Patent application number | Description | Published |
20090033435 | SWITCHING CIRCUIT - Disclosed is a switch circuit capable of reducing distortion caused by harmonics and preventing an increase in insertion loss even if the number of ports increases. The switching circuit includes one common output port, M first switches having one set of ends connected in common to a first node (M≧2 where M is a constant), N second switches having one set of ends connected in common to the common output port (N≧1 where N is a constant), a third switch having one end connected to the common output port and the other end connected to the first node, M first input ports respectively connected to the other set of ends of the first switches, and N second input ports respectively connected to the other set of ends of the second switches. One selected among the first input ports and the second input ports is connected to the common output port, and if one of the first input ports is selected, the third switch is closed. | 02-05-2009 |
20090160264 | HIGH FREQUENCY SWITCHING CIRCUIT - There is provided a high frequency switching circuit that can reduce generation of a harmonic signal without using a boost circuit. A high frequency switching circuit according to an aspect of the invention may include: a first switch having one end connected to a first port and the other end connected to a ground; a second switch having one end connected to a second port and the other end connected to the first port by a phase rotation element; and a control circuit controlling to turn off the first switch and turn on the second switch when a high frequency signal input to the first port is output through the second port, wherein the control circuit controls the off-state of the first switch so as to increase harmonics of the high frequency signal generated from the first switch, and the phase rotation element rotates the phase of the harmonics generated in the first switch within a frequency band of the harmonics, and cancels the phase-rotated harmonics generated from the first switch and harmonics generated from the second switch in opposite phases to each other. | 06-25-2009 |
20120154017 | HIGH FREQUENCY SWITCH - There is provided a high frequency switch capable of suppressing deterioration in distortion characteristics. The high frequency switch includes: a common port outputting a transmission signal to an antenna; a plurality of transmission ports each having the transmission signal input thereto; and a plurality of switching units each connected between the plurality of transmission ports and the common port to conduct or block the transmission signal from each of the transmission ports to the common port, wherein each of the switching units has one or more metal oxide semiconductor field effect transistors (MOSFETs) formed on a silicon substrate, and a capacitor connected between a body terminal of a MOSFET connected to the common port among the MOSFETs and a terminal of the MOSFET connected to the common port. | 06-21-2012 |
20130106495 | SWITCH | 05-02-2013 |
20130141161 | POWER AMPLIFIER - There is provided a power amplifier capable of compensating for a distortion without deteriorating a gain of input voltage. The power amplifier includes an input terminal to which an input voltage is applied; a class AB power amplification circuit connected to the input terminal; and an element connected between the input terminal and the class AB power amplification circuit, turned on when the input voltage is equal to or greater than a predetermined value, and varying impedance thereof according to the input voltage. | 06-06-2013 |
20130147551 | AMPLIFYING APPARATUS - There is provided an amplifying apparatus which can prevent characteristic deterioration while reducing costs. The amplifying apparatus includes a first amplifier connected between an input terminal to which a high-frequency signal is input and an output terminal through which the high-frequency signal is output, including a bipolar transistor, and amplifying the high-frequency signal input from the input terminal; a second amplifier including a bipolar transistor, amplifying the high-frequency signal input from the input terminal, and having a lower maximum output power than that of the first amplifier; and a switching unit connected between the second amplifier and the output terminal, and selectively outputting the high-frequency signal amplified by the second amplifier through the output terminal. | 06-13-2013 |
20130187698 | HIGH FREQUENCY SWITCHING CIRCUIT AND METHOD OF CONTROLLING THE SAME - There is provided a high frequency switching circuit reducing power consumption at the time of signal reception and signal transmission. The high frequency switching circuit includes a pulse generation unit generating a clock selecting pulse signal having a predetermined active period; a clock selection unit selecting a reference clock signal when the clock selecting pulse signal is in an active state and selecting a low-speed clock signal having a frequency lower than that of the reference clock signal when the clock selecting pulse signal is not in an active state; a voltage down unit accumulating negative charges in a capacitor to generate predetermined negative voltage; and a switching unit including at least one switch holding a turned-off state by being applied with the predetermined negative voltage. | 07-25-2013 |
Patent application number | Description | Published |
