Patent application number | Description | Published |
20110012460 | PERMANENT MAGNET FOR MOTOR, AND METHOD FOR MANUFACTURING THE PERMANENT MAGNET FOR MOTOR - The present invention relates to a permanent magnet for a motor, to be buried in a permanent magnet motor, including: a plurality of sheet magnets for lamination, and an insulating layer arranged between the plurality of sheet magnets for lamination. Since the invention has the above-mentioned constitution, the permanent magnets are free from the problems of temperature elevation and coercive force depression, therefore making it possible to provide a high-power small-sized motor. Furthermore, it is unnecessary to perform the conventional correcting processing after sintering, which can simplify the production steps, and therefore, it becomes possible to mold the permanent magnet with a high degree of dimension accuracy. | 01-20-2011 |
20110012700 | PERMANENT MAGNET AND METHOD FOR MANUFACTURING THE SAME - The present invention relates to a permanent magnet obtained by sintering a green sheet which is produced by mixing a magnet raw material with a resin binder and molding the resulting mixture, and a method for producing the same. Since the present invention has such a constitution, the contraction due to sintering becomes uniform, whereby the deformations such as warpage and depressions do not occur after sintering. Further, it is unnecessary to perform the conventional correcting processing after sintering, which can simplify the production steps, because the pressure unevenness at the time of pressing disappears. Therefore, it becomes possible to mold the permanent magnet with a high degree of dimension accuracy. Furthermore, even when the permanent magnet is reduced in film thickness, the magnetic characteristics are not deteriorated by the processing-deteriorated layer on the surface. | 01-20-2011 |
20110018664 | PERMANENT MAGNET AND METHOD FOR MANUFACTURING THE SAME - The present invention relates to a permanent magnet obtained by wet-mixing a Dy compound or a Tb compound with a magnet raw material to coat a surface of the magnet raw material with the Dy compound or the Tb compound, and sintering a green sheet obtained by mixing the resulting magnet raw material with a resin binder and molding the resulting mixture. Since the present invention has the above-mentioned constitution, it becomes possible to sufficiently improve coercive force by Dy or Tb while decreasing the amount of Dy or Tb used. Further, it can be prevented that Dy or Tb is solid-solutionized in magnet particles to decrease residual magnetization. | 01-27-2011 |
20110037548 | PERMANENT MAGNET AND PROCESS FOR PRODUCING PERMANENT MAGNET - The present invention relates to a permanent magnet manufactured by steps of: wet-pulverizing a high-melting metal element-containing organic compound or a precursor of a high-melting ceramic in a solvent together with a magnet raw material to pulverize the magnet raw material into fine particles having a grain size of 3 μm or less and to coat a surface of the pulverized magnet raw material with the high-melting metal element-containing organic compound or the precursor of the high-melting ceramic; adding a resin binder to the magnet raw material coated with the high-melting metal element-containing organic compound or the precursor of the high-melting ceramic; producing a slurry by kneading the magnet raw material and the resin binder; molding the slurry into a sheet form to prepare a green sheet; and sintering the green sheet. | 02-17-2011 |
20110043311 | PERMANENT MAGNET AND PROCESS FOR PRODUCING PERMANENT MAGNET - The present invention relates to a permanent magnet manufactured by steps of: pulverizing a magnet raw material; mixing the pulverized magnet raw material with a rust preventive oil in which a Dy compound or a Tb compound is dissolved, thereby preparing a slurry; compression molding the slurry to form a molded body; and sintering the molded body. | 02-24-2011 |
20110267160 | PERMANENT MAGNET AND PROCESS FOR PRODUCING PERMANENT MAGNET - The present invention relates to a permanent magnet manufactured by steps of: pulverizing a magnet raw material into fine particles having a grain size of 3 μm or less; mixing the pulverized magnet raw material with a rust preventive oil in which a high-melting metal element-containing organic compound or a precursor of a high-melting ceramic is dissolved, thereby preparing a slurry; compression molding the slurry to form a molded body; and sintering the molded body. | 11-03-2011 |
Patent application number | Description | Published |
20090040088 | A/d Converter and A/D Conversion Method - In an A/D converter provided with an A/D converter circuit | 02-12-2009 |
20100097136 | A/D CONVERTER AND A/D CONVERSION METHOD - In an A/D converter provided with an A/D converter circuit | 04-22-2010 |
20100117879 | A/D CONVERTER AND A/D CONVERSION METHOD - An A/D converter which converts an analog input signal into a digital output signal by performing time-divisional parallel processings on the analog input signal using first and second pipeline type unit A/D converters ( | 05-13-2010 |
