Abstract: Specifically, provided is a computer system, and its management method, including multiple nodes for providing to a host system a storage area to be used for reading and writing data, and respectively acquiring a snapshot at a pre-set time, and which configures a node group from a part or all of the nodes among the multiple nodes and makes data redundant in node units in the node group. With the foregoing computer system and its management method, an access log is acquired from the respective nodes configuring the node group, and the usage of the snapshot in the node group is determined based on the acquired access log of the respective nodes, and the acquisition time of the snapshot is changed in a part or all of the nodes among the nodes configuring the node group based on the determination result.

Abstract: For realizing an optimum failover in NAS, this invention provides a computer system including: a first computer; a second computer; a third computer; and a storage device coupled to the plurality of computers via a network, in which: the first computer executes, upon reception of an access request to the storage device from a client computer coupled to the plurality of computers, the requested access; and transmits to the client computer a response to the access request; the second computer judges whether a failure has occurred in the first computer; obtains load information of the second computer; obtains load information of the third computer from the third computer; and transmits a change request to the third computer when the obtained load information satisfies a predetermined condition; and the third computer judges whether a failure has occurred in the first computer when the change request is received from the second computer.

Abstract: An optical tomographic imaging apparatus is provided which includes a low-resolution mode for rough imaging and a high-resolution mode for obtaining detailed images. In particular, an optical tomographic imaging apparatus is provided which enables tomographic imaging during a high-resolution mode to be performed at higher speeds. An imaging apparatus according to the present invention captures an optical interference tomographic image based on a combined beam that combines a return beam from an object irradiated by a measuring beam and a reference beam corresponding to the measuring beam. The imaging apparatus according to the present invention further includes a beam diameter changing unit for changing a beam diameter of the measuring beam. Furthermore, the imaging apparatus according to the present invention includes a detection unit configured to detect the combined beam at a resolution according to the beam diameter.

Abstract: Provided is a computer system which includes plurality of computers including a first, second, and third computers, and a storage device coupled to the plurality of computers via a network, in which: the first computer is configured to: access data in a storage area of the storage device; cut, based on settings information and loads on the plurality of computers, at least a part of electric power supplied to the first computer; and send, before cutting the at least a part of electric power supplied to the first computer, a takeover request to the second computer; and the second computer accesses the data within the storage area after receiving the takeover request. With the configuration as described above, power consumption in NAS is reduced.

Abstract: A plunger is inserted into a slide hole of a cylinder body provided between a pressurizing chamber and a drive cam, so as to reciprocate within the slide hole. The drive cam and a coil spring move the plunger toward the drive cam so that fuel is sucked into the pressurizing chamber, and also move the plunger toward the pressurizing chamber so that the fuel in the pressurizing chamber is pressurized. A clearance between the plunger and a wall of the slide hole forms a flow passage of the fuel discharged from the pressurizing chamber. In the high-pressure fuel pump constructed as above, a fluid reservoir is provided in the flow passage. The capacity of the fluid reservoir increases as the plunger moves toward the drive cam, and decreases as the plunger moves toward the pressurizing chamber.

Abstract: Provided is a computer system which includes plurality of computers including a first, second, and third computers, and a storage device coupled to the plurality of computers via a network, in which: the first computer is configured to: access data in a storage area of the storage device; cut, based on settings information and loads on the plurality of computers, at least a part of electric power supplied to the first computer; and send, before cutting the at least a part of electric power supplied to the first computer, a takeover request to the second computer; and the second computer accesses the data within the storage area after receiving the takeover request. With the configuration as described above, power consumption in NAS is reduced.

Abstract: For realizing an optimum failover in NAS, this invention provides a computer system including: a first computer; a second computer; a third computer; and a storage device coupled to the plurality of computers via a network, in which: the first computer executes, upon reception of an access request to the storage device from a client computer coupled to the plurality of computers, the requested access; and transmits to the client computer a response to the access request; the second computer judges whether a failure has occurred in the first computer; obtains load information of the second computer; obtains load information of the third computer from the third computer; and transmits a change request to the third computer when the obtained load information satisfies a predetermined condition; and the third computer judges whether a failure has occurred in the first computer when the change request is received from the second computer.

Abstract: A method for producing an optical coupling element of the present invention includes the steps of: determining the mounting position of a light-emitting element and a light-receiving element on the front surface of the header portion of each lead frame based on the current amplification factor of the light-receiving element to be mounted; determining the bending angle of each header portion and a distance between the two elements after being bent by calculation such that a predetermined current transfer ratio and an internal insulation distance required by the optical coupling element to be produced are obtained; detecting the determined mounting position by detecting intersections of V-shaped grooves in a grid pattern formed on the front surface of each header portion; mounting each element onto the detected position of the front surface of each header portion while detecting the concave-convex shape; and bending each header portion after mounting each element at the bending angle determined by calculation.

Abstract: In an embodiment of the present invention, in an optical coupling element comprising a light emitting element and a light receiving element, a transparent sealing portion for sealing these elements, an opaque sealing portion that covers the transparent sealing portion, and terminals that are connected individually to the electrodes of the light emitting element and the light receiving element and are drawn out from a side face of the opaque sealing portion, the creeping distance being the sum of the gap distance between these terminals and their opposite side faces and the distance between the bottom edges of the side faces, a creeping distance extension face for extending the creeping distance is provided between the bottom face and the side face of the opaque sealing portion, and the gap distance between the terminals and the edge formed by the bottom face and this creeping distance extension face is set to a specific distance.

