Yoshihisa Hiramatsu

Title: Innovations by Yoshihisa Hiramatsu

Introduction

Yoshihisa Hiramatsu is a notable inventor based in Kyoto, Japan. He has made significant contributions to the field of electrical engineering, particularly in the development of voltage detection circuits and power supply devices. With a total of 3 patents to his name, Hiramatsu continues to push the boundaries of innovation.

Latest Patents

One of Hiramatsu's latest patents is a voltage detection circuit. This invention is designed with the minimum number of circuit elements necessary, allowing for the temperature characteristic of the reference level for voltage detection to be set arbitrarily. The circuit features a differential pair of transistors, a voltage division circuit, and a resistor that checks whether the input voltage is equal to a predetermined level based on the output from the differential pair.

Another significant patent is a power supply circuit with a soft starting feature. This power supply device includes a soft starting circuit composed of a transistor connected to a comparator, a clamp circuit, a constant-current source, and a capacitor. The design ensures a smooth startup for the power supply, enhancing its reliability and efficiency.

Career Highlights

Hiramatsu is currently employed at Rohm Co., Ltd., where he continues to innovate and develop new technologies. His work has had a lasting impact on the industry, particularly in the areas of voltage detection and power supply systems.

Collaborations

Throughout his career, Hiramatsu has collaborated with talented individuals such as Yoshiyuki Hojo and Kou Takemura. These collaborations have fostered a creative environment that has led to the development of groundbreaking technologies.

Conclusion

Yoshihisa Hiramatsu is a distinguished inventor whose work in electrical engineering has resulted in valuable patents that enhance the functionality of electronic devices. His contributions continue to influence the industry and inspire future innovations.