This inventor holds 8 USPTO granted patents and 6 published patent applications and 1 EPO patent. Top assignee: Mitsubishi Electric Corporation. Active years: 2019-2026.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Chiyoda-ku, JP (2019 - 2020)
- Tokyo, JP (2022 - 2023)
Company Filing History:
Years Active: 2019-2026
Title: Hajime Toyoda: Innovator in Power Conversion Technology
Introduction
Hajime Toyoda is a prominent inventor based in Chiyoda-ku, Japan. He has made significant contributions to the field of power conversion technology, holding a total of 8 patents. His work focuses on enhancing the efficiency and accuracy of power conversion devices.
Latest Patents
One of Hajime Toyoda's latest patents is a power conversion device designed to suppress interference between the control of input current from an AC power supply and voltage control for a DC capacitor. This innovative device allows for high-accuracy control while reducing the capacitance and size of the DC capacitor. The power conversion circuit includes a rectification bridge circuit, a leg circuit with upper and lower legs connected in series, a DC capacitor, a smoothing capacitor, and a reactor. The control circuit performs PWM control of the leg circuit by generating a duty cycle to manage the voltage of the DC capacitor while simultaneously controlling the input current from the AC power supply.
Another notable patent is a power converter that connects a DC capacitor and a leg in parallel to both high-voltage and low-voltage power lines. This leg comprises multiple semiconductor switching elements arranged in series between the power lines, with an output end connected to a load. An attenuator is integrated to mitigate resonance within the main circuit loop formed by the DC capacitor and the semiconductor switching elements.
Career Highlights
Hajime Toyoda is currently employed at Mitsubishi Electric Corporation, where he continues to develop innovative solutions in power conversion technology. His work has significantly impacted the efficiency of electrical systems, making them more reliable and compact.
Collaborations
Hajime has collaborated with notable colleagues, including Takaaki Takahara and Hiroyasu Iwabuki. Their combined expertise has contributed to advancements in the field of power conversion.
Conclusion
Hajime Toyoda is a distinguished inventor whose work in power conversion technology has led to several innovative patents. His contributions continue to shape the future of electrical systems, enhancing their efficiency and performance.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile