Takahashi, Nagano
Akihiko Takahashi, Nagano JP
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20110029271 | METHOD OF INSPECTING MOTOR CONDITION AND DEVICE FOR INSPECTING MOTOR CHARACTERISTICS - A method of inspecting motor condition, which allows inspection of a condition of a motor installed in an apparatus without removing the motor from the apparatus, is provided. A device for inspecting motor characteristics includes: a measuring section for measuring a frequency value and an amplitude value of a waveform of a counter electromotive force generated when a mover of the motor is moved by an external force; and a computing section for computing a counter electromotive force constant on the basis of the frequency value and the amplitude value. An armature winding of the motor and the inspecting device are electrically connected with a power supply line disconnected from the motor. An external force is applied to the mover of the motor. A condition of the motor is determined on the basis of the computed result. | 02-03-2011 |
20120068653 | METHOD AND SYSTEM FOR DETERMINING DETERIORATION OF PERMANENT MAGNETS OF ELECTRIC APPARATUS - A method and a system for determining deterioration of permanent magnets of an electric apparatus to be inspected that facilitate determination without the need to remove the electric apparatus from a facility where it is installed. If the electric apparatus to be inspected is a three-phase linear motor, a current detector is used to acquire currents. A three-phase/two-phase conversion section converts the acquired currents into an α-axis current command and a β-axis current command. A locus of a current vector is computed based on the α-axis current command and the β-axis current command. A comparing and determining section compares the computed locus with a standard upper limit value stored in a storage means. If the number of times that the locus of the current vector exceeds the standard upper limit value exceeds a predetermined value, it is determined that the permanent magnets have been deteriorated. | 03-22-2012 |
20120197564 | MOTOR CONDITION INSPECTION METHOD AND MOTOR CHARACTERISTIC INSPECTING DEVICE - A motor characteristic inspecting device is capable of inspecting the condition of a motor installed in an apparatus without removing the motor from the apparatus. The motor characteristic inspecting device includes: a vector variation computing section configured to compute a voltage vector variation amount when a mover of a three-phase motor is moved by an external force; a speed variation detecting section configured to detect a speed variation amount; a constant computing section configured to compute a counter electromotive force constant; and a result display section. Armature windings of the motor installed in the apparatus and the motor characteristic inspecting device are electrically connected with power supply lines disconnected from the motor. An external force is applied to the mover of the motor. The condition of the motor is determined based on the computed result displayed on the result display section of the motor characteristic inspecting device. | 08-02-2012 |
Eiko Takahashi, Nagano JP
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20090284088 | OPTIMIZED STATOR MOUNTING METHOD TO PRINTED CIRCUIT BOARD - A stator assembly detachably mounted with a fan housing. The stator assembly includes a stator including one or more first mounting feet and one or more second mounting feet disposed apart from each other. Additionally, the stator assembly includes a printed circuit board (PCB) having one or more first openings and a fan housing having a base member fixed to a bearing liner. The base member includes one or more second openings disposed about the bearing liner. The stator is coupled to the PCB into a stator-PCB assembly with each of the one or more first mounting feet being locked with one of the one or more first openings. The stator-PCB assembly is center-aligned with respect to the bearing liner and coupled to the fan housing with each of the one or more second mounting feet locked with one of the one or more second openings. | 11-19-2009 |
Fuminori Takahashi, Nagano JP
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20090051775 | SIGNAL PROCESSING DEVICE - A signal processing device includes a system of system of circuit processing in essence while avoiding large sized device under restoring fluctuated signals such as deterioration and the like. The signal processing unit includes a processing unit that restores one of a signal before fluctuation, a signal which should have been intrinsically obtained, and signal data which is approximated from these signals from an initial signal which has fluctuated like deterioration. A fluctuated data region storing fluctuated data and a restored data region storing signal data (restored data) restored every restoring process are installed. The processing unit repeats the following processes in order to produce data formed in the restored data region at the completion of processing as original signal data. The processing unit transfers energy of the fluctuated data from the fluctuated data region to the restored data region using fluctuation-factor information data, which is a fluctuation factor, and produces restored data; and substitutes residual data in the fluctuated data region remained through the data transfer for the fluctuated data. | 02-26-2009 |
20100013940 | IMAGE PROCESSING APPARATUS - A circuit processing a method is provided that is more practical for restoring an image as well as preventing a device from becoming large. The image processing device includes an image processing unit for processing an image. The processing unit produces restored data approaching to an initial image data before fluctuating by repeating the following processes: generating comparison data Io′ from arbitrary signal data Io by using data G of fluctuation factor information that triggers image fluctuation; comparing the comparison data Io′ with original image data Img′ as an object to be processed thereafter; producing a restored data Io+n by allocating a difference data δ to the arbitrary image data Io while using the data G of fluctuation factor information; and substituting the restored data Io+n for the arbitrary signal data Io thereafter. Further, various methods using the above basic processing can also be applied. | 01-21-2010 |
20100021078 | SIGNAL PROCESSING APPARATUS - A signal processing device, which is more practical for restoring signals, includes a signal processing unit for processing a signal. The processing unit produces restored data that approaches the original signal data before fluctuating (before blurring) by repeating the following processing: generating comparison data Io′ from arbitrary signal data Io by using information data G regarding fluctuation factors that triggers signal fluctuation; comparing the comparison data Io′ with original signal data Img′ as an object to be processed thereafter; producing restored data Io+n by allocating difference data δ to the arbitrary signal data Io while using the information data G regarding fluctuation factors; and substituting the restored data Io+n for the arbitrary signal data Io thereafter. | 01-28-2010 |
20100214433 | IMAGE PROCESSING DEVICE - The present invention is an image processing device that certainly restores a non-linearly corrected image. A processing unit 4 restores a non-linearly corrected original image or an original image without being non-linearly corrected from a non-linearly corrected initial image data which has been fluctuated like deterioration and was non-linearly corrected by a predetermined way. The processing unit 4 repeats processing using any of fluctuation-factor information data which becomes a factor of fluctuating an image, the initial image data which is non-linearly corrected and the initial image data without being non-linearly corrected which is not non-linearly corrected and obtained by performing inversely non-linear correction against the non-linearly corrected initial data. The processing unit gradually generates any one of the non-linearly corrected initial data and comparison data which is approximated to the initial image without being non-linearly corrected and gradually approximates the energy of the non-linearly corrected initial data to zero. The processing unit performs basic processing of forming the original image data or the non-linearly corrected original image data. | 08-26-2010 |
20100220203 | IMAGE PROCESSING DEVICE - An image processing device that produces a restored image that gives people natural feeling when a shot image with longer exposure time on the way to image blurring due to hand jiggling or an end portion is restored. The image processing device comprises an image processing unit that produces a restored image approximated to an original image from an object image to be processed, which is fluctuated against the original image due to movement of an image shooting device during exposure. The image processing unit produces the restored image while making the restored image correspond to a position having the longest exposure time for an object image to be processed. | 09-02-2010 |
Hikaru Takahashi, Nagano JP
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20160052070 | CHAMFER MACHINING METHOD - A beveling method for beveling the edge of the opening of a cross hole ( | 02-25-2016 |
Ikuomi Takahashi, Nagano JP
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20110237372 | TENSIONER - A tensioner has a cylindrical member having multiple locking teeth, one or multiple locking pieces having locking teeth to be engaged with the locking teeth, and a locking piece receiving part to receive the aforementioned locking pieces. A shaft member is disposed inside the cylindrical member, and either the cylindrical member or the shaft member constitutes a thrust member that can be driven forward and backward by a biasing force. A ratchet mechanism allows the thrust member to move forward by the locking pieces riding over the locking teeth of the cylindrical member as they move in a reduced-diameter direction and constrains retraction of the thrust member by the locking pieces engaging with the locking teeth of the cylindrical member as they move in an increased-diameter direction. The locking teeth are all thread-like teeth having a lead angle. | 09-29-2011 |
