Abstract: An object of the present invention is to intensify the strength of a magnetic field to be applied to a subject. An auxiliary coil is interposed between a body coil incorporated in a magnet assembly included in an MRI apparatus and the subject. When RF pulses are transmitted from the body coil, an induced current flows through the auxiliary coil and generates a magnetic field. The magnetic field excites the subject near the subject.

Abstract: There is provided a method or structure of carrying out optical measurement for the change of the state of the reactive sample solution at two or more measurement points of the channel simultaneously and continuously in a flow system reaction in which the reactive proceeds according to the elapsed time for movement. A sample containing nucleic acids is made to flow to a channel of which a temperature control means controlling the temperature of the passing area so that the temperature changes in the repetitive pattern, and the change in the state of the sample containing nucleic acids flowing on the channel is detected by optical detection means at two or more places of the channel. The channel can be placed in the analysis area on the disk driven by rotation, and information of the reactive sample solution in the channel can be detected simultaneously and continuously by optical detection means which is installed facing the disk for nucleic acid analysis.

Abstract: Provided is a method of producing a printed circuit board. The method comprises preparing a base having a plurality of through via conductors having through holes, filling the through holes of the through via conductors with resin paste by printing in such a manner that, of the through holes, those which are arranged at smaller intervals are filled with a smaller amount of resin paste than those which are arranged at larger intervals, curing the resin paste, and removing an unnecessary portion of resin resulting from the curing of the resin paste. A mask used for carrying out the filling by printing is also provided.

Abstract: In order to provide a magnetic resonance signal receiving apparatus with simplified arrangement of a coil loop selecting means, an active disabling circuit by the diode and a passive disabling circuit by the inductor connected in parallel to the capacitor through a pair of inverted heading parallel diodes are provided to a plurality of unit coils forming a phased array, the active disabling circuit will be controlled by the bias driver unit.

Abstract: An RF coil which is a coil array using three pieces or more of coils, including three pieces of coils 1, 2 and 3 or more arrayed proximately to each other, coil intermediary connecting capacitors 4, 5 and 6 respectively interposed in the coils, parallel connection lines 10 through 13 for connecting the coil intermediary connecting capacitors 4, 5 and 6 in parallel and neutralizing capacitors 14 through 17 interposed in the parallel connection lines 10 through 13 with an object of dispensing with mutual interference among the coils without overlapping the adjacent coils, in which by transmitted voltage transmitted from both ends of the coil intermediary connecting capacitor (4) of the one coil (1)to both ends of the coil intermediary connecting capacitors (5, 6)of the other coils (2, 3)via the parallel connection lines (10 through 13)and the neutralizing capacitors (14 through 17), induced voltage generated by the one coil (1) across the both ends of the coil intermediary connecting capacitors (5, 6)of the oth

Abstract: An optical information recording medium comprising a light transmitting substrate, a light absorptive layer containing at least one light absorbing substance formed on the substrate and a light reflective layer made of a metal film formed on the light absorptive layer, wherein an optical parameter represented by &rgr;=nabsdabs/&lgr; wherein nabs is the real part of the complex refractive index of the light absorptive layer, dabs is the average thickness of the light absorptive layer and &lgr; is the wavelength of a reading laser beam, is 0.6<&rgr;<1.6.

Abstract: In order to acquire MR data with respect to a wider area of the subject to be examined at a higher SNR by positioning RF coil for once, an MRI apparatus is provided, which comprises a stage for mounting a subject to be examined, a magnetostatic coil for generating a magnetostatic field, partial each having narrower sensitivity area than a uniform static field and juxtaposed along with the direction of body axis of the subject, a stage movement controller unit for moving the stage so as to include the sensitivity area of one of partial coils in the uniform magnetostatic field to receive NMR signals and for thereafter repeating moving the stage again so as to include another one of partial coils into the uniform magnetostatic field, a coil switching controller unit selectively connecting one among partial coils of which the sensitivity area is included in the uniform magnetostatic field, a computer for generating an MR image based on the MR data, and for synthesize each of MR image by corresponding to the locat

Abstract: An optical information recording medium comprising a light transmitting substrate, a light absorptive layer containing at least one light absorbing substance formed on the substrate and a light reflective layer made of a metal film formed on the light absorptive layer, wherein an optical parameter represented by .rho.=n.sub.abs d.sub.abs /.lambda. wherein n.sub.abs is the real part of the complex refractive index of the light absorptive layer, d.sub.abs is the average thickness of the light absorptive layer and .lambda. is the wavelength of a reading laser beam, is 0.6<.rho.<1.6.

Abstract: An optical information medium comprises an optically transparent substrate and a protective layer formed on the substrate for protecting a record portion so that information which is optically readable by means of a laser beam can be recorded. A hydrophilic film is formed at a side opposite to a side through which reproduction light of the optically transparent substrate is passed. The film has a hydrophilic surface on which an aqueous printing ink is fixable. Printing is possible on the hydrophilic surface by use of an ink jet printer. A method for printing on the hydrophilic surface is also described.

