| Patent application number | Description | Published |
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| 20090140688 | Inverter Device - This invention provides an inverter device that can detect a step-out state of an AC motor by a simple process without depending on a rotation speed of the AC motor and also surely hold an abnormal state in the step-out state of the AC motor. The inverter device | 06-04-2009 |
| 20100079103 | ALTERNATING-CURRENT MOTOR CONTROL APPARATUS - An alternating-current motor control apparatus includes a stator frequency computing unit configured to compute a stator frequency of a motor magnetic flux; a torque error computing unit configured to compute a torque error by using the motor magnetic flux, an estimated current, and a motor current; and a speed estimator configured to estimate a speed of the alternating-current motor by using the stator frequency and the torque error. The speed estimator includes a proportional controller configured to reduce the torque error to zero, and an adaptive filter configured to eliminate a high-frequency component of the torque error. | 04-01-2010 |
| 20100085006 | CONTROL DEVICE FOR INDUCTION MOTOR - A control device includes a slip calculator that calculates a first slip frequency of an induction motor, a current detector that detects motor current that passes through the induction motor, an adder that calculates a primary frequency by adding a speed command and a second slip frequency that are given, a command voltage generation unit that generates first command voltage from the primary frequency, a voltage error observer unit that estimates a command voltage error from the first command voltage and the motor current, a slip correction unit that calculates a slip correction amount from the command voltage error, an adder that calculates the second slip frequency by adding the first slip frequency and the slip correction amount, and a voltage error correction unit that corrects the first command voltage using the command voltage error and outputs second command voltage. | 04-08-2010 |
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| 20080213164 | Method for producing hydrogen peroxide - The present invention provides a method for producing hydrogen peroxide, comprising the steps of: alternately reducing and oxidizing a working solution containing anthraquinone compounds as a reaction medium, wherein a mixture of alkyl-substituted anthraquinones and alkyl-substituted tetrahydroanthraquinones in a molar ratio of from 2:1 to 8:1 is used as the anthraquinone compounds in the working solution, in the reduction step all of the tetrahydroanthraquinones and some or all of the anthraquinones in the working solution are reduced; and keeping the content of alkyl-substituted anthrahydroquinones in the working solution after the reduction step and before the oxidation step higher than the content of alkyl-substituted tetrahydroanthrahydroquinones, wherein ethylanthraquinone and ethyltetrahydroanthraquinone are used as anthraquinone compounds in the working solution in a total proportion of both of from 10 to 45 mol % of all of the anthraquinone compounds in the working solution. | 09-04-2008 |
| 20090018013 | Method for producing regeneration catalyst for working solution usable for hydrogen peroxide production - The present invention is directed to a method for producing a regeneration catalyst for a working solution usable for producing hydrogen peroxide by an anthraquinone method, wherein active alumina is treated with a 20% by weight to saturated aqueous solution of a magnesium salt, treated with ammonia and then burned; and is also directed to a regeneration catalyst produced by the method. | 01-15-2009 |
| 20090169469 | Process for Hydrogen Peroxide Production Including Step for Regeneration of Working Solution - Provided is a provides a method for producing hydrogen peroxide, comprising a step of reducing and then oxidizing a working solution containing an organic solvent, anthraquinone having an alkyl substituent, and tetrahydroanthraquinone having an alkyl substituent to produce hydrogen peroxide; and a working solution regeneration step of removing an inert substance, generated as a sub product by the production of hydrogen peroxide, from the working solution and re-circulating the working solution deprived of the inert substance back into the step of producing hydrogen peroxide; wherein the working solution regeneration step includes i) a first distillation step of recovering the organic solvent by distillation performed at an atmospheric or a lower pressure; and ii) a second distillation step of, following the first distillation step, recovering the anthraquinone and the tetrahydroanthraquinone by distillation performed at a still lower pressure at 200° C. or higher for a residence time of 1 hour or longer. | 07-02-2009 |
| Patent application number | Description | Published |
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| 20080212137 | IMAGE FORMING DEVICE AND CONTROL METHOD THEREFOR - An image forming device includes a control unit configured to control by sorting common setting information valid among a plurality of devices and specific setting information valid for a specific device, an internal storage device configured to store setting data that includes a pair of setting data of identification information indicating a type of setting item and setting values, an external storage device controller configured to control to input and output the setting data with a detachable external storage device, and a selective-write device configured to select and write the setting data read from the external storage device based on the predetermined criteria. | 09-04-2008 |
| 20080259393 | IMAGE FORMING APPARATUS AND RECORDING MEDIUM - An image forming apparatus, including a plurality of applications each including a reception unit configured to receive print data, a determination unit configured to analyze the print data received by the reception unit to determine the data format thereof, and a print control unit configured to print an image of print data having a specific data format. The print data analyzed by the determination unit is sent to the print control unit when the data format is determined to be equivalent to the specific data format, or another reception unit when the data format is determined to be different from the specific data format. | 10-23-2008 |
| 20090190164 | Method and apparatus for forming image - In an image forming apparatus, a setting management unit acquires at least one of first setting data and second setting data. The first setting data is information that specifies data to be included in the identification image from among the identification data and the second setting data is information that specifies a position of the identification image. An output control unit outputs (e.g., prints) output data including the identification image that is created based on at least one of the first setting data and the second setting data that is acquired by the setting management unit. | 07-30-2009 |
| 20090296161 | Image forming apparatus, print processing method, and recording medium - An image forming apparatus to print an image on a recording medium based on print data. The image forming apparatus includes a storing unit to store the print data, an image processing unit to perform image processing on image data included in the print data; a printing operation specification unit to specify implementation of a printing operation; a marking unit to embed marking data in the image data, a marking printing operation specification unit to specify implementation of a marking printing operation, a printing operation implementation unit to implement the printing operation or the marking printing operation, a print data determination unit to determine whether or not the print data includes a setting for the marking printing operation, and a printing operation change unit to change a printing operation performed by the printing operation implementation unit. | 12-03-2009 |
| 20090310182 | METHOD AND APPARATUS FOR FORMING IMAGE AND RECORDING MEDIUM - One or more among a PC document receive filter, a FAX document receive filter, a read filter, and a readout filter create a report on each of the corresponding functions in a format common to the functions. A report filter changes a format of the created report as desired by the user. Therefore, when a setting for a report output process is changed, it is not necessary to change the setting with respect to each of the functions. Thus, it is possible to reduce development man-hours for the report output process. | 12-17-2009 |
| 20110007353 | IMAGE FORMING APPARATUS AND COMPUTER READABLE MEDIUM - A disclosed image forming apparatus includes a filter detection part that detects the filter when the external medium is connected; a filter identification information obtaining part that obtains filter identification information that identifies a filter set by a user from filter setting information when print data subject to printing is received, wherein the filter setting information regarding the filter is added to the print data; a first output part that outputs the print data to the filter via the input/output interface, in accordance with the filter identification information; an input part that inputs the print data on which a predetermined process has been carried out by the filter via the input/output interface; and a second output part that outputs the print data on which the predetermined process has been carried out by the filter to a page description language module. | 01-13-2011 |
