Inventor
UETAKE AKIHITO
JP18 patents
⚠️ This page may combine multiple inventors who share the name “UETAKE AKIHITO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SEIKO EPSON CORP
15 patentsUS6483270B1Nov 19, 2002
Method and device for controlling position sensorless motor
SEIKO EPSON CORP119 citations98
US5827148AOct 27, 1998
Variable speed drive unit for electric vehicle and variable speed driving method
SEIKO EPSON CORP136 citations98
US6163148ADec 19, 2000
Sensor, drive force auxiliary device using the sensor, and torque sensor zero point adjusting mechanism of the drive force auxiliary device
SEIKO EPSON CORP129 citations97
US6154422ANov 28, 2000
Power-generating device, charging method and clocking device
SEIKO EPSON CORP78 citations96
US6107761AAug 22, 2000
Drive for electric vehicle and control method of the same
SEIKO EPSON CORP74 citations96
US6047460AApr 11, 2000
Method of producing a permanent magnet rotor
SEIKO EPSON CORP84 citations96
US6034458AMar 7, 2000
DC brushless motor having an interior permanent magnet rotor with optimal magnet thickness/air gap relationship
SEIKO EPSON CORP53 citations96
US5844344ADec 1, 1998
DC brushless motor having auxiliary salient poles
SEIKO EPSON CORP54 citations96
US5780983AJul 14, 1998
Brushless DC motor drive apparatus
SEIKO EPSON CORP67 citations96
US5703449ADec 30, 1997
Controller for brushless DC motor without position sensor
SEIKO EPSON CORP62 citations96
US5931245AAug 3, 1999
Battery control system for electric vehicle
SEIKO EPSON CORP90 citations94
US6952625B2Oct 4, 2005
Recycling job supporting system, recycling center equipment, information management center equipment, equipment program, and recycling job supporting method
SEIKO EPSON CORP22 citations87
US7909466B2Mar 22, 2011
Project equipped with ultrasonic speaker, and method for displaying sound reproduction range in projector
SEIKO EPSON CORP8 citations84
US7382688B2Jun 3, 2008
Ultrasonic transducer, ultrasonic speaker, and method of controlling the driving of ultrasonic transducer
SEIKO EPSON CORP18 citations84
US5703768ADec 30, 1997
Motor control apparatus
SEIKO EPSON CORP11 citations73