Koji Maeda

Title: Koji Maeda: Innovator in Power Line Detection Technology

Introduction

Koji Maeda is a notable inventor based in Kobe, Japan. He has made significant contributions to the field of electrical engineering, particularly in the area of power line detection technology. With a total of 3 patents to his name, Maeda's work has had a considerable impact on improving the reliability of power systems.

Latest Patents

One of Maeda's latest patents is an apparatus for detecting a current peak value and a voltage peak value. This innovative device is designed to identify faults in a power line system by detecting the amount of time or phase angle deviation between the voltage peak and current peak points. The decision circuit within the apparatus detects the sampling number indicating the peak point, and the output is applied to counter circuits, which count the number of sampling times according to a preset sampling period. The operation of the counter is halted by an output signal from the decision circuit, ultimately providing a digital number that represents the distance between the peak points of voltage and current.

Another significant patent is a frequency detection system. This system samples a sinusoidal input with a predetermined constant sampling period to form four sampled values. It calculates the angular frequency of the sinusoidal input after converting it to corresponding digital values, providing a measure of its frequency. The absolute value of the frequency can be obtained by taking the arc-cosine of one half the sampled value.

Career Highlights

Koji Maeda is currently associated with Mitsubishi Electric Corporation, where he continues to innovate and develop new technologies. His work has been instrumental in enhancing the efficiency and safety of electrical systems.

Collaborations

Maeda has collaborated with several talented individuals in his field, including Sunao Suzuki and Tadahiro Goda. These collaborations have fostered a creative environment that has led to the development of groundbreaking technologies.

Conclusion

Koji Maeda's contributions to power line detection technology exemplify the spirit of innovation. His patents reflect a commitment to improving electrical systems, ensuring greater reliability and safety in power distribution.