Location History:
- Matsumoto, JP (2012)
- Hitachinaka, JP (2000 - 2022)
Company Filing History:
7 out of 42,485 
5 out of 2,028 
2 out of 102 
Years Active: 2000-2025
Title: Toshisada Mitsui: Innovator in Synchronous Motor Technology
Introduction
Toshisada Mitsui is a prominent inventor hailing from Hitachinaka, Japan. With an impressive portfolio of 14 patents, he has significantly contributed to the field of synchronous motor technology. His work focuses on enhancing control mechanisms that improve the performance and efficiency of these motors.
Latest Patents
Mitsui's recent inventions include groundbreaking patents such as the "Drive apparatus of synchronous motor and method for driving synchronous motor." This innovation features a current detecting unit that identifies the phase current flowing to the synchronous motor and a magnetic pole position estimating unit, crucial for optimizing motor performance. This unit employs a first peak-to-peak detector for analyzing phase current, a quadrature component detector, and a second peak-to-peak detector, enabling the accurate estimation of the rotor's magnetic pole position.
Additionally, he has developed an "Inverter control device, inverter control method, inverter control program" aimed at improving inverter control characteristics while minimizing manufacturing costs. This device incorporates a current control unit that calculates multi-phase voltage command signals and a gate signal generation unit for efficient operation of switching elements.
Career Highlights
Throughout his career, Mitsui has had the opportunity to work with esteemed organizations such as Hitachi, Ltd. and Hitachi Automotive Systems, Ltd. His extensive experience in these companies has provided a solid foundation for his innovative endeavors, particularly in the realm of motor control technology.
Collaborations
Mitsui has collaborated with notable colleagues in the field, including Hideki Miyazaki and Shigeyuki Yoshihara. Together, their combined expertise has fostered advancements in synchronous motor and inverter technology, enhancing overall efficiency and effectiveness in the industry.
Conclusion
Toshisada Mitsui's contributions to synchronous motor technology and inverter control demonstrate his commitment to innovation. With a keen focus on enhanced control mechanisms and cost-effective solutions, he continues to influence the evolving landscape of motor engineering and technology. His ongoing research and development efforts are a testament to the critical role of inventors in driving advancements in modern engineering.
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.