Makoto Kawamura

Title: The Innovations of Makoto Kawamura

Introduction

Makoto Kawamura is a notable inventor based in Chiryu, Japan. He has made significant contributions to the field of safety technology, particularly in the development of safety programmable logic controllers (PLCs) and contact welding detection devices. With a total of 2 patents, his work reflects a commitment to enhancing safety and reliability in electrical systems.

Latest Patents

Kawamura's latest patents include a Safety PLC, which features duplex power supply circuits. This innovative safety PLC comprises a first output-stage transistor, a first DC power supply that drives this transistor, a second output-stage transistor, and a second DC power supply. Additionally, it includes a signal transfer path with a resistor connecting the two output-stage transistors and a pair of overvoltage protection units. These units are strategically placed between the output terminals of the DC power supplies to restrict the maximum output potential difference.

Another significant invention is the contact welding detecting device for relays. This device includes a relay with two contacts that manage the transmission of DC input potentials. It features a relay open/close control unit that simultaneously manages the opening and closing of the contacts when welding is detected. The device also incorporates two potential difference detection units that monitor the voltage across various points in the relay system.

Career Highlights

Kawamura is currently employed at Jtekt Corporation, where he continues to innovate and develop advanced safety technologies. His work at Jtekt has positioned him as a key player in the field of electrical safety systems.

Collaborations

Throughout his career, Kawamura has collaborated with talented individuals such as Kuniyuki Niwa and Sutemaro Kato. These collaborations have fostered an environment of innovation and creativity, leading to the development of groundbreaking technologies.

Conclusion

Makoto Kawamura's contributions to safety technology through his patents and work at Jtekt Corporation highlight his dedication to improving electrical safety systems. His innovative spirit and collaborative efforts continue to influence the industry positively.