This inventor holds 18 USPTO granted patents and 1 published patent application, primarily in Induction Motor Control. Top assignees: Fuji Electric Co., Ltd., Fuji Electric Systems Co. Ltd.. Active years: 1996-2020.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Kawasaki, JP (1996)
- Kanagawa, JP (1996 - 2002)
- Tokyo, JP (1997 - 2020)
Company Filing History:
Years Active: 1996-2020
Areas of Expertise:
Title: Innovations by Hidetoshi Umida: A Pioneer in Gate Drive and Inverter Technology
Introduction
Hidetoshi Umida, an accomplished inventor based in Tokyo, Japan, holds an impressive portfolio of 18 patents. His innovative designs primarily focus on advancements in gate drive circuits and inverter technologies. Umida’s work has significantly contributed to the efficiency and functionality of electrical systems.
Latest Patents
Among Hidetoshi Umida's most recent patents is a sophisticated gate drive circuit. This circuit includes a signal generation unit that produces a first gate drive signal, along with a signal isolation unit that generates a second gate drive signal, which is electrically isolated from the signal generation unit. Additionally, the output stage device receives the second gate drive signal and generates a third output signal in response. The configuration includes two paths that enhance the circuit's performance and reliability.
Another notable patent is related to an inverter that adjusts voltage command values, alongside a control method for producing polyphase alternate-current electrical power. This innovation involves generating modified PWM pulses for controlling semiconductor switching elements based on a shared counter for respective phases. The method ensures that the total pulse width corresponds to a calculated time average output voltage, allowing for precise control and improved efficiency in inverter applications.
Career Highlights
Hidetoshi Umida has lent his expertise to prominent companies, including Fuji Electric Co., Ltd. and Fuji Electric Systems Co. Ltd. His career is marked by a dedication to enhancing electrical engineering technologies through innovative design and development.
Collaborations
Throughout his impressive career, Umida has collaborated with talented individuals, including Hirokazu Tajima and Hiroshi Tetsutani. These partnerships have fostered an environment of creative synergy, enabling the development of groundbreaking technologies.
Conclusion
Hidetoshi Umida stands as an influential figure in the realm of electrical innovations. His 18 patents reflect a commitment to advancement in gate drive circuits and inverter technologies, positioning him as a key contributor to the industry. With ongoing collaborations and a dedication to innovation, Umida's future endeavors are anticipated to further shape technological progress.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile