Company Filing History:
Years Active: 2019-2022
Title: Masafumi Hotta: Innovator in Motor Control Technology
Introduction
Masafumi Hotta is a distinguished inventor based in Isesaki, Japan. He has made significant contributions to the field of motor control technology, holding a total of 4 patents. His innovative work focuses on enhancing the performance and reliability of synchronous motors.
Latest Patents
One of Masafumi Hotta's latest patents is a motor control device designed to determine the rotor position of a synchronous motor without the use of sensors. This device prevents erroneous rotor position readings, enabling stable control of the synchronous motor in both normal-control and flux-weakening-control regions. The motor control device includes a first rotor position determining unit that assesses the rotor position based on the current electrical angle and a first current phase derived from the current peak value and the difference between the induced voltage electrical angle and the current electrical angle. Additionally, a second rotor position determining unit is incorporated, which also determines the rotor position based on the current electrical angle and a second current phase obtained from flux linkage and the current peak value. A selecting unit is included to choose between the first and second rotor position determining units based on the current peak value and the respective current phases.
Career Highlights
Masafumi Hotta is currently employed at Sanden Automotive Components Corporation, where he continues to develop innovative solutions in motor control technology. His work has been instrumental in advancing the capabilities of synchronous motors, making them more efficient and reliable.
Collaborations
Some of his notable coworkers include Daisuke Hirono and Takeo Tsukamoto, who have collaborated with him on various projects within the company.
Conclusion
Masafumi Hotta's contributions to motor control technology exemplify his commitment to innovation and excellence in engineering. His patents reflect a deep understanding of synchronous motor dynamics and a dedication to improving their performance.
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