Tokuji Tatewaki, an accomplished inventor based in Kanagawa, Japan, has made significant strides in the field of motor control systems and power steering. With a total of 10 patents to his name, Tatewaki has demonstrated a relentless commitment to innovation and technological advancement.

Latest Patents

Among his latest inventions are two notable patents focused on motor control systems and power steering systems. The first patent describes a motor control system comprising an inverter and a control calculation unit. This unit features a voltage control calculation segment that computes a voltage command value required for motor operation based on deviations between the command and actual current. Additionally, it includes a compensation calculation unit that adjusts either the k-th component or the 1/k-th component, depending on the signal flow passing through the voltage control calculation unit.

The second patent outlines a motor control system that feedback-controls the inverter through its control calculation unit. This unit encompasses a voltage control section that calculates the necessary voltage command value and integrates a torque ripple compensation calculation unit, which adds a compensation value to manage torque ripple effectively. Furthermore, it includes a current limit calculation unit that adaptively controls the current command based on the actual angular velocity of the motor.

Career Highlights

Tokuji Tatewaki has had a distinguished career, working with prominent companies such as Nidec Corporation and Nidec Elesys Corporation. His contributions in these organizations have been pivotal in advancing technologies related to motor control and automotive systems.

Collaborations

Throughout his career, Tatewaki has collaborated with several talented professionals, including Shuji Endo and Tomonari Mori. These collaborations have allowed for the exchange of ideas and expertise, further enriching the innovation landscape in which he operates.

Conclusion

Tokuji Tatewaki stands out as a notable figure in the field of motor control systems and power steering technology. His portfolio of patents reflects his innovative spirit and dedication to advancing engineering solutions. As the automotive industry continues to evolve, Tatewaki's contributions will undoubtedly play a crucial role in shaping its future.

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