20110084755 | ANALOG SWITCH - An analog switch ( | 04-14-2011 |
20110254125 | SEMICONDUCTOR INTEGRATED CIRCUIT - A semiconductor integrated circuit according to the present invention is equipped with a plurality of analog macros having comb capacitors ( | 10-20-2011 |
20110291873 | DIFFERENTIAL AMPLIFIER AND PIPELINE A/D CONVERTER USING THE SAME - In a differential amplifier, input terminals to which a differential input is given are connected to gates of input transistors, respectively. One ends of capacitive devices are connected to sources of the input transistors, respectively. A switching section switches connection between the other ends of the capacitive devices and the input terminals according to a control clock at each phase. | 12-01-2011 |
20140062750 | REFERENCE VOLTAGE STABILIZER CIRCUIT AND INTEGRATED CIRCUIT INCLUDING THE SAME - A reference voltage is maintained stable against disturbance noise and self-noise of an internal circuit. A reference voltage stabilizer circuit for stabilizing the reference voltage to be supplied through at least one of first or second signal lines includes a preceding-stage circuit including a capacitive path connected between the first and second signal lines; and a subsequent-stage circuit including a resistive path connected between the first and second signal lines, and a resistive circuit inserted, between the capacitive path and the resistive path, into one of the first or second signal lines through which the reference voltage is supplied. | 03-06-2014 |
Patent application number | Description | Published |
20090040520 | SPECTROSCOPY DEVICE, SPECTROSCOPY APPARATUS AND SPECTROSCOPY METHOD - A spectroscopy device that separates input light into a plurality of wavelength ranges. A metal body has a hole or aperture which is open on the upper side. The hole or aperture is formed in a polygonal shape having at least a pair of opposite faces not parallel to each other in horizontal cross-section. Inner side faces of the hole or aperture are finished as mirror like reflection surfaces. Polarized input light inputted from the opening to the hole or aperture is reflected by the reflection surfaces and a standing wave is generated inside of the hole or aperture by self interference, whereby the input light is separated into a plurality of wavelength ranges. | 02-12-2009 |
20110267487 | SOLID-STATE IMAGE PICKUP DEVICE, IMAGING DEVICE, AND DISPERSING ELEMENT - A solid-state image pickup device capable of taking more light into light receiving regions is provided. The solid-state image pickup device of the present invention includes: a photoelectric conversion unit having a plurality of light receiving regions that are two-dimensionally arrayed, the photoelectric conversion unit for photoelectrically converting light incident on each of the light receiving regions, and outputting an electric signal according to the intensity of the incident light; a lens unit comprising a plurality of converging lenses provided on an upper layer of the photoelectric conversion unit, each of the converging lens being provided corresponding to a set of continuous first to third light receiving regions; and a dispersing element provided between the photoelectric conversion unit and the lens unit, the dispersing element being formed of a medium whose refractive index varies periodically, and diffracting beams of a first wavelength band and of a third wavelength band, having been transmitted through the converging lens, and directing the beams onto the first light receiving region and the third light receiving region, and transmitting, without diffracting, a beam of a second wavelength band, having been transmitted through the converging lens, and directing the beam onto the second light receiving region. | 11-03-2011 |
20120140217 | OPTICAL MICROSCOPE AND OPTICAL INSTRUMENTATION - The invention provides an optical microscope that prevents an increase in the complexity of the light source system and is equipped with optics readily capable of adequate operation even when the modulation frequency is increased in order to reduce the impact of the intensity noise of the laser, etc. This optical microscope | 06-07-2012 |
20140104608 | OPTICAL MICROSCOPE AND OPTICAL INSTRUMENTATION - An optical microscope that can prevent an increase in the complexity of the light source system is equipped with optics readily capable of adequate operation even when the modulation frequency is increased to reduce the impact of the intensity noise of the laser. The optical microscope irradiates a sample with a first train of optical pulses having a first optical frequency, which is generated by a first light source, and a second train of optical pulses having a second optical frequency, which is temporally synchronized with the first train of optical pulses and is generated by a second light source, and detects light scattered from the sample. A first repetition frequency of the first train of optical pulses is an integral sub-multiple of a second repetition frequency of the second train of optical pulses. | 04-17-2014 |