Company Filing History:
Years Active: 2019-2025
Title: Innovations of Jun Kitagawa in Electric Machine Control
Introduction
Jun Kitagawa is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of electric machine control, holding a total of six patents. His work focuses on enhancing the performance and efficiency of rotary electric machines and electric power steering systems.
Latest Patents
Among his latest patents, Kitagawa has developed a controller for rotary electric machines and an electric power steering apparatus. This controller is designed to appropriately increase or decrease the current of the d-axis in the negative direction, allowing for effective magnetic flux weakening. Notably, it operates independently of the rotational angle speed, eliminating the need for information on inductance and interlinkage flux of the rotor. Another innovative aspect of his controller is its ability to suppress the increase in switching frequency while reducing the estimation delay of the magnetic pole position. This is achieved by turning on and off the inverter's switching devices based on a comparison between the voltage command and the carrier wave.
Career Highlights
Kitagawa is currently employed at Mitsubishi Electric Corporation, where he continues to push the boundaries of technology in electric machine control. His work has been instrumental in advancing the capabilities of electric power systems.
Collaborations
Throughout his career, Kitagawa has collaborated with notable colleagues, including Tatsuya Mori and Kenta Kubo. These partnerships have fostered a creative environment that encourages innovation and the development of cutting-edge technologies.
Conclusion
Jun Kitagawa's contributions to the field of electric machine control exemplify the spirit of innovation. His patents reflect a deep understanding of electrical engineering and a commitment to improving technology for practical applications.