Keiji Nishihara

Title: Keiji Nishihara: Innovator in Motor Driver Technology

Introduction

Keiji Nishihara is a notable inventor based in Kyoto, Japan. He has made significant contributions to the field of motor driver technology. His innovative approach has led to the development of a unique motor driver that enhances the efficiency and control of motor operations.

Latest Patents

Nishihara holds a patent for a motor driver that drives a motor composed of a rotor and plural-phase windings. This motor driver generates a magnetic field for rotating the rotor. The invention includes a plurality of transistors that operate as switches for supplying current to the windings. Additionally, it features a position detector that detects the rotational position of the rotor based on the terminal voltage of each winding. The switching controller is designed to control the transistors to an ON or OFF state, allowing for precise control of the rotor's speed. Notably, the switching controller can force each transistor into the OFF state for a predetermined duration in a predetermined cycle, enabling the position detector to function effectively during this period.

Career Highlights

Keiji Nishihara is currently employed at Matsushita Electric Industrial Co., Ltd. His work at this esteemed company has allowed him to collaborate with other talented individuals in the field. Nishihara's innovative spirit and technical expertise have made him a valuable asset to his team.

Collaborations

Some of Nishihara's coworkers include Hideo Nobekawa and Hideaki Mori. Their collective efforts contribute to the advancement of technology in their respective fields.

Conclusion

Keiji Nishihara's contributions to motor driver technology exemplify the spirit of innovation. His patent reflects a deep understanding of motor control systems and showcases his commitment to advancing technology. Through his work at Matsushita Electric Industrial Co., Ltd., Nishihara continues to influence the industry positively.