Shiro Nagaoka

Title: Shiro Nagaoka: Innovator in Wireless Power Transmission

Introduction

Shiro Nagaoka, based in Ome, Japan, is a notable inventor with a robust portfolio of 18 patents. His work largely focuses on advancements in wireless power transmission technologies, demonstrating a strong commitment to enhancing the efficiency and convenience of power delivery systems.

Latest Patents

Nagaoka's latest inventions include a sophisticated power transmitter designed to wirelessly supply power to a receiver. This device features a power converter that transforms power from a source into direct current (DC). It also incorporates a DC/alternating current (AC) converter, which converts the DC power into AC power, alongside a capacitor at the input of the converter. An innovative controller manages the discharge of the capacitor to ensure safe operation once the converter stops. This controller adjusts the driving frequency and phase shift of the converter to maintain the power at levels within the withstand limits.

Another significant patent revolves around a wireless power transfer system, which involves a first coil that transmits power wirelessly to a second coil located within the power receiver. It includes a converter to change DC power into AC power, enabling effective energy transfer. The controller meticulously manages power delivery by fine-tuning the frequency of the AC power, while also potentially adjusting the phase and voltage based on the load requirements, thus optimizing operational efficiency.

Career Highlights

Throughout his career, Shiro Nagaoka has made significant strides in the field of electrical engineering. He has been associated with renowned organizations such as Kabushiki Kaisha Toshiba and IHI Corporation, where he has contributed to innovative projects and developments. His expertise in power systems and electronics has enabled him to hold a pivotal role in advancing wireless power transmission technologies.

Collaborations

Shiro has worked alongside several talented individuals, including colleagues Tatsuhiko Ikehata and Kei Tashiro. These collaborations have fostered a creative environment that encourages the exploration of new ideas and solutions in the field of electrical engineering, pushing the boundaries of what's possible in wireless power technology.

Conclusion

In summary, Shiro Nagaoka stands out as a significant figure in the realm of wireless power innovations. His numerous patents highlight his dedication to improving power transmission and delivery systems. Through his career and collaborations, Nagaoka continues to make impactful contributions, shaping the future of electrical engineering and technology.