Takashi Ogura

Title: The Innovations of Takashi Ogura

Introduction

Takashi Ogura is a notable inventor based in Hitachinaka, Japan. He has made significant contributions to the field of power conversion technology, holding a total of 4 patents. His work focuses on improving the reliability and efficiency of power systems.

Latest Patents

One of his latest patents is a power conversion device with an inverter circuit. The objective of this invention is to enhance availability during power loss situations. This device includes a gate drive power supply circuit that can provide power within a predetermined normal voltage range. Additionally, a backup power supply circuit is designed to supply power to the lower arm gate circuit when the voltage from the primary circuit falls below the normal range. This ensures that the lower arm gate circuit can drive the lower arm switching circuit in a short state, keeping all switching elements turned on.

Another significant patent is the inverter control device. This invention addresses potential faults in a buffer unit that outputs a PWM signal. When a fault is detected in the PWM signal, the fault detection unit can identify the issue and output a PWM fault signal to an arithmetic unit and the second buffer unit. In response, the second buffer unit sets its output to high impedance and drives the inverter circuit using a protection operation PWM signal, thereby safeguarding the motor.

Career Highlights

Throughout his career, Takashi Ogura has worked with prominent companies such as Hitachi Automotive Systems and Hitachi Astemo. His experience in these organizations has allowed him to develop and refine his innovative ideas in power conversion technology.

Collaborations

Takashi has collaborated with several talented individuals, including Satoru Shigeta and Hiroaki Igarashi. These partnerships have contributed to the advancement of his projects and the successful development of his patents.

Conclusion

Takashi Ogura's contributions to power conversion technology are noteworthy, with his innovative patents addressing critical issues in the field. His work continues to influence advancements in power systems, showcasing his dedication to improving technology.