Patent application number | Description | Published |
20090036597 | CARBODIIMIDE COMPOUND AND USE THEREOF - An object of the present invention is to provide a carbodiimide type compound having high dispersibility and dispersion stability of pigments, fine resin particles, and pigment-resin composite fine particles particularly in a silicone dispersion medium; a pigment dispersion composition and a pigment-resin composite fine particles-containing dispersion composition preferably usable in a wide range of fields such as inks for solvent ink jet, liquid developers, and the like by using the compound; and a liquid developer using such a pigment dispersion composition and/or pigment-resin composite fine particles-containing dispersion composition. The present invention provides a carbodiimide type compound obtained by introducing a polysiloxane chain by reaction of a functional group of a polysiloxane chain-containing compound having the functional group reactive with a carbodiimide group with a carbodiimide group of a carbodiimide compound having a carbodiimide equivalent weight of 100 to 50000. | 02-05-2009 |
20090243525 | INVERTER CONTROL METHOD - Two current threshold values are adopted, which are larger than the upper limit of current of an operating region. When a rotating speed is smaller than a speed threshold value, the current threshold value is adopted as a criterion to judge whether an input current to an inverter is abnormal, and when the rotating speed Rot is larger than that, the other current threshold value is adopted as the criterion. | 10-01-2009 |
20100136474 | PROCESS FOR PRODUCTION OF LIQUID DEVELOPER, AND LIQUID DEVELOPER PRODUCED BY THE PROCESS - Disclosed is a process for production of a liquid developer for use in electrophotograph or electrostatic recording by coacervation method. The process can produce a liquid developer in which a coloring agent (e.g., a pigment) is included completely within a resin particle by distillation of a solvent while retaining the state where the coloring agent are finely dispersed and the resulting colored resin particle is small in particle size and has an excellent dispersion stability, and which has excellent optical properties. The process comprises preparing a mixture containing a pigment, a resin having a fixability, a solvent (A) which can dissolve the resin therein, a hydrocarbon solvent (B) which cannot dissolve the resin therein and has an SP value lower than that of the solvent (A) and at least one dispersing agent which is soluble in both of the solvents (A) and (B), and distilling away the solvent (A) from the mixture to cause the resin dissolved in the mixture to precipitate, whereby a colored resin particle having the pigment included therein is dispersed in the solvent (B). | 06-03-2010 |
20100136475 | PROCESS FOR PRODUCTION OF LIQUID DEVELOPER, AND LIQUID DEVELOPER PRODUCED BY THE PROCESS - Disclosed is a process for production of a liquid developer for use in electrophotograph or electrostatic recording by coacervation method. The process can produce a liquid developer in which a coloring agent (e.g., a pigment) is included completely within a resin particle by distillation of a solvent while retaining the state where the coloring agent are finely dispersed and the resulting colored resin particle is small in particle size and has an excellent dispersion stability, and which has excellent optical properties. The process comprises preparing a mixture containing a pigment, a resin having a fixability, a solvent (A) which can dissolve the resin therein, a hydrocarbon solvent (B) which cannot dissolve the resin therein and has an SP value lower than that of the solvent (A), at least one dispersing agent (A) which is soluble in both of the solvents (A) and (B), and at least one dispersing agent (B) which is soluble in the solvent (A) but insoluble or poorly soluble in the solvent (B), and distilling away the solvent (A) from the mixture to cause the resin dissolved in the mixture to precipitate, whereby a colored resin particle having the pigment included therein is dispersed in the solvent (B). | 06-03-2010 |
20100232983 | Inverter Compressor Operating Method and Compressor Driving Device - A boot capacitor that functions as an operating power supply for a high-arm-side transistor provided in an inverter has to be charged prior to normal operation of a motor. This operation of charging the boot capacitor is performed at a carrier frequency that is lower than a carrier frequency for the normal operation. | 09-16-2010 |
20100323291 | METHOD FOR PRODUCING LIQUID DEVELOPER - The present invention provides a method for producing a liquid developer for electrophotography or electrostatic recording obtained by a coacervation method, which sufficiently maintains the charging property and has good dispersion stability of colored resin particles, as well as a liquid developer obtained by the method. | 12-23-2010 |
20110025242 | MOTOR CONTROL METHOD, MOTOR CONTROL DEVICE, FAN DEVICE, COMPRESSOR, AND PUMP DEVICE - Triggered by a position detection sensor detecting that a rotor is positioned at any one of K predetermined electrical angles, for example, 60°, 180°, and 300°, a voltage vector to be given to a motor is updated. When, for example, the rotation frequency is equal to or higher than a specified value, the predetermined electrical angles is changed into M, for example, into one angle of 60°. | 02-03-2011 |
Patent application number | Description | Published |
20100211223 | CURRENT DETECTING DEVICE, AIR CONDITIONING APPARATUS, CORRECTION CONSTANT CALCULATING SYSTEM AND CORRECTION CONSTANT CALCULATING METHOD - A current detecting device includes a current leveling unit, a first wire and a current detecting unit. The current leveling unit is configured to level a drive current that is passed through a motor drive unit to drive a motor. The first wire is configured and arranged to carry flow of a motor current that has been passed through the motor and the drive current that has been leveled by the current leveling unit. The current detecting unit is configured to detect a sum of the motor current flowing on the first wire and the drive current that has been leveled flowing on the first wire. | 08-19-2010 |
20100275627 | MOTOR CURRENT DETECTING DEVICE AND AIR CONDITIONING APPARATUS - A motor current detecting device includes a first wire, an instantaneous current detecting unit, an average electric current detecting unit, and a calculation unit. The first wire is configured and arranged to carry flow of a motor current that has been passed through a motor and a drive current that has been passed through a motor drive unit to drive the motor. The instantaneous current detecting unit is configured and arranged to detect an instantaneous value for a sum of the motor current and the drive current flowing on the first wire. The average electric current detecting unit is configured and arranged to detect an average value of the sum of the motor current and the drive current flowing on the first wire. The calculation unit is configured to calculate the motor current on the basis of the instantaneous value and the average value. | 11-04-2010 |
20100281897 | MOTOR CURRENT CALCULATION DEVICE AND AIR CONDITIONING APPARATUS - A motor current calculation device includes a first wire, a current detecting unit, a decision unit, and a calculation unit. The first wire is configured and arranged to carry flow of a motor current that has been passed through a motor and a drive current that has been passed through a motor drive unit to drive the motor. The current detecting unit is configured and arranged to detect a sum of the motor current and the drive current flowing through the first wire. The decision unit is configured and arranged to determine a first detection result of the current detecting unit when the motor is not rotating as the drive current. The calculation unit is configured to calculate the motor current by subtracting the drive current determined by the decision unit from a second detection result of the current detecting unit when the motor is rotating. | 11-11-2010 |