Abstract: A linear motor armature according to an embodiment includes an armature coil and a cooling jacket. The cooling jacket is provided to surround the armature coil and has an internal space into which a refrigerant is supplied. The cooling jacket is formed in a thin plate shape having a structure in which a channel for supplying the refrigerant is provided in a multiple manner in its thickness direction.

Abstract: A sapphire wafer dividing method including a cut groove forming step of forming a plurality of cut grooves on the back side of a sapphire wafer along a plurality of crossing division lines formed on the front side where a light emitting layer is formed, a modified layer forming step of forming a plurality of modified layers inside the sapphire wafer along the division lines, and a dividing step of dividing the sapphire wafer into individual light emitting devices along the modified layers as a division start point, thereby chamfering the corners of the back side of each light emitting device owing to the formation of the cut grooves in the cut groove forming step.

Abstract: A sapphire wafer dividing method including a cut groove forming step of forming a plurality of cut grooves on the back side of a sapphire wafer along a plurality of crossing division lines formed on the front side where a light emitting layer is formed, a modified layer forming step of forming a plurality of modified layers inside the sapphire wafer along the division lines, and a dividing step of dividing the sapphire wafer into individual light emitting devices along the modified layers as a division start point, thereby chamfering the corners of the back side of each light emitting device owing to the formation of the cut grooves in the cut groove forming step.

Abstract: A linear motor armature according to an embodiment includes an armature coil and a cooling jacket. The cooling jacket is provided to surround the armature coil and has an internal space into which a refrigerant is supplied. The cooling jacket is formed in a thin plate shape having a structure in which a channel for supplying the refrigerant is provided in a multiple manner in its thickness direction.

Abstract: The invention provides a cutting method and a cutting apparatus that cuts without chipping a composite material consisting of laminated layers of crystal material and amorphous material, in which the amorphous material is cut with an ultrasonically vibrated cutting blade and the crystal material is cut with a cutting blade that does not ultrasonically vibrate. With such a method and apparatus, the crystal material portion and the amorphous material portion of the composite material can be cut cleanly without chipping.

Abstract: In a linear motor, a can has a two-layer structure including an inner can 2 and an outer can 3, and an inner passage 7 formed between an armature winding 9 and the inner can 2 and an outer passage 8 formed between the inner can 2 and the outer can 3 are constituted by each can. Communicating portions 7A and 8A for causing the inner passage 7 and the outer passage 8 to communicate with each other are provided in the vicinity of a refrigerant supply port 5 in each of the cans 2 and 3 in such a manner that a refrigerant supplied from the refrigerant supply port 5 branches into the inner passage 7 and the outer passage 8 and thus flows. Consequently, it is possible to obtain a linear motor armature and a linear motor having a high cooling capability which can prevent the deformation of the can by using a conventional inactive refrigerant to improve the passage for the refrigerant.

Abstract: The invention provides a cutting method and a cutting apparatus that cuts without chipping a composite material consisting of laminated layers of crystal material and amorphous material, in which the amorphous material is cut with an ultrasonically vibrated cutting blade and the crystal material is cut with a cutting blade that does not ultrasonically vibrate. With such a method and apparatus, the crystal material portion and the amorphous material portion of the composite material can be cut cleanly without chipping.

Abstract: In an area corresponding to, for example, the abdomen of an infant in infant clothing (1), for example, two slits (2) extending in the length direction are formed. On the back side of slit (2), a stretchable mesh material (3) is provided in a state where slit (2) is allowed to open. Preferably, tucks (5) are made on both sides of slit (2). With the configuration, the infant clothing can be used as street clothing without hesitation while having the function of an underwear, does not disturb abdominal respiration of an infant, does not become loose easily, and can excellently deal with sweat of the infant.

Abstract: One end of a terminal is formed in a tube shape, and a front end of a covered electric wire in which a part of a covering is peeled is inserted to the one end of the terminal, and is uniformly caulked from a periphery. A length of the peeled covering is shorter than a depth of the tube-like portion of the terminal. Accordingly, a part of the covering is received in the tube-like portion and caulked so as to serve as an operation of a packing, thereby preventing a water and an air from entering into an inner portion of the tube-like portion. Further, since the tube-like portion is uniformly caulked so as to be closely contact with the electric conductor, it is possible to obtain a comparatively large contact area, and it is possible to obtain a stable conduction.

Abstract: One end of a terminal is formed in a tube shape, and a front end of a covered electric wire in which a part of a covering is peeled is inserted to the one end of the terminal, and is uniformly caulked from a periphery. A length of the peeled covering is shorter than a depth of the tube-like portion of the terminal. Accordingly, a part of the covering is received in the tube-like portion and caulked so as to serve as an operation of a packing, thereby preventing a water and an air from entering into an inner portion of the tube-like portion. Further, since the tube-like portion is uniformly caulked so as to be closely contact with the electric conductor, it is possible to obtain a comparatively large contact area, and it is possible to obtain a stable conduction.

