Location History:
- Yachiyo, JP (1999)
- Ome, JP (2004)
- Yotsukaido, JP (2002 - 2013)
- Yotsukaidou, JP (2009 - 2013)
- Tokyo, JP (2001 - 2024)
Company Filing History:
12 out of 493 
4 out of 42,485 
1 out of 39,228 
Years Active: 1999-2025
Title: Innovative Contributions of Masahiro Hiraga
Introduction: Masahiro Hiraga, based in Yotsukaido, Japan, is a renowned inventor with an impressive portfolio of 19 patents. His innovations in power conversion devices reflect his dedication to enhancing electrical systems, particularly in driving motors.
Latest Patents: Among his recent innovations, one notable patent is a power conversion device designed to improve reliability in motor driving. This device features a rectifying portion to convert AC voltage into DC voltage, a smoothing capacitor, an inverter for AC power output, and advanced components for regenerative braking. The regenerative braking mechanism is especially designed to halt switching elements when an overcurrent is detected, ensuring safety and efficiency. Another significant invention is his speed calculation device and power conversion device, which maintains precise time axis resolution for motor speed detection. This device intelligently measures duty cycles from encoder output pulses, contributing to enhanced motor control.
Career Highlights: Hiraga has significantly contributed to the field through his work at prominent companies such as Hitachi Industrial Equipment Systems Co., Ltd. and Hitachi, Ltd. His experience in these organizations has allowed him to apply his inventive skills in developing cutting-edge technologies.
Collaborations: Throughout his career, Masahiro Hiraga has collaborated with esteemed colleagues, including Satoshi Ibori and Masayuki Hirota. These partnerships have facilitated a fruitful exchange of ideas, further enriching his innovative projects.
Conclusion: Masahiro Hiraga is a visionary inventor whose contributions to power conversion technology showcase his profound understanding of electrical engineering. His patents not only signify technological advancements but also highlight the importance of collaboration in fostering innovation.
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.