Company Filing History:
Years Active: 2014-2015
Title: Tsutomu Kominami: Innovator in Power Conversion Technology
Introduction
Tsutomu Kominami is a notable inventor based in Hitachinaka, Japan. He has made significant contributions to the field of power conversion technology, holding a total of 3 patents. His work focuses on enhancing the efficiency and reliability of semiconductor devices used in power conversion circuits.
Latest Patents
Kominami's latest patents include a power conversion device and a temperature rise calculation method. The temperature rise calculation method estimates the temperature rise in semiconductor switching elements, which is crucial for assessing their degradation and remaining lifetime. This method utilizes a heat generation amount calculation unit within a calculation processor, employing current and voltage command values to calculate chip loss. Additionally, the power converter patent describes a device that includes multiple semiconductor devices forming a power conversion circuit, with radiating fins designed to dissipate heat effectively. The innovative design allows the direction of refrigerant flow to change based on the operation status of the power conversion circuit.
Career Highlights
Tsutomu Kominami is associated with Hitachi, Ltd., where he has been instrumental in developing advanced power conversion technologies. His expertise in semiconductor devices has positioned him as a key figure in the industry.
Collaborations
Kominami has collaborated with notable coworkers, including Katsumi Ishikawa and Mami Kunihiro. Their combined efforts have contributed to the advancement of power conversion technologies.
Conclusion
Tsutomu Kominami's innovative work in power conversion technology and his contributions to semiconductor devices have made a significant impact in the field. His patents reflect a commitment to improving efficiency and reliability in power systems.