Abstract: A carbide dispersed, strengthened copper alloy includes copper as a major constituent, carbide particles, and a dispersing agent. The carbide particles consist of one or more carbides selected from chromium carbide, tungsten carbide, molybdenum carbide, and tantalum carbide. The dispersing agent consists of one or more elements selected from magnesium, chromium, silicon, and aluminum.

Abstract: A carbide dispersed, strengthened copper alloy includes copper as a major constituent, carbide particles, and a dispersing agent. The carbide particles consist of one or more carbides selected from chromium carbide, tungsten carbide, molybdenum carbide, and tantalum carbide. The dispersing agent consists of one or more elements selected from magnesium, chromium, silicon, and aluminum.

Abstract: A noncontacting power transfer apparatus, a noncontacting signal transfer apparatus, to be referred to below as a power coupler and a signal coupler, respectively, and a separate machine apparatus that uses these couplers are disclosed. The power coupler is composed of a primary side and a secondary side that are fixed to a static unit and rotatable unit of the machine apparatus, respectively, such that its output does not vary with arbitrary rotation by the rotatable unit. The signal coupler is composed of receiving side portion having a electric-to-light conversion device that converts an electric signal to an optical signal of rotational symmetry relative to the axis of rotation of the rotatable unit and a photoelectric conversion device that converts an optical signal to an electric signal. Accordingly, the rotatable unit can be supplied with power from the static unit even while rotating, and moreover, can communicate with the static unit.

Abstract: A noncontacting power transfer apparatus, a noncontacting signal transfer apparatus and a separate machine apparatus that uses these couplers are disclosed. The power coupler is composed of a primary side and a secondary side that are fixed to a static unit and rotatable unit of the machine apparatus, respectively, such that its output does not vary with arbitrary rotation by the rotatable unit. The signal coupler is composed of receiving side portion having a electric-to-light conversion device that converts an electric signal to an optical signal of rotational symmetry relative to the axis of rotation of the rotatable unit and a photoelectric conversion device that converts an optical signal to an electric signal. Accordingly, the rotatable unit can be supplied with power from the static unit even while rotating, and moreover, can communicate with the static unit. Further, the rotatable unit can be easily attached to the static unit and can be removed from the static unit.

Abstract: A noncontacting power transfer apparatus, a noncontacting signal transfer apparatus(to be referred to below as a power coupler and a signal coupler, respectively), and a separate machine apparatus that uses these couplers are disclosed. The power coupler is composed of a primary side and a secondary side that are fixed to a static unit and rotatable unit of the machine apparatus, respectively, such that its output does not vary with arbitrary rotation by the rotatable unit. The signal coupler is composed of receiving side portion having a electric-to-light conversion device that converts an electric signal to an optical signal of rotational symmetry relative to the axis of rotation of the rotatable unit and a photoelectric conversion device that converts an optical signal to an electric signal. Accordingly, the rotatable unit can be supplied with power from the static unit even while rotating, and moreover, can communicate with the static unit.

Abstract: A noncontacting power transfer apparatus, a noncontacting signal transfer apparatus, and a separate machine apparatus that uses these couplers are disclosed. The power coupler is composed of a primary side and a secondary side that are fixed to a static unit and rotatable unit of the machine apparatus, respectively, such that its output does not vary with arbitrary rotation by the rotatable unit. The signal coupler is composed of receiving side portion having a electric-to-light conversion device that converts an electric signal to an optical signal of rotational symmetry relative to the axis of rotation of the rotatable unit and a photoelectric conversion device that converts an optical signal to an electric signal. Accordingly, the rotatable unit can be supplied with power from the static unit even while rotating, and moreover, can communicate with the static unit. Further, the rotatable unit can be easily attached to the static unit and can be removed from the static unit.

Abstract: A non-contact type load-dispatching equipment having a power supply side core and a receiving side core both provided with a plurality of teeth wound by winding, each of teeth top surfaces formed by respective teeth is oppositely positioned to each other via a gap being magnetically connected for supplying power without contact at the time of power supply, whereinteeth top surfaces of respective teeth of the power supply side core and receiving side core are disposed oppositely on the respective circumferences with a gap therebetween which allows coupling-uncoupling of the cores therethrough;light signal generating circuit for generating light signals which indicate receiving side voltages is provided in the power receiving side;voltage signal generation circuit which generates corresponding voltage signals on receiving the light signals and cut-off circuit for cutting off power supply when the generated voltage signal is lower than the predetermined value, where the voltage signal generation and cut-off circ