Location History:
- Kanagawa, JP (2017)
- Yokohama, JP (2005 - 2020)
Company Filing History:
2 out of 152 
2 out of 13,411 
2 out of 99 
Years Active: 2005-2020
Title: Atsuo Kawamura: Innovator in Power Supply Systems
Introduction
Atsuo Kawamura is a notable inventor based in Yokohama, Japan. He has made significant contributions to the field of electrical engineering, particularly in power supply systems. With a total of 6 patents to his name, Kawamura's work has had a considerable impact on the industry.
Latest Patents
Kawamura's latest patents include a power supply system that features multiple AC output converters connected in parallel. This innovative system is designed to supply electric power to an AC load efficiently. Each converter includes an output impedance, a PWM converter for converting DC power into AC power, and a controller that outputs a voltage command value to the PWM converter. The controller utilizes a vector adder to perform vector addition of the voltage drop caused by the current flowing through the output impedance and the voltage command value of the AC load.
Another significant patent is for a soft switching system DC-DC converter. This converter includes a switching element, a transformer or reactor, and a controller that manages the switching operation of the element. The controller ensures that the switching operation occurs when the voltage or current applied to the switching element is zero. If the required output value is lower than the minimum output for soft switching, the controller alternates between an operation period and a stop period to maintain efficiency.
Career Highlights
Throughout his career, Kawamura has worked with prominent companies such as Japan Servo Co., Ltd. and Nissan Motor Company Limited. His experience in these organizations has allowed him to develop and refine his innovative ideas in power supply technology.
Collaborations
Kawamura has collaborated with notable colleagues, including Yoshifumi Kuwano and Akio Takemori. These partnerships have contributed to the advancement of his projects and the successful development of his patents.
Conclusion
Atsuo Kawamura is a distinguished inventor whose work in power supply systems has led to several important patents. His contributions continue to influence the field of electrical engineering, showcasing his commitment to innovation and excellence.