Kora
Koki Kora, Tokyo JP
Patent application number | Description | Published |
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20100018448 | SHIP BUOYANCY CONTROL SYSTEM | 01-28-2010 |
Masayuki Kora, Tokyo JP
Patent application number | Description | Published |
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20100213915 | SEMICONDUCTOR SWITCHING DEVICE - A semiconductor switching device includes a power control part, which includes a voltage dropping chopper circuit having a first switching element and a first diode, a voltage boosting chopper circuit having a second switching element and a second diode, and an inductance. And the inductance is connected such that an unusual current caused by the arm short circuit is forced to pass through the inductance. | 08-26-2010 |
Masayuki Kora, Chiyoda-Ku JP
Patent application number | Description | Published |
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20100214710 | SEMICONDUCTOR DEVICE MEASURING VOLTAGE APPLIED TO SEMICONDUCTOR SWITCH ELEMENT - A semiconductor device includes a semiconductor switch element having a first conductive electrode and a second conductive electrode, and a voltage measurement circuit for measuring voltage between the first conductive electrode and the second conductive electrode of the semiconductor switch element. The voltage measurement circuit includes a constant voltage element connected in parallel with the semiconductor switch element for limiting voltage applied in a conducting direction of the semiconductor switch element to a prescribed value, a control switch connected in parallel with the constant voltage element, and a switch control unit turning on the control switch when the semiconductor switch element is off, and turning off the control switch when the semiconductor switch element is on. | 08-26-2010 |
Masayuki Kora, Fukuoka-Shi JP
Patent application number | Description | Published |
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20130120030 | SEMICONDUCTOR DEVICE MEASURING VOLTAGE APPLIED TO SEMICONDUCTOR SWITCH ELEMENT - A semiconductor device includes a semiconductor switch element including a first conduction electrode and a second conduction electrode, and a voltage measurement circuit for measuring voltage across the first conduction electrode and second conduction electrode of the semiconductor switch element. The voltage measurement circuit includes a diode element connected parallel to the semiconductor switch element to restrict the voltage applied in the conducting direction of the semiconductor switch element to a predetermined value, a control switch connected in series with the diode element, and a switch control unit setting the control switch at an OFF state when the semiconductor switch element is at an OFF state, and setting the control switch at an ON state when the semiconductor switch element is at an ON state. | 05-16-2013 |
Roland Kora, Marly Le Roi FR
Patent application number | Description | Published |
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20100141459 | METHOD AND INSTALLATION FOR REAL-TIME INSPECTION OF THE QUALITY OF WATER IN A DELIVERY NETWORK - Method for inspecting, in real time, the quality of water of a drinking water delivery network comprising, on the one hand, on connections for consumers, consumption meters ( | 06-10-2010 |