Company Filing History:
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Years Active: 2009-2025
Title: Innovations of Toshikazu Takagi
Introduction
Toshikazu Takagi is a notable inventor based in Tokyo, Japan. He has made significant contributions to the field of electric power conversion, holding a total of 5 patents. His work focuses on enhancing the efficiency and reliability of power conversion systems.
Latest Patents
One of his latest patents is an electric-power conversion apparatus. This apparatus includes a driving circuit that performs switching control of semiconductor switching devices. It also features a short-circuit control means that manages short-circuit conditions in the electric-power conversion circuit. Additionally, it has an excessive-current detection means that identifies abnormalities caused by excessive current in the semiconductor switching device. Furthermore, a gate-drive-abnormality detection means is included to monitor the gate voltage of the semiconductor switching device. Based on the results from these detection means, the short-circuit control can activate all semiconductor switching devices in either the upper or lower arm to manage short-circuit conditions effectively.
Another significant patent is a power conversion system, specifically a DC/DC converter. This converter comprises a power conversion unit that transforms input voltage to the required output voltage. It includes a first control unit that drives the power conversion unit and a power supply device that utilizes the output of the DC/DC converter or a battery as its power source. The power supply function is managed by a second control unit during the standby state of the DC/DC converter, ensuring efficient power management.
Career Highlights
Toshikazu Takagi has worked with prominent companies, including Mitsubishi Electric Corporation. His experience in these organizations has allowed him to develop innovative solutions in power conversion technology.
Collaborations
He has collaborated with notable coworkers such as Hajime Takahashi and Chiharu Morisaki, contributing to various projects that enhance the field of electric power conversion.
Conclusion
Toshikazu Takagi's contributions to electric power conversion technology are significant and impactful. His innovative patents and career achievements reflect his dedication to advancing this essential field.