Hiyoshi Yamada

Title: Hiyoshi Yamada: Innovator in Synchronous Motor Technology

Introduction

Hiyoshi Yamada is a notable inventor based in Iwakura, Japan. He has made significant contributions to the field of synchronous motor technology, holding a total of 6 patents. His innovative designs have advanced the efficiency and functionality of motor systems.

Latest Patents

Yamada's latest patents include a magnet rotor for synchronous motors. This design features a yoke made of magnetic material, with a cylindrical permanent magnet surrounding it. The magnet has alternating N and S poles located in the circumferential direction. An adhesive fills the gap between the yoke and the magnet, which hardens at a temperature that the motor encounters during operation, ensuring a strong bond. Another notable patent is a rotor that comprises a rotor body and a ring-shaped rare earth metal-iron type magnet. This design incorporates a low thermal-expansion material inserted between the rotor body and the magnet, enhancing performance.

Career Highlights

Throughout his career, Yamada has worked with prominent companies, including Daido Tokushuko Kabushiki Kaisha and Daido Tokushuko K.K. His experience in these organizations has contributed to his expertise in motor technology and innovation.

Collaborations

Yamada has collaborated with esteemed colleagues such as Yasuaki Kasai and Norio Yoshikawa. Their joint efforts have furthered advancements in the field of synchronous motors.

Conclusion

Hiyoshi Yamada's contributions to synchronous motor technology through his patents and collaborations highlight his role as an influential inventor. His work continues to impact the industry positively.