Keiki Fujita

Title: Keiki Fujita: Innovator in DC Feeder Voltage Technology

Introduction

Keiki Fujita is a notable inventor based in Tokyo, Japan. He has made significant contributions to the field of electrical engineering, particularly in the area of DC feeder voltage technology. With a total of two patents to his name, Fujita's work focuses on enhancing the efficiency and control of power systems in electrified train sections.

Latest Patents

Fujita's latest patents include a DC feeder voltage computing device, a DC feeder voltage control system, and a DC feeder voltage computation method. The DC feeder voltage computing device features a model information storing unit, a run history information storing unit, and a voltage setting value computing unit. The model information storing unit is responsible for storing model information, while the run history information storing unit keeps track of the run history of multiple trains operating in a DC-electrified section. The voltage setting value computing unit computes a voltage setting value to control substation voltage, ensuring that power consumption meets preset conditions.

Another significant patent is the DC-feeding-voltage calculating apparatus, which includes storage for train model information, feeding network model information, and substation model information. This apparatus estimates train operation information based on stored data and calculates a substation voltage setting value to optimize regenerative power in electrified sections.

Career Highlights

Keiki Fujita is currently employed at Mitsubishi Electric Corporation, where he continues to innovate in the field of electrical engineering. His work has been instrumental in developing technologies that improve the efficiency of DC electrification systems.

Collaborations

Fujita has collaborated with notable colleagues such as Hironori Mochimaru and Kenji Ueda. Their combined expertise has contributed to advancements in the technologies related to DC feeder voltage systems.

Conclusion

Keiki Fujita's contributions to the field of electrical engineering, particularly in DC feeder voltage technology, highlight his innovative spirit and dedication to improving power systems. His patents reflect a commitment to enhancing the efficiency of electrified train operations, making a significant impact in the industry.