Kohei Majima

Title: Kohei Majima: Innovator in Short Circuit Detection Technology

Introduction

Kohei Majima is a notable inventor based in Tokyo, Japan. He has made significant contributions to the field of electrical engineering, particularly in the area of short circuit detection for rotating electric machines. His innovative approach has the potential to enhance the safety and efficiency of electrical systems.

Latest Patents

Majima holds a patent for a "Short circuit detection device, and short circuit detection method for rotating electric machine." This invention provides a short circuit state analyzer that compares the difference value when AC excitation current is applied at a first frequency with a threshold value. It estimates short circuit resistance based on the difference value and applies AC excitation current at a second frequency when necessary. This method improves the reliability of detecting short circuits in electric machines.

Career Highlights

Kohei Majima is associated with Mitsubishi Electric Corporation, a leading company in the field of electrical and electronic equipment. His work at Mitsubishi Electric has allowed him to focus on innovative solutions that address critical challenges in electrical engineering.

Collaborations

Majima has collaborated with notable colleagues, including Yuji Takizawa and Haruyuki Kometani. Their teamwork has contributed to advancements in the technology surrounding short circuit detection.

Conclusion

Kohei Majima's contributions to short circuit detection technology exemplify the importance of innovation in electrical engineering. His patent and work at Mitsubishi Electric Corporation highlight his role as a key inventor in this field.