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Patent applications and USPTO patent grants for Igarashi; Masayoshi.The latest application filed is for "pwm motor drive device".
Patent | Date |
---|---|
PWM motor drive device Grant 9,871,475 - Tabata , et al. January 16, 2 | 2018-01-16 |
Pwm Motor Drive Device App 20170170756 - TABATA; KATSUYUKI ;   et al. | 2017-06-15 |
Servo control device, optical disk device, and data transfer method Grant 8,488,423 - Igarashi , et al. July 16, 2 | 2013-07-16 |
Servo Control Device, Optical Disk Device, And Data Transfer Method App 20130033974 - IGARASHI; Masayoshi ;   et al. | 2013-02-07 |
Sensorless Motor Drive Device App 20110310714 - IWANAGA; Taishi ;   et al. | 2011-12-22 |
Optical Disk Device App 20090296549 - Kobayashi; Kei ;   et al. | 2009-12-03 |
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