Masato Murata

Title: Masato Murata: Innovator in Brushless Motor Technology

Introduction

Masato Murata is a prominent inventor based in Toshima-ku, Japan. He has made significant contributions to the field of brushless motor technology, holding 2 patents that showcase his innovative approach to motor control.

Latest Patents

Murata's latest patents include a "Drive unit for brushless fan motor and control method thereof." This invention allows for easy control of the motor's speed without the need for PWM control. The design features a power control circuit that regulates the rotor's speed by managing the on/off operation of a power feed semiconductor switch. The system compares the actual rotational speed of the rotor with a target speed, adjusting the turn-off time of the switch to achieve the desired speed quickly and smoothly.

Another notable patent is the "Drive unit for brushless motor." This invention ensures that the rotor can reliably rotate in a normal or positive direction during the motor's startup phase. The power control circuit is designed to set the turn-on time of the power feed semiconductor switch to a level that allows the rotor to escape the negative torque region during startup. The turn-off time is also calibrated to enable the rotor to accelerate after the turn-on time has elapsed. This process is repeated as necessary to achieve the desired rotation direction.

Career Highlights

Masato Murata is currently employed at Sanyo Denki Co., Ltd., where he continues to develop innovative solutions in motor technology. His work has significantly impacted the efficiency and performance of brushless motors.

Collaborations

Murata collaborates with Naruhiko Kudo, contributing to advancements in their field through shared expertise and innovative ideas.

Conclusion

Masato Murata's contributions to brushless motor technology exemplify his commitment to innovation and efficiency. His patents reflect a deep understanding of motor control, making him a valuable figure in the industry.