Hideki Amakusa

Title: Innovations of Hideki Amakusa

Introduction

Hideki Amakusa is a notable inventor based in Tokai, Japan. He has made significant contributions to the field of electrical engineering, particularly in the development of advanced motor control systems. With a total of 4 patents to his name, Amakusa continues to push the boundaries of innovation.

Latest Patents

One of his latest patents is a driving circuit for brushless motors. This innovative circuit includes a current sensor that detects alternating phase-current flowing in one of the phase coils. It also features a switching driver that supplies each phase-coil with prescribed alternating phase-current. Additionally, a reference value setting circuit provides a reference value that changes in synchronism with the prescribed phase-current, ensuring it is larger than the same. An abnormality determining circuit is included to identify any abnormalities if the current detected by the current sensor exceeds the reference value.

Another significant patent is a control system for electric power steering apparatus. This system is designed to detect calculation anomalies in a CPU, regardless of the magnitude of a modified control quantity. The CPU calculates a basic control quantity to drive a motor based on output from a torque sensor. It also calculates a modified control quantity corresponding to the steering conditions of the steering wheel. The CPU-calculation monitoring unit includes a first anomaly deciding means to determine the normality of the basic control quantity and a second anomaly deciding means for the modified control quantity. If any anomalies are detected, the motor is deactivated to ensure safety.

Career Highlights

Hideki Amakusa is currently employed at Denso Corporation, a leading global automotive supplier. His work at Denso has allowed him to apply his innovative ideas in practical applications, contributing to advancements in automotive technology.

Collaborations

Amakusa has collaborated with notable colleagues such as Atsushi Sato and Norihisa Ito. Their teamwork has fostered an environment of creativity and innovation, leading to the development of cutting-edge technologies.

Conclusion

Hideki Amakusa is a prominent inventor whose work in motor control systems has made a significant impact in the field of electrical engineering. His patents reflect his commitment to innovation and safety in technology.