Abstract: An X-ray apparatus acquires an X-ray image of an object by radiating X-rays to the object and includes an X-ray radiator for radiating X-rays to an object. An imager acquires an X-ray image of the object and radiation dose controller controls the radiation dose so as to acquire an X-ray image having a predetermined X-ray relative noise level on the basis of an image level of a predetermined area in the X-ray image.

Abstract: An optical information medium comprises an optically transparent substrate and a protective layer formed on the substrate for protecting a record portion so that information which is optically readable by means of a laser beam can be recorded. A hydrophilic film is formed at a side opposite to a side through which reproduction light of the optically transparent substrate is passed. The film has a hydrophilic surface on which an aqueous printing ink is fixable. Printing is possible on the hydrophilic surface by use of an ink jet printer. A method for printing on the hydrophilic surface is also described.

Abstract: An X-ray radiograph apparatus comprising an X-ray source which irradiates a subject body with X rays of a low level radiation dose during the fluoroscopic operation and irradiates the same with X rays of a high level radiation dose during the radiographic operation; an X-ray image intensifier for converting an X-ray image, which has irradiated by the X-ray source and has penetrated through the subject body, into an optical image; a distributor for distributing an output optical image from the X-ray intensifier to a plurality of optical paths; a fluoroscopic imaging element arranged on one of plural output optical paths of the distributor; a radiographic imaging element arranged on an output optical path of the distributor other than the output optical path on which the fluoroscopic imaging element is arranged, the radiographic imaging element having a higher resolution than the fluoroscopic imaging element and having a lower imaging speed than the fluoroscopic imaging element; and an image display for display

Abstract: A RF coil for MRI is presented which is capable of optimizing current distributions and expanding a magnetic field uniform region using a saddle coil having wide elements also presented is an MRI apparatus using the RF coil. A RF coil for MRI, which includes main paths 1a and 1b provided in parallel to each other and connecting paths 1e, 1f, 1g and 1h for connecting the main paths to each other and is constructed in a saddle form, is configured so as to have slits 2e, 2f, 2g and 2h defined therein in the vicinity of regions where the connecting paths are respectively connected to the main paths.

Abstract: An optical information medium providing a protective layer above an optically transparent substrate to protect a recording part, and can record information which is optically readable by means of laser beam. An aqueous printing ink-fixable, hydrophilic resin film is formed on the protective layer. Given letters and patterns can be printed easily and satisfactorily. Such letters and patterns are printable by means of, for example, an ink jet printer.

Abstract: An apparatus detects a ground fault of an exciting circuit and a field circuit of an AC exciting variable speed rotating machine. The exciting circuit outputs an excited voltage controlled a frequency and/or an amplitude, and the field circuit of the AC exciting variable speed rotating machine is applied a field current by the excited voltage of the exciting circuit. A ground resistance is connected between a neutral point and a ground. The apparatus detects a current flowing from a ground to a neutral point through the ground resistance, and detects the ground fault based upon the detected current. Therefore, the apparatus can detect a ground fault of a field circuit and an exciting circuit of an AC exciting rotating machine during the AC exciting rotating machine operation with certainty.

Abstract: An optical information medium providing a protective layer above an optically transparent substrate to protect a recording part, and can record information which is optically readable by means of laser beam. An aqueous printing ink-fixable, hydrophilic resin film is formed on the protective layer. Given letters and patterns can be printed easily and satisfactorily. Such letters and patterns are printable by means of, for example, an ink jet printer.

Abstract: An optical information medium comprises an optically transparent substrate and a protective layer formed on the substrate for protecting a record portion so that information which is optically readable by means of a laser beam can be recorded. A hydrophilic film is formed at a side opposite to a side through which reproduction light of the optically transparent substrate is passed. The film has a hydrophilic surface on which an aqueous printing ink is fixable. Printing is possible on the hydrophilic surface by use of an ink jet printer. A method for printing on the hydrophilic surface is also described.

Abstract: An optical information recording substrate and method of producing the substrate, the substrate having a legible matter formed in a groove area thereof or a pit array area thereof, wherein the legible matter includes a plurality of grooves or pit arrays being partially different in the breadth or depth thereof. The grooves or arrays may be partially dislocated in the radial direction of the optical information recording substrate from a predetermined track. The visually legible matter may include a plurality of laser generated pit arrays wherein remaining portions of the legible matter have a plurality of continuous grooves formed therein. The legible matter may also include a plurality of continuous grooves wherein remaining portions of the legible matter includes a plurality of laser generated pit arrays formed therein.

Abstract: An optical information medium providing a protective layer above an optically transparent substrate to protect a recording part, and can record information which is optically readable by means of laser beam. An aqueous printing ink-fixable, hydrophilic resin film is formed on the protective layer. Given letters and patterns can be printed easily and satisfactorily. Such letters and patterns are printable by means of, for example, an ink jet printer.

Abstract: An optical information recording medium comprising a light transmitting substrate, a light absorptive layer containing at least one light absorbing substance formed on the substrate and a light reflective layer made of a metal film formed on the light absorptive layer, wherein an optical parameter represented by .rho.=n.sub.abs d.sub.abs /.lambda. wherein n.sub.abs is the real part of the complex refractive index of the light absorptive layer, d.sub.abs is the average thickness of the light absorptive layer and .lambda. is the wavelength of a reading laser beam, is 0.6<.rho.<1.6.