20110251001 | TENSIONER - A tensioner having a simplified structure, using engaging teeth having increased strength and reduced backlash, constructed from a reduced number of parts, reduced in cost, and having increased design freedom. A tensioner comprises: a tubular member ( | 10-13-2011 |
Kimiyo Takahashi, Nagano JP
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20130005187 | CONNECTOR - A connector includes a first connector and a second connector, wherein the first connector includes first contacts made of a conductive material, and a first movable part made of an insulating material, wherein the first contacts have respective first contact portions of a convex shape, and the first movable part is connected to the first contacts to be movable together with the first contact portions, wherein the second connector includes second contacts made of a conductive material, and a second movable part made of an insulating material, wherein the second contacts have respective second contact portions coming in contact with the first contact portions, and the second movable part is connected to the second contacts to be movable together with the second contact portions, and wherein the first contact portions and the second contact portions are configured to come in contact with each other, thereby establishing electrical coupling. | 01-03-2013 |
Kouta Takahashi, Nagano JP
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20100022075 | SEMICONDUCTOR DEVICE AND METHOD OF MANUFACTURING THE SEMICONDUCTOR DEVICE - An active region in a semiconductor device is made up of a parallel p-n layer including a first p-semiconductor layer and a first n-semiconductor with the widths and total amounts of impurities being equal to each other to provide a structure in which charges are balanced. A section parallel to stripes in the parallel p-n layer in an inactive region is made up of a second parallel p-n layer including a second p-semiconductor layer, with its width larger than that of the first p-semiconductor layer, and a second n-semiconductor layer with its width smaller than that of the first n-semiconductor layer. The total amount of impurities in the second p-semiconductor layer is made larger than that in the second n-semiconductor layer to provide a structure in which charges are made unbalanced. | 01-28-2010 |
20100323499 | METHOD FOR MANUFACTURING SEMICONDUCTOR DEVICE - A method for manufacturing a semiconductor device is disclosed in which, after semiconductor function regions and patterns of interlayer insulating films including required contact holes are formed on one main surface side of a semiconductor substrate, an aluminum film or an aluminum alloy film which is thick is formed all over the main surface side of the semiconductor substrate and brought into conductive contact with the surface of the semiconductor substrate including bottom surfaces of the contact holes so as to form a required electrode film. Formation of the aluminum film or the aluminum alloy film is divided into a plurality of steps so that the thickness of the aluminum film or the aluminum alloy film is formed gradually, and between every two of the plurality of steps of forming the aluminum film or the aluminum alloy film, there is provided a step of performing isotropic etching to flatten irregularities in a surface of the aluminum film or the aluminum alloy film formed in the previous step. The method for manufacturing a semiconductor device prevents the formation of voids in the surface of an Al electrode film on the surface side of a semiconductor substrate. | 12-23-2010 |
Yoshimasa Takahashi, Nagano JP
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20150130476 | DIRECT-CURRENT REGULATOR, DC-DC CONVERTER, AND METHOD FOR MONITORING ANOMALY OF DIRECT-CURRENT REGULATOR - A direct-current regulator includes: a fuse, a high-side switch, and a low-side switch connected in series between a high potential side input voltage terminal and a low potential side input voltage terminal; and a control unit configured to control the high-side switch and the low-side switch, wherein the fuse is formed on a silicon substrate on which the high-side switch is formed, and the fuse includes: two electrodes separately formed on the silicon substrate; a plurality of band-shaped polysilicon films formed between the two electrodes; and a linking part of a polysilicon film provided so as to connect the neighboring band-shaped polysilicon films at intermediate portions. | 05-14-2015 |
Yuuki Takahashi, Nagano JP
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20100007230 | Motor with sheet-like coil - A spindle motor includes: a stator yoke having a circular cylinder shape; a rotor magnet disposed opposite to the stator yoke with an air gap therebetween; a sheet-like coil disposed at a surface of the stator yoke opposing the rotor magnet; and a bearing structure, wherein the sheet-like coil includes a plurality of individual coils having a spiral-shape and arrayed in a circumferential direction, and a pattern made of a same material as the individual coils and disposed between two adjacent individual coils. | 01-14-2010 |