Company Filing History:
1 out of 52,735 
1 out of 279 
Years Active: 2021
Title: Sonoko Miyajiri: Innovator in Railroad Vehicle Circuit Systems
Introduction
Sonoko Miyajiri is a notable inventor based in Tachikawa, Japan. She has made significant contributions to the field of circuit systems for railroad vehicles. With a focus on enhancing the efficiency and functionality of these systems, her work has garnered attention in the engineering community.
Latest Patents
Miyajiri holds a patent for a "Circuit system for railroad vehicle." This innovative circuit system includes a power conversion unit, a first converter, a second converter, a power storage unit, and a control unit. The power conversion unit is designed to convert power supplied from an overhead wire into power for driving a motor mounted on a railroad vehicle. The first converter transforms the overhead wire's power into DC power, while the second converter converts the output from the first converter into usable power for the vehicle's load. Additionally, the power storage unit is connected to the input side of the second converter, allowing for efficient energy management. The control unit plays a crucial role by inputting regenerative power from the power conversion unit to the first converter and directing power from the first converter to the power storage unit when regeneration is detected.
Career Highlights
Throughout her career, Sonoko Miyajiri has worked with prominent companies such as Kabushiki Kaisha Toshiba and Toshiba Infrastructure Systems & Solutions Corporation. Her experience in these organizations has allowed her to develop and refine her innovative ideas in circuit systems.
Collaborations
Miyajiri has collaborated with talented individuals in her field, including Kohei Yamamoto and Sakio Nishimiya. These partnerships have contributed to her success and the advancement of her projects.
Conclusion
Sonoko Miyajiri is a pioneering inventor whose work in circuit systems for railroad vehicles showcases her expertise and dedication to innovation. Her contributions continue to impact the industry positively.