Location History:
- Hitachinaka, JP (2017 - 2021)
- Ibaraki, JP (2021)
Company Filing History:
Years Active: 2017-2021
Title: Innovations of Yuji Sobu
Introduction
Yuji Sobu is a prominent inventor based in Hitachinaka, Japan. He has made significant contributions to the field of power conversion technology, holding a total of eight patents. His work focuses on enhancing the efficiency and functionality of power conversion devices.
Latest Patents
One of his latest patents is a control device with magnetic flux density calculation. This invention aims to sufficiently reduce the switching loss of a power conversion device. The DC-DC converter he developed includes a switching circuit that converts input first DC power into AC power, a transformer for voltage conversion, and an output circuit that converts the AC power back into second DC power. The control circuit calculates a magnetic flux density value B of the transformer and adjusts the drive frequency of the switching circuit based on this value.
Another notable patent is the bus bar structure and power conversion apparatus using the same. This power conversion apparatus includes a smoothing capacitance element connected between the positive and negative terminals of a power source. It is designed to smooth voltage changes superimposed on a DC voltage. The apparatus features a switching circuit that converts the DC voltage into an AC voltage, along with first and second bus bars that connect to the smoothing capacitance element. These bus bars are configured to allow current to flow through opposing portions in the same direction.
Career Highlights
Yuji Sobu is currently employed at Hitachi Automotive Systems, Ltd., where he continues to innovate in the field of power conversion. His work has been instrumental in advancing technologies that improve energy efficiency and performance in automotive systems.
Collaborations
He collaborates with talented coworkers, including Keisuke Fukumasu and Hiroki Funato, who contribute to the development of cutting-edge technologies in their field.
Conclusion
Yuji Sobu's contributions to power conversion technology through his innovative patents demonstrate his expertise and commitment to advancing the industry. His work not only enhances the efficiency of power devices but also paves the way for future innovations in automotive systems.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.