Takashi Shigemasa

Title: Takashi Shigemasa: Innovator in Power Conversion Technology

Introduction

Takashi Shigemasa is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of power conversion technology, holding a total of 5 patents. His work focuses on enhancing the efficiency and reliability of power systems.

Latest Patents

Shigemasa's latest patents include a power conversion device, a control device, and a distributed power source system. The power conversion device features a major circuit part that converts power from a distributed source into AC power suitable for the power system. It also includes a controller that manages the operation of the major circuit part. This controller is equipped with an estimated value calculation part and a reactive power calculation part, which work together to assess various components of the system impedance.

Another notable patent is the system frequency detector, which comprises an orthogonal coordinate signal generator. This generator produces an orthogonal two-phase voltage signal from a three-phase voltage signal of the power system. The frequency calculator within this system calculates the angular frequency and system frequency based on the generated signals, ensuring accurate monitoring of the power system's performance.

Career Highlights

Throughout his career, Takashi Shigemasa has worked with esteemed companies such as Toshiba Mitsubishi Electric Industrial Systems Corporation and TMEIC Corporation. His experience in these organizations has allowed him to develop innovative solutions that address complex challenges in power systems.

Collaborations

Shigemasa has collaborated with notable colleagues, including Yasuaki Mitsugi and Hiroyuki Koura. Their combined expertise has contributed to advancements in the technologies they have developed together.

Conclusion

In summary, Takashi Shigemasa is a distinguished inventor whose work in power conversion technology has led to several impactful patents. His contributions continue to influence the efficiency and reliability of power systems globally.