Location History:
- Amagasaki, JA (1976)
- Itami, JP (1987)
Company Filing History:
Years Active: 1976-1987
Title: Hiroshi Mitsuoka: Innovator in Gate Turnoff Thyristor Technology
Introduction
Hiroshi Mitsuoka is a prominent inventor based in Amagasaki, Japan. He has made significant contributions to the field of electrical engineering, particularly in the development of gate turnoff thyristor (GTO) technology. With a total of 8 patents to his name, Mitsuoka's work has had a lasting impact on power electronics.
Latest Patents
Mitsuoka's latest patents include innovative designs aimed at improving the efficiency and reliability of GTOs. One of his notable inventions is a snubber circuit for gate turnoff thyristors. This circuit is designed to suppress abnormal rises in the anode-cathode voltage of a GTO. It features a main snubber circuit and several sub snubber circuits that are activated based on the main current flowing through the GTO. This design minimizes power loss and enhances performance.
Another significant patent is a drive circuit for gate turnoff thyristors. This circuit utilizes a combination of switching elements and a reactor to control the GTO's operation. By managing the current flow effectively, Mitsuoka's design allows for the smooth operation of the GTO, ensuring that the main circuit current can be interrupted when necessary.
Career Highlights
Mitsuoka has spent a considerable part of his career at Mitsubishi Electric Corporation, where he has been able to apply his innovative ideas in practical applications. His work has not only advanced the technology of GTOs but has also contributed to the overall progress in power electronics.
Collaborations
Throughout his career, Mitsuoka has collaborated with several talented individuals, including Yoshio Kimura and Isamu Hosono. These collaborations have fostered an environment of innovation and have led to the development of groundbreaking technologies in the field.
Conclusion
Hiroshi Mitsuoka's contributions to gate turnoff thyristor technology exemplify his dedication to innovation in electrical engineering. His patents reflect a deep understanding of power electronics and a commitment to enhancing the efficiency of electrical systems. His work continues to influence the industry and inspire future advancements.