Abstract: A fuel injection device 1A includes a nozzle body 10 equipped with multiple injection apertures 12, a needle valve 20 arranged in the nozzle body, a fuel swirl portion 24 in which fuel FE is swirled along an inner wall surface of the nozzle body, and a guide portion 22 applying swirl force to the fuel and then guiding the fuel to the fuel swirl portion, the fuel swirl portion being arranged at a position at which the fuel swirl portion partially overlaps with the injection apertures. When the needle valve is at a low lift position, the fuel swirl portion overlaps with parts of the injection apertures so that the shape of sprayed fuel can be formed in diffusive spray having a wide spray angle. When the needle valve is at a high lift position, the shape of sprayed fuel can be formed in column-shaped spray having a narrow spray angle.

Abstract: A pin 6 provided at a horn 5 for ultrasonic welding is press-fitted to the depth reaching the light guide plate 1 breaking through the various kind of sheets 2 and 3 from surface side thereof. Another embodiment of the invention is that pins 25 constructed so as to break through various kind of sheets 22 and 23 on the surface of the plate are provided on the light guide plate 21, and the various kind of sheets 22 and 23 are fixed on the light guide plate 1 by distorting by caulking using ultrasonic vibration of the tip end of the pin.

Abstract: There is provided an ophthalmologic apparatus capable of changing a gain to a digitized image signal according to observation and image taking operations by rewriting data in an LUT or selecting a suitable LUT from a plurality of LUTs.

Abstract: A plunger is inserted into a slide hole of a cylinder body provided between a pressurizing chamber and a drive cam, so as to reciprocate within the slide hole. The drive cam and a coil spring move the plunger toward the drive cam so that fuel is sucked into the pressurizing chamber, and also move the plunger toward the pressurizing chamber so that the fuel in the pressurizing chamber is pressurized. A clearance between the plunger and a wall of the slide hole forms a flow passage of the fuel discharged from the pressurizing chamber. In the high-pressure fuel pump constructed as above, a fluid reservoir is provided in the flow passage. The capacity of the fluid reservoir increases as the plunger moves toward the drive cam, and decreases as the plunger moves toward the pressurizing chamber.

Abstract: A pin 6 provided at a horn 5 for ultrasonic welding is press-fitted to the depth reaching the light guide plate 1 breaking through the various kind of sheets 2 and 3 from surface side thereof. Another embodiment of the invention is that pins 25 constructed so as to break through various kind of sheets 22 and 23 on the surface of the plate are provided on the light guide plate 21, and the various kind of sheets 22 and 23 are fixed on the light guide plate 1 by distorting by caulking using ultrasonic vibration of the tip end of the pin.

Abstract: A pin 6 provided at a horn 5 for ultrasonic welding is press-fitted to the depth reaching the light guide plate 1 breaking through the various kind of sheets 2 and 3 from surface side thereof. Another embodiment of the invention is that pins 25 constructed so as to break through various kind of sheets 22 and 23 on the surface of the plate are provided on the light guide plate 21, and the various kind of sheets 22 and 23 are fixed on the light guide plate 1 by distorting by caulking using ultrasonic vibration of the tip end of the pin.

Abstract: A pin 6 provided at a horn 5 for ultrasonic welding is press-fitted to the depth reaching the light guide plate 1 breaking through the various kind of sheets 2 and 3 from surface side thereof. Another embodiment of the invention is that pins 25 constructed so as to break through various kind of sheets 22 and 23 on the surface of the plate are provided on the light guide plate 21, and the various kind of sheets 22 and 23 are fixed on the light guide plate 1 by distorting by caulking using ultrasonic vibration of the tip end of the pin.

Abstract: A light emitting device includes a first patterned electrode 12 and a second patterned electrode 13 both of which are formed on a wiring board 11, an LED chip 19 mounted on the second patterned electrode 13, a metal wire 20 electrically connecting the LED chip 19 and the first patterned electrode 12 to each other, and a lens member 21 made of a transparent synthetic resin for packaging the LED chip 19 and the metal wire 20. The first patterned electrode 12 is circular and formed with a cutout 14 at the center thereof. The second patterned electrode 13 is arranged in the cutout 14. With this arrangement, the lens member 21 can be formed into a predetermined configuration, while the reflection of light by the patterned electrodes can be ensured.

Abstract: A passive keyless entry device includes an in-vehicle transceiver and a portable transceiver. The in-vehicle transceiver has a clock signal generating circuit, a control signal generating signal that outputs a binary control signal having positive and negative values, a modulation circuit that forms a pulse modulation signal by modulating the clock signals by the control signal, and a transmission circuit that has half-bridge circuits, a low-frequency antenna being connected to output ends of the half-bridge circuits. The control signal changes from positive to negative value slightly later than the usual time. During a period from the usual time to the slightly later time, the clock signals modulated by the control signal are inverted clock signals that are shifted by half wavelength with respect to the usual clock signals.