided in the axial direction and in which compressed air for supplying lubricating oil flows; and discharge openings which spray the compressed air to a guided surface. An annular cage that holds the plurality of rolling elements at given intervals in a circumferential direction and has the guided surface which opposes the guide surface such that the guided surface can slidably contact the guide surface.

Abstract: A guide piece projects from an outside surface of a cage bar of a cage so as to make sliding contact with a raceway surface of an outer ring. As the cage rotates, the guide piece operates to guide the rotation of the cage while removing an excess grease on the raceway surface and transferring the excess grease to axially opposite ends of the outer ring. The guide piece is formed with a through-hole extending from an inner periphery of the cage to an edge of the guide piece for supplying the lubricant from the inner periphery side of the cage to the raceway surface.

Abstract: A cylindrical roller bearing including an inner ring including a raceway surface on an outer periphery thereof an outer ring including a raceway surface on an inner periphery thereof a plurality of cylindrical rollers rollably disposed between the raceway surface of the inner ring and the raceway surface of the outer ring; and a cage for circumferentially retaining the cylindrical rollers at predetermined intervals. The cage is circumferentially provided with a plurality of guide pieces on an outer periphery of the cage at predetermined intervals, a guide piece of the plurality of guide pieces projecting toward the raceway surface of the outer ring to form a sliding contact portion which makes sliding contact with the raceway surface for guiding the rotation of the cage and for removing an excess lubricant on the raceway surface.