Mitsuhiro Mishima

Title: Innovator of Synchronous Motor Technologies: Mitsuhiro Mishima

Introduction: Mitsuhiro Mishima is a distinguished inventor located in Tokai, Japan, known for his significant contributions to the field of synchronous motor technologies. With four patents to his name, Mishima's innovations focus on enhancing motor performance and control in complex electrical systems.

Latest Patents: Among his latest patents is a groundbreaking invention titled "Synchronous Motor and Control Method of Synchronous Motor." This patent describes a synchronous motor equipped with a three-phase inverter and position sensors. It features a specialized unit that converts analog output from an input current detection circuit to a digital input current value. Additionally, a digital feedback speed control unit adjusts the amplitudes and frequencies of the AC voltages to ensure the calculated motor speed closely aligns with the external speed command value. This motor also includes a communication transmission unit for sending input current values and motor speeds externally.

Another noteworthy patent by Mishima is the "Apparatus and Method for Driving Synchronous Motor." This invention outlines a driving apparatus that incorporates position sensors, a current polarity detection circuit, and an inverter for operational efficiency. The motor speed calculation unit computes the rotational speed, while the speed control and phase control units adjust the voltage components for optimal performance.

Career Highlights: Mitsuhiro Mishima has made substantial impacts during his career at several prestigious organizations, including Hitachi, Ltd. and Hitachi Information & Control Solutions, Ltd. His expertise in electrical engineering and motor technologies has positioned him as an influential figure in developing advanced drive systems.

Collaborations: Throughout his career, Mishima has collaborated with notable coworkers such as Daisuke Maeda and Kenji Sakurai. These partnerships have further propelled innovation within synchronous motor technologies, contributing to significant advancements in the field.

Conclusion: Mitsuhiro Mishima's achievements and patents have undeniably shaped the landscape of synchronous motor technologies. His work continues to inspire other inventors and engineers worldwide, showcasing the importance of innovation in improving motor control systems and their applications in various sectors.