| Patent application number | Description | Published |
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| 20090251082 | CONTROLLER FOR AC ROTARY MACHINE - A controller for an AC rotary machine is proposed, by which a stable rotation angular-frequency estimate value can be obtained even in an extremely low speed region of the AC rotary machine, and consequently stable control can be performed. A controller for an AC rotary machine has an angular-frequency estimate output means | 10-08-2009 |
| 20090256518 | VECTOR CONTROL DEVICE OF INDUCTION MOTOR, VECTOR CONTROL METHOD OF INDUCTION MOTOR, AND DRIVE CONTROL DEVICE OF INDUCTION MOTOR - The vector control device includes: secondary magnetic flux command computing means ( | 10-15-2009 |
| 20100060212 | Control Apparatus for Electric Railcar - A control apparatus for an electric railcar includes an inverter that exchanges power with an AC rotating machine, a filter capacitor connected in parallel to a DC side of the inverter, a filter reactor provided between the filter capacitor and an overhead line, an overhead line voltage measuring instrument that measures a voltage value of the overhead line, a voltage increase detection unit that senses an amount of voltage increase occurring when, with an overhead line voltage being supplied, the overhead line voltage goes beyond a reference voltage value and rises at a rate equal to or higher than that by a predetermined time constant. A correction torque command value calculation unit calculates a correction torque command value that is corrected so that a torque command value to be received from an external unit becomes smaller for a predetermined time elapsing after the voltage increase detection unit has sensed, during regeneration operation of the inverter, an amount of voltage increase more than a predetermined range. A vector control unit controls the inverter so that the AC rotating machine develops torque coincident with the correction torque command value. | 03-11-2010 |
| 20100194322 | ELECTRIC VEHICLE CONTROLLER - An electric vehicle controller includes a speed sensorless vector controller for estimating the rotating speed of an AC motor from an output voltage command and an output current from a VVVF inverter, and controlling the VVVF inverter based on the estimate. An overhead wire current detector detects the current flowing through an overhead wire. A wrong action sensor senses an abnormality in the speed sensorless vector controller from the sign of the current flowing through the overhead wire and detected by the overhead wire current detector when the VVVF inverter is in operation. A gate stop circuit stops the VVVF inverter when the wrong action sensor senses an abnormality. | 08-05-2010 |
| Patent application number | Description | Published |
|---|
| 20090054352 | BENZENE DERIVATIVE OR SALT THEREOF - Problem: To provide compounds which have an anticoagulation effect based on their ability to inhibit the activated blood coagulation factor X and are useful as coagulation inhibitors or agents for prevention or treatment for diseases caused by thrombi or emboli. | 02-26-2009 |
| 20090186909 | Oxadiazolidinedione Compound - [Problem] A compound which can be used as a pharmaceutical, particularly a insulin secretion promoter or a agent for preventing/treating disease in which GPR40 is concerned such as diabetes or the like, is provided. | 07-23-2009 |
| 20100152165 | CARBOXYLIC ACID DERIVATIVES - [Problem] To provide a pharmaceutical, particularly a compound which can be used as an insulin secretion promoter or a preventive or therapeutic agent for diabetes mellitus and the like diseases in which GPR40 is concerned. | 06-17-2010 |
| 20100267775 | OXADIAZOLIDINEDIONE COMPOUND - A pharmaceutical agent having GPR40 receptor agonistic action, particularly a compound which is useful as an insulin secretagogue or an agent for preventing and/or treating diabetes mellitus. The present inventors have examined a compound having GPR40 receptor agonistic action, confirmed that an oxadiazolidinedione compound which has a substituent such as a benzyl group, etc. linked with a substituent such as a phenyl group, etc. through a linker at the 2-position of an oxadiazolidinedione ring, or a pharmaceutically acceptable salt thereof has an excellent GPR40 agonistic activity, and thus completed the invention. The oxadiazolidinedione compound has excellent insulin secretagogue action and anti-hyperglycemic action, and therefore can be used as an insulin secretagogue or an agent for preventing and/or treating diabetes mellitus. | 10-21-2010 |
