Location History:
- Funabashi, JP (1997 - 2000)
- Narashino, JP (2006 - 2017)
- Tokyo, JP (2023 - 2024)
Company Filing History:
5 out of 42,485 
5 out of 493 Years Active: 1997-2025
Title: Innovations by Hironori Ohashi: A Focus on Power Conversion and Motor Control
Introduction
Hironori Ohashi is a prominent inventor based in Narashino, Japan, known for his significant contributions to the fields of power conversion and motor control systems. With a total of nine patents to his name, Ohashi's work reflects a deep understanding of electrical engineering and innovative applications in technology.
Latest Patents
Ohashi's latest patents include a power conversion device and a motor control device. The power conversion device features a current measurement unit that measures phase current and a current vector calculation unit for performing a 3-phase to 2-phase conversion on the phase current. Additionally, it includes an amount-to-be-analyzed calculation unit that relies on the current vector to determine a significant amount for analysis. Notably, it also has a feature amount waveform extraction unit that is capable of isolating waveforms within a specific frequency range based on the analyzed amount.
The motor control device, on the other hand, receives a speed command from an upper layer system control device equipped with a position controller. It incorporates a position command estimator that calculates an estimate of a position command based on the speed command and the motor axis position response. Furthermore, this device features a speed command generator that generates an actual speed command to ensure stability, preventing any oscillation in the end section of a connected machine.
Career Highlights
Hironori Ohashi has had a remarkable career, working with iconic organizations such as Hitachi, Ltd. and Hitachi Industrial Equipment Systems Co., Ltd. His expertise and innovation in power and control systems have positioned him as a valuable asset within these leading companies.
Collaborations
Throughout his career, Ohashi has collaborated with talented individuals in the field, including his noteworthy coworker, Shinji Yonemoto. Their combined knowledge and skills have undoubtedly contributed to the development of effective and innovative technology solutions.
Conclusion
Hironori Ohashi's contributions to the realm of electrical engineering through his innovative patents, especially in power conversion and motor control, showcase the significance of his work. As technology continues to evolve, the impact of such inventions plays a crucial role in shaping the future of engineering and automation.
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.