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| Number | Title | Issue Date |
| 8182253 | Multi-cylinder rotary compressor and refrigeration cycle equipment A rotary compressor, in which formulas Rc | 05/22/2012 |
| 8047013 | Outdoor unit of air conditioner To improve operation efficiency and safety at the time of trial run after installation and inspection, an outdoor unit includes a casing, a box provided within the casing, a main control board which is disposed along a perpendicular direction within the casing and a... | 11/01/2011 |
| 7997097 | Air conditioner An air conditioner according to an embodiment of the invention includes a refrigerator cycle unit having a variable speed compressor, an outdoor heat exchanger, a decompression device, an indoor heat exchanger, and an accumulator sequentially connected to one anothe... | 08/16/2011 |
| 7971016 | Microcomputer and electrical device having the same A ROM is divided into a first area and a second area. A program is stored in the second area and a jump command to the stored program is stored in a specific address of the second area. A call command for the specific address of the second area is stored in the firs... | 06/28/2011 |
| 7915781 | Winding method for stator and permanent magnet motor In a stator winding method for winding conductive wires 8 around teeth 4a to 4f of a stator core 4 having 3n teeth 4a to 4f and 3n slots 5a to 5f by use of a bobbin mac... | 03/29/2011 |
| 7848127 | Direct-current power supply apparatus with improved power factor First and second rectification circuits are connected to a commercial AC power supply by a reactor. A load is connected between the output terminal on the positive side of the first rectification circuit and the output terminal on the negative side of the second rec... | 12/07/2010 |
| D629092 | Heat exchanger for air conditioner | 12/14/2010 |
| D629091 | Heat exchanger for air conditioner | 12/14/2010 |
| 7823799 | Heat-pump-type water heater A heat source unit includes a compressor, a heat-source-side heat exchanger, an outdoor blower, and a controller for electric devices. A hydrothermal exchange unit accommodates water heat exchangers, water pipes, pumps and a controller, and is connected to the heat ... | 11/02/2010 |
| 7813152 | Power converter To provide a power converter, comprising: a pair of main circuit switching elements to which diodes are connected; a means for generating a first PWM basic signal for driving a main circuit switching element; and a reverse voltage application circuit to be operated,... | 10/12/2010 |
| 7797956 | Air conditioning apparatus A first motor-actuated expansion valve and a second motor-actuated expansion valve which are connected in parallel with each other in back-to-back connection are provided between an outdoor heat exchanger and an indoor heat exchanger. In the first motor-actuated exp... | 09/21/2010 |
| 7722343 | Sealed-type rotary compressor and refrigerating cycle device A sealed-type rotary compressor includes a rotary drive unit and a compression mechanism coupled via a rotary shaft pivotally supported by a main bearing and a sub-bearing, and roller bearings. In the compressor, there are provided an oil filler opening which is pro... | 05/25/2010 |
| D603948 | Heat exchanger for air conditioner | 11/10/2009 |
| 7607902 | Closed compressor and refrigerating cycle apparatus A closed compressor includes a closed case in which a plurality of compression mechanism sections are accommodated, the compression mechanism section having a cylinder including a cylinder chamber eccentrically rotatably accommodating a roller, the compression mecha... | 10/27/2009 |
| 7509816 | Air conditioner In an air conditioner provided with a capacity variable compressor unit including an inverter, the capacity of the capacity variable compressor unit is controlled in response to air-conditioning load data including temperature difference between a set temperature an... | 03/31/2009 |
| 7454919 | Hot-water supply apparatus Defrosting operation is possible by causing refrigerant discharged from a compressor to flow to an outdoor heat exchanger, and returning the refrigerant passed through the outdoor heat exchanger to the compressor through a water-heat exchanger, while operating a pum... | 11/25/2008 |
| 7422418 | Cross flow fan A cross flow fan of an indoor unit of, for example, an air conditioner includes a pair of disc-shaped end plates and a plurality of fan blades attached to the end plates in a ring-shaped arrangement. Each of the fan blades has a cross sectional area ratio of Sa/Sb i... | 09/09/2008 |
| 7290994 | Rotary hermetic compressor and refrigeration cycle system A vane of a first cylinder is compressed and urged by a spring member. A vane of a second cylinder is compressed and urged corresponding to a differential pressure between an intra-casing pressure guided into a vane chamber and a suction pressure or discharge pressu... | 11/06/2007 |
| 7281103 | Microcomputer with a security function for accessing a program storage memory A microcomputer comprises: a memory which stores a predetermined program; a CPU which reads the program stored in the memory based on a predetermined instruction to perform a predetermined calculation; and a read controller which controls reading of the program from... | 10/09/2007 |
| 7040880 | Horizontal rotary compressor A horizontal rotary compressor is configured such that an electrically powered compressor body is accommodated in a horizontally long hermetic receptacle in which a lubricating oil is accumulatively preserved, an interior of the hermetic receptacle is partitioned by... | 05/09/2006 |
| 7014438 | Fluid machinery A fluid machinery such as helical compressor includes a sliding mechanism comprising one side member composed, in combination, of a metallic base member having a sliding surface and a lubrication film formed on the sliding surface in a close contact thereto, and a c... | 03/21/2006 |
| 6914409 | Current detection method and control apparatus for electric motor A current detection method for an electric motor which detects phase currents of the electric motor driven by a power converter that provides ON/OFF control of bridge-connected switching elements, based on a pulse-width modulation excitation pattern, to convert a di... | 07/05/2005 |
| 6887058 | Fluid machinery A fluid machinery includes a helical mechanism connected to a driving mechanism, which is driven via a crank shaft. The helical mechanism includes a cylinder defining an inner space, a roller disposed inside the cylinder so as to be rotated in an eccentric manner, t... | 05/03/2005 |
| 6800973 | Stator winding connection arrangement for electric motor There is disclosed an electric motor, which contains a plurality of windings wound around a stator core and a plurality of winding terminal receiving portions for containing that include terminal portions of the plurality of windings in a peripheral direction of the... | 10/05/2004 |
| 6688125 | Refrigerating apparatus for use in vehicles, using an engine as power source The engine drives the generator, which generates electric power. The power drives the compressor. Thus driven, the compressor cools the interior of the refrigerating chamber. When the engine stops, the output of the generator stops is no longer available.... | 02/10/2004 |
| 6663369 | Fluid compressor A roller is provided in a hollow cylinder and is eccentric with the axis of the cylinder. A helical groove is made in the outer circumferential surface of the roller. A blade is fitted in the helical groove and can move into and from the helical groove. T... | 12/16/2003 |
| 6623253 | Compressor A compressor comprises a sealed case to which a suction pipe and a discharge pipe are connected, a compression mechanism unit provided within the sealed case, and a motor unit provided within the sealed case, the motor unit comprising a stator and a rotor... | 09/23/2003 |
| 6604371 | Oil amount detector, refrigeration apparatus and air conditioner An oil holding tank (40) is communicated to the case (10c) of the compressor (10). Part of the refrigerant discharged from the compressor (10) is introduced into the oil holding tank (40) so that the lubrication oil (L) is allowed to flow out from the oil... | 08/12/2003 |
| 6591628 | Outdoor unit of air conditioner An outdoor unit (1) of an air conditioner comprises a unit case having a rectangular shape in section and composed of side panels (4, 4, - -) in which a machine chamber (3) and a heat exchanger chamber (2) are defined so as to be vertically aligned in an ... | 07/15/2003 |
| 6589026 | Fluid machinery having a helical mechanism with through holes for ventilation A fluid machinery comprises a helical mechanism provided with a cylinder, a roller eccentrically disposed inside the cylinder and formed with a helical groove and a blade member fitted in the helical groove, an electric motor unit connected to the helical... | 07/08/2003 |
| 6552912 | Inverter apparatus for driving a compressor motor and a method for manufacturing the apparatus A rectifier circuit (3) and a switching circuit (6) are mounted on a board (30). The board (30) is contained in a case (10) along with one or more capacitors (4, 5). In particular, the capacitors (4, 5) are laid sideways in the case (10).... | 04/22/2003 |
| 6519833 | Method of magnetizing permanent magnet motor A method of magnetizing a permanent magnet motor involves inserting a spacer in between multi-layered windings (24Ua and 24Va) wound on a plurality of magnetic pole teeth when magnetizing an unmagnetized magnet (26), and removing the inserted spacer (28A)... | 02/18/2003 |
| 6470699 | Ceiling cassette type air conditioner A ceiling cassette type air conditioner includes a housing adapted for attachment to a room ceiling panel, a bell-mouth provided in the housing and having a bottom opening and an outer circumferential surface. An electrical part box is provided in the hou... | 10/29/2002 |
| 6296446 | Axial blower An axial blower includes a cylindrical hub, a driving device for rotating the cylindrical hub through a rotational shaft, a plurality of vanes arranged to an outer peripheral surface of the cylindrical hub in a circumferential direction thereof, and a plu... | 10/02/2001 |
| 6211635 | Brushless motor driving system for driving outdoor fan of air conditioner This invention relates to a brushless motor driving system for driving an outdoor fan of an air conditioner. The driving system comprises a Hall probe for detecting a position of a rotor of a brushless motor, an inverter circuit consisting of a plurality ... | 04/03/2001 |
