Location History:
- Neyagawa, JP (1980)
- Suita, JP (1984 - 1988)
Company Filing History:
Years Active: 1980-1988
Title: Isao Yoshida: Innovator in DC Motor Control Technology
Introduction
Isao Yoshida is a notable inventor based in Suita, Japan. He has made significant contributions to the field of electrical engineering, particularly in the development of speed control apparatuses for DC motors. With a total of 5 patents to his name, Yoshida's work has had a lasting impact on motor control technology.
Latest Patents
Yoshida's latest patents include innovative designs for speed control apparatuses for DC motors. One of his inventions is a speed control apparatus that operates with a low voltage battery, featuring a reference voltage generating circuit that can function at voltages as low as 1 V. This apparatus allows for independent setting of output voltage and temperature coefficient. Another significant patent describes a speed control apparatus that utilizes a bridge circuit formed by the motor winding and a series resistor. This design includes a differential amplifier that amplifies the voltage difference between a reference voltage and a voltage proportional to the counter electromotive force of the DC motor.
Career Highlights
Isao Yoshida has spent a considerable part of his career at Matsushita Electric Industrial Co., Ltd. His work has focused on enhancing the efficiency and functionality of DC motor control systems. His innovative approaches have led to advancements that benefit various applications in the electrical engineering sector.
Collaborations
Throughout his career, Yoshida has collaborated with esteemed colleagues, including Hiromitsu Nakano and Mitsuharu Ota. These partnerships have fostered a creative environment that has contributed to the development of groundbreaking technologies in motor control.
Conclusion
Isao Yoshida's contributions to the field of DC motor control technology exemplify his innovative spirit and dedication to engineering excellence. His patents continue to influence the industry, showcasing the importance of research and development in advancing technology.