Location History:
- Funabashi, JP (2013)
- Tokyo, JP (2021 - 2024)
Company Filing History:
Years Active: 2013-2025
Title: Yusaku Onuma: Innovator in Power Conversion Technology
Introduction
Yusaku Onuma is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of power conversion technology, holding a total of 11 patents. His innovative work focuses on enhancing the efficiency and control of magnet motors.
Latest Patents
One of his latest patents is a power conversion device that achieves highly accurate control characteristics by estimating an induced voltage coefficient of a magnet motor without the need for rotary auto-tuning. This invention calculates a first power based on the output voltage and current of the magnet motor, while a second power is derived from the electric circuit constant, current command, output frequency, and the induced voltage coefficient. The induced voltage coefficient is estimated to ensure that the calculated first power aligns with the second power, allowing for precise control of the magnet motor's operation.
Another notable patent is a power conversion device and control method designed to suppress an increase in current flowing through a motor, even when a voltage command exceeds the amplitude of a carrier wave. This device controls the drive of a three-phase motor by converting a DC voltage into a voltage command-based voltage through a switching circuit. It includes a DC voltage detector, a norm generator, a modulated wave generator, and a control signal generator, all working together to optimize motor performance.
Career Highlights
Yusaku Onuma is currently employed at Hitachi Industrial Equipment Systems Co., Ltd., where he continues to develop innovative solutions in power conversion technology. His work has significantly impacted the efficiency and reliability of motor control systems.
Collaborations
He collaborates with talented coworkers, including Takuya Sugimoto and Kazuaki Tobari, who contribute to the advancement of their projects and innovations.
Conclusion
Yusaku Onuma's contributions to power conversion technology exemplify the spirit of innovation. His patents reflect a commitment to improving motor control systems, making him a key figure in the field.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.