Location History:
- Yokosuka, JP (2003 - 2010)
- Kanagawa, JP (2007 - 2017)
- Yokohama, JP (2018)
Company Filing History:
10 out of 13,402 
1 out of 395 
1 out of 832,812 Years Active: 2003-2018
Title: Yuichi Shibukawa: Innovator in DC-DC Converter Technology
Introduction
Yuichi Shibukawa is a prominent inventor based in Yokosuka, Japan. He has made significant contributions to the field of power electronics, particularly in the development of DC-DC converters. With a total of 10 patents to his name, Shibukawa's work has had a substantial impact on modern power supply systems.
Latest Patents
Shibukawa's latest patents include innovative technologies such as a DC-DC converter and a control method thereof. This soft switching system DC-DC converter features 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. Additionally, when 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.
Another notable patent is for a power supply device and method of controlling the same. This device consists of a first power supply that can store and discharge electric power, along with a second power supply connected in series. An isolated DC-DC converter is included, which connects the two power supplies, and a power supply control unit regulates the voltage of the second power supply. The system converts direct-current voltage from both power supplies into alternating-current voltage for use in vehicle drive motors.
Career Highlights
Throughout his career, Yuichi Shibukawa has worked with notable companies, including Nissan Motor Company Limited. His expertise in power electronics has been instrumental in advancing technologies that enhance energy efficiency and performance in automotive applications.
Collaborations
Shibukawa has collaborated with talented individuals such as Kensuke Sasaki and Atsuo Kawamura. These partnerships have fostered innovation and contributed to the successful development of his patented technologies.
Conclusion
Yuichi Shibukawa's contributions to the field of power electronics, particularly through his patents on DC-DC converters, demonstrate his commitment to innovation. His work continues to influence the design and efficiency of power supply systems in various applications.