Tokimune Kitajima

Title: Innovations by Tokimune Kitajima

Introduction

Tokimune Kitajima is a notable inventor based in Tokyo, Japan. He has made significant contributions to the field of electrical engineering, particularly in the development of efficient power conversion technologies. With a total of 3 patents to his name, Kitajima's work has had a considerable impact on modern electronic systems.

Latest Patents

One of his latest patents is a flyback converter that boasts high efficiency regardless of the magnitude of the exciting current. This innovative converter utilizes a transformer to process the exciting current into an excited current, with the inductance value being controlled based on the exciting current. The exciting current is managed by a current control circuit, ensuring that it is intermittently supplied to the transformer. During the intervals when the exciting current is absent, the transformer generates the excited current.

Another significant patent is a voltage-resonant DC-DC converter, which features a snubber circuit in its secondary circuit. This snubber circuit consists of a series connection of a capacitor and a diode, forming a loop for a secondary resonance circuit. This design allows a secondary resonance current to flow in the forward direction of the diode, while also regulating the output voltage of the converter through a dedicated regulation circuit.

Career Highlights

Tokimune Kitajima is currently employed at NEC Corporation, a leading technology company known for its innovations in information technology and electronics. His work at NEC has allowed him to further develop his expertise in power conversion technologies and contribute to various projects that enhance the efficiency of electronic devices.

Collaborations

Throughout his career, Kitajima has collaborated with several talented individuals, including Tadasi Kobayasi and Teruhisa Sudou. These collaborations have fostered a creative environment that has led to the development of groundbreaking technologies in the field.

Conclusion

Tokimune Kitajima's contributions to electrical engineering, particularly in power conversion, highlight his innovative spirit and dedication to advancing technology. His patents reflect a commitment to efficiency and effectiveness in electronic systems, making him a significant figure in the industry.