Kakebayashi

Toru Kakebayashi, Tokyo JP

Patent application number	Description	Published
20100141188	MOTOR DRIVE - [Task] A high-speed driving is possible, a utilization of a power supply having a low voltage is possible, and a regeneration is easy to be carried out.	06-10-2010
20110187219	ROTOR STRUCTURE OF PERMANENT MAGNET TYPE ROTARY MACHINE - In a rotor structure of a permanent magnet type rotary machine comprising a cylindrical permanent magnet	08-04-2011
20110316463	CURRENT SOURCE INVERTER DEVICE - Disclosed is a current source inverter device which controls the power factor in an arbitrarily configurable manner without a magnetic pole position detector. The device is provided with a current source inverter; a motor supplied with alternating current power from the current source inverter; and a control means which detects the terminal voltage of the motor, calculates the motor's internal induced voltage and the motor current that flows in the motor based on the detected terminal voltage, and controls the current source inverter. The control means calculates the phase difference (θc) between the terminal voltage and the motor current, the phase difference (θx) between the motor current and the internal induced voltage, and the phase difference (θv) between the terminal voltage and the internal induced voltage. An adjustment angle (θα), which is the error in the phase difference between the motor current and the internal induced voltage when the set value of the phase difference (θx) is θy, is obtained from the conditional equation θα=θv−θy−θc.	12-29-2011
20120109549	ELECTRICAL POWER CONTROL DEVICE AND ELECTRICAL POWER CALCULATION METHOD IN ELECTRICAL POWER CONTROL DEVICE - A motor drive device including a battery	05-03-2012
20120112671	POWER-CONSUMPTION CALCULATING METHOD OF MOTOR DRIVING DEVICE, AND CONTROL METHOD OF MOTOR DRIVING DEVICE USING THE POWER-CONSUMPTION CALCULATING METHOD - Accurate power consumption is calculated without raising cost, or making the device bigger. Power consumption (P) upon driving a motor is calculated from an input voltage (Vdc), a switching duty factor of a switching device (Sw	05-10-2012

Toru Kakebayashi, Nerima-Ku JP

Patent application number	Description	Published
20130278189	INVERTER CONTROL SYSTEM - A LPF extracts DC component of a current detection value of an inverter input current. A subtracting section	10-24-2013

Yasunori Kakebayashi, Takasago-Shi JP

Patent application number	Description	Published
20120079868	Calibration method for multi-component force measuring spindle unit used in tire testing machine - A transformation matrix used for finding actual loads acting on a tire can be reliably calibrated. Using the calibrated transformation matrix, the translation and moment loads exerted on the tire can be calculated with a high degree of accuracy in a multi-component force measuring spindle unit including two multi-component force measuring sensors on locations spaced-apart from each other along the axis direction of a spindle shaft. The calibration method includes a step of measuring loads exerted on the spindle shaft, a calculation step using a measured load vector including the loads obtained in the measurement step and the transformation matrix applied to the measured load vector, to find an actual load vector including actual loads on the tire. Before the calculation step, a calibration step determines the measured load vector under a plurality of linearly independent test conditions and calibrates the transformation matrix based on the determined measured load vector.	04-05-2012