20150028862 | STATOR STRUCTURE OF VR TYPE RESOLVER AND VR TYPE RESOLVER - A stator structure and a VR type resolver, in which the winding of the resolver can be prevented from corroding without increasing the production cost, are provided. The stator structure has stator protruding portions and coils wound around the stator protruding portions, the coils consisting of exciting coils, sine phase detection coils, and cosine phase detection coils, and at least the coils wound at the outermost side are formed by wires in which conductive portions are made of aluminum. | 01-29-2015 |
20150042322 | STRUCTURE FOR MOUNTING RESOLVER - A structure for mounting a resolver in a housing, in which it is not necessary to use various different plates for forming the stator and accuracy of concentricity of the rotor and the stator is prevented from decreasing by a simple structure, are provided. The structure for mounting a resolver in a housing has a rotor and a stator arranged the outside of the rotor, in which the stator is mounted at an opening of the housing by clamps, projections are formed on an outer peripheral surface of the stator, protruding portions are formed on the clamps, and the stator is pressed to the housing by the clamps in a state in which the protruding portions are engaged with the concavities of the stator. | 02-12-2015 |
20150061652 | RESOLVER - A resolver has a stator includes a circular yoke, multiple salient poles radially projecting inward from the yoke, and winding wires wound around the salient poles via an insulator; a rotor disposed inside the stator; a wire outgoing portion arranged with plural terminal pins, the terminal pins being connected to end portions of the winding wires; and a terminal pin cover attached to the wire outgoing portion and covering the terminal pins. The terminal pin cover includes multiple spaces that individually contain one of the terminal pins. A filler is filled in each space, whereby the end portion of the winding wire electrically connected to the terminal pin is sealed in the filler. | 03-05-2015 |
Patent application number | Description | Published |
20130221261 | WEAR-RESISTANT COBALT-BASED ALLOY AND ENGINE VALVE COATED WITH SAME - A surface hardening material being excellent in abrasion resistance and having impact resistance is provided. Provided are: a wear-resistant cobalt-based alloy containing 20.0 to 30.0 mass % of a sum of Mo and/or W, 0.8 to 2.2 mass % of B, 5.0 to 18.0 mass % of Cr, 5.0 mass % or less of a sum of Fe, Ni, Mn, Cu, Si and C, 1.0 mass % or less of Si, and 0.3 mass % or less of C, and the remainder comprising 55.0 to 70.0 mass % of Co and unavoidable impurities; and an engine valve coated with the same. | 08-29-2013 |
20150152529 | Ni-Fe-Cr ALLOY AND ENGINE VALVE WELDED WITH THE SAME ALLOY - A hard-facing alloy having impact resistance, wear resistance and hot corrosion resistance and containing Fe which is a bountiful resource and inexpensive is provided. Provided are: a Ni—Fe—Cr alloy containing 0 to 20.0 mass % of Mo, 8.0 to 40.0 mass % of W, 20.0 to 40.0 mass % of a total amount of Mo and W, 20.0 to 50.0 mass % of Fe, 12.0 to 36.0 mass % of Cr and 1.0 to 2.5 mass % of B, and the remainder being Ni and unavoidable impurities; and an engine valve welded with the same alloy. The above Ni—Fe—Cr alloy can further contain 15 mass % or less of a total amount of elements selected from Co, Mn, Cu, Si and C, in such cases, 15.0 mass % or less of Co, 5.0 mass % or less of each of Mn and Cu, 2.0 mass % or less of Si and 0.5 mass % or less of C are preferred. | 06-04-2015 |
20150284828 | Ni-Cr-Co-BASED ALLOY HAVING HIGH-TEMPERATURE CORROSION RESISTANCE, AND POPPET VALVE SURFACE-MODIFIED WITH THE SAME - There is provided a surface-coating material having excellent cracking resistance and peeling resistance, and having excellent high-temperature corrosion resistance properties; and a poppet valve coated with the surface-coating material. The Ni—Cr—Co-based alloy comprises 40.0 to 50.0 mass % of Cr, 10.0 to 20.0 mass % of Co, 0.5 to 5.0 mass % of Nb, 0.01 to 5.0 mass % of Fe and 0.1 to 3.0 mass % of Si, with the remainder being 26.0 to 40.0 mass % of Ni and unavoidable impurities. The Ni—Cr—Co-based alloy may additionally comprise one or more elements selected from Mo, W, Mn, Ti, Al, B and C in a total amount of 5.0 mass % or less. The content of each of Ti and Al is 3.0 mass % or less and the content of each of B and C is 1.0 mass % or less. In the poppet valve, at least a face portion is coated with the Ni—Cr—Co-based alloy. | 10-08-2015 |
Patent application number | Description | Published |
20110020166 | IRON-BASE HEAT- AND CORROSION-RESISTANT BRAZING MATERIAL - The object of the present invention is to provide at a low cost iron-base heat- and corrosion-resistant brazing material which make it possible to braze parts made of a base metal selected from among various stainless steels, particularly ferritic stainless steels, at a practical temperature (of 1120° C. or lower) and are excellent in the wetting property against the base metal and which can attain excellent resistance to corrosion by sulfuric acid or nitric acid and high strength without coarsening the structure of the base metal. The iron-base heat- and corrosion-resistant brazing material is characterized by comprising 30 to 75 wt % of Fe, 35 wt % or less of Ni and 5 to 20 wt % of Cr in a total amount of Ni and Cr of 15 to 50 wt %, and 7 wt % or less of Si and 4 to 10 wt % of P in a total amount of Si and P of 9 to 13 wt %. The iron-base heat- and corrosion-resistant brazing material further comprising 0.5 to 5 wt % of Mo and/or 0.3 to 5 wt % of Cu in a total amount of Mo and Cu of 1 to 7 wt % is more preferable. | 01-27-2011 |
20130224069 | NICKEL-BASED HYDROCHLORIC ACID CORROSION RESISTANT ALLOY FOR BRAZING - Provided is a hydrochloric acid corrosion resistant alloy For brazing that is provided with corrosion resistance against hydrochloric acid, and when brazing various types of stainless steel, can be used for brazing at practical temperatures (1150° C. or less), and has good joint strength and brazeability to the substrate. The hydrochloric acid corrosion resistant alloy of the present invention contains, in mass percent, 6.0-18.0% Mo, 10.0-25.0% Cr, 0.5-5.0% Si, and 4.5-8.0% P, with the remainder being 40.0-73.0% Ni and unavoidable impurities, and the total of Si and P being 6.5-10.5%. In this case, the alloy may contain 12.0% or less of Cu, 20.0% or less of Co, 15.0% or less of Fe, 8.0% or less of W, 5.0% or less of Mn, and 0.5% or less of the total of C, B, Al, Ti, and Nb. | 08-29-2013 |
20130306019 | HIGH-TOUGHNESS COBALT-BASED ALLOY AND ENGINE VALVE COATED WITH SAME - A surface hardening material being excellent in impact resistance and having abrasion resistance is provided. Provided are: a high-toughness cobalt-based alloy containing 25.0 to 40.0 mass % of Cr, 0.5 to 12.0 mass % of a sum of W and/or Mo, 0.8 to 5.5 mass % of Si, and 0.5 to 2.5 mass % of B, 8.0 mass % or less of each of Fe, Ni, Mn, and Cu, and 0.3 mass % or less of C, the sum amount of Fe, Ni, Mn, and C being 10.0 mass % or less, and the remainder comprising 48.0 to 68.0 mass % of Co and unavoidable impurities; and an engine valve coated with the same. | 11-21-2013 |
Patent application number | Description | Published |
20100225043 | IMAGE RECORDING APPARATUS - Disclosed is a recording apparatus including a recording portion which records an image on a recording medium, a feeding mechanism which feeds the medium along a feed path extending from a recording-medium supply position to a recording-medium ejection position via a recording point where the recording portion performs the recording of the image, a reading portion which reads the image recorded on the medium fed along the feed path, and a position controller which controls a position of at least one of the medium and the reading portion such that the medium as located at a reading point for the reading portion in the feed path is selectively placed in one of a first position allowing the reading portion to read the image recorded on the recording medium and a second position at which the recording medium is away from the reading portion farther than when at the first position. | 09-09-2010 |
20110242181 | LIQUID EJECTION APPARATUS - A recording apparatus includes a recording unit recording an image, an endless belt which is stretched between rollers such that the inner circumferential surface thereof contacts the rollers and the outer circumferential surface thereof opposes the recording unit, a mark arranged on the profile of the belt, and a mark detection unit which detects that the mark moving in accordance with the travel of the belt is positioned at a predetermined position. | 10-06-2011 |
20130027480 | LIQUID CARTRIDGE, IMAGE RECORDING DEVICE, AND SUBSTRATE - A liquid cartridge includes a liquid reservoir, a liquid flow path that selectively places the reservoir in fluid communication with an exterior of the cartridge, a sensor that outputs a signal relative to a position of an object in the liquid flow path, a storage that stores data therein, and a plurality of terminals. The plurality of terminals includes a sensor terminal connected to the sensor, a power terminal connected to at least one of the sensor and the storage, and that receives power, and a data terminal connected to the storage. A distance between a first portion of the power terminal and at least a portion of the data terminal is greater than a distance between a second portion of the power terminal and at least a portion of the sensor terminal. | 01-31-2013 |
20130083097 | LIQUID EJECTION APPARATUS AND LIQUID CARTRIDGES - A liquid ejection apparatus includes a liquid ejection head that ejects liquid, a hollow needle that communicates with the liquid ejection head, a moving mechanism that moves the hollow needle or a liquid cartridge such that the hollow needle penetrates a sealing member of the liquid cartridge, a reader that reads a data stored in a memory, and a controller that controls a speed of the hollow needle relative to the sealing member based on the data read by the reader. | 04-04-2013 |
20140347428 | LIQUID CARTRIDGE, IMAGE RECORDING DEVICE, AND SUBSTRATE - A liquid cartridge includes a liquid reservoir, a liquid flow path that selectively places the reservoir in fluid communication with an exterior of the cartridge, a sensor that outputs a signal relative to a position of an object in the liquid flow path, a storage that stores data therein, and a plurality of terminals. The plurality of terminals includes a sensor terminal connected to the sensor, a power terminal connected to at least one of the sensor and the storage, and that receives power, and a data terminal connected to the storage. A distance between a first portion of the power terminal and at least a portion of the data terminal is greater than a distance between a second portion of the power terminal and at least a portion of the sensor terminal. | 11-27-2014 |