This inventor holds 2 USPTO granted patents. Top assignees: Kyosan Electric Mfg. Co., Ltd., Kyosan Electric Mfg. Co., Ltd.. Active years: 2023-2026.
Company Filing History:
Years Active: 2023-2026
Title: Kunihiro Muto: Innovator in High-Frequency Power Supply Technology
Introduction
Kunihiro Muto is a notable inventor based in Yokohama, Japan. He has made significant contributions to the field of power supply technology, holding 2 patents that showcase his innovative approach to high-frequency power conversion.
Latest Patents
Muto's latest patents include a high-frequency power supply device and a power conversion device. The high-frequency power supply device features an AC-DC converter that transforms input from a three-phase alternating-current source into direct current. This device incorporates a high-frequency amplifier with multiple FET elements, which outputs high-frequency alternating-current power. The design allows for the direct input of the AC-DC converter's output into the high-frequency amplifier, along with a phase conversion circuit that imparts phase differences to gate signals. This innovation effectively offsets fluctuation components in the direct current.
The power conversion device addresses phase deviation in output voltage caused by phase shift control. It converts DC voltage to AC voltage by phase-shift controlling the switching elements of a full bridge inverter. Unlike conventional methods that phase-shift only one leg of the inverter, Muto's approach phase-shifts both legs in opposite directions. This technique suppresses variations in the center phase of the overlap angle, enhancing the efficiency of power conversion.
Career Highlights
Muto has worked with Kyosan Electric Manufacturing Co., Ltd., where he has applied his expertise in power supply technology. His work has contributed to advancements in the field, particularly in high-frequency applications.
Collaborations
Some of Muto's notable coworkers include Hiroshi Kunitama and Takuya Yoshida. Their collaboration has likely fostered an environment of innovation and creativity in their projects.
Conclusion
Kunihiro Muto's contributions to high-frequency power supply technology reflect his dedication to innovation and excellence. His patents demonstrate a deep understanding of power conversion processes, making him a significant figure in the field.