Kiyoshi Yamamuro

Title: Kiyoshi Yamamuro: Innovator in Brushless Motor Technology

Introduction

Kiyoshi Yamamuro is a notable inventor based in Hitachi, Japan. He has made significant contributions to the field of motor technology, particularly in the development of brushless motors. With a total of 2 patents to his name, Yamamuro's innovations have the potential to enhance the efficiency and functionality of electric motors.

Latest Patents

Yamamuro's latest patents include a brushless motor that features a minimal number of parts, making it easy to assemble. This innovative design incorporates a molded, substantially annular plastic permanent magnet on the rotor, which is magnetized in axially opposite directions. This configuration creates multiple pairs of S and N poles, facilitating efficient operation. Additionally, the motor includes a frequency signal generating circuit pattern on the stator, which generates an electric signal indicative of rotor speed and position.

Another significant patent is for a low ripple-torque permanent magnet brushless motor. This design features three-phase driving coils and an electric commutator that controls the current to the driving coils. The rotor is equipped with permanent magnets that are alternately magnetized in N and S polarities, generating driving torque in response to the current flowing through the coils.

Career Highlights

Yamamuro is associated with Hitachi, Ltd., a leading company in technology and innovation. His work has contributed to advancements in electric motor design, showcasing his expertise in the field.

Collaborations

Yamamuro has collaborated with notable coworkers, including Nicolas Samman and Motoya Ito. Their combined efforts have likely fostered a creative environment that promotes innovation in motor technology.

Conclusion

Kiyoshi Yamamuro's contributions to brushless motor technology exemplify his innovative spirit and dedication to advancing engineering solutions. His patents reflect a commitment to improving efficiency and functionality in electric motors, marking him as a significant